; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-NOBMI
; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-BMI1
; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-BMI1
; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-BMI2
; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X86,X86-BMI2
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-NOBMI
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-BMI1,X64-BMI1NOTBM
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-BMI1,X64-BMI1TBM
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-BMI2,X64-BMI2TBM
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=X64,X64-BMI2,X64-BMI2NOTBM
; *Please* keep in sync with test/CodeGen/AArch64/extract-lowbits.ll
; https://bugs.llvm.org/show_bug.cgi?id=36419
; https://bugs.llvm.org/show_bug.cgi?id=37603
; https://bugs.llvm.org/show_bug.cgi?id=37610
; Patterns:
; a) x & (1 << nbits) - 1
; b) x & ~(-1 << nbits)
; c) x & (-1 >> (32 - y))
; d) x << (32 - y) >> (32 - y)
; are equivalent.
; ---------------------------------------------------------------------------- ;
; Pattern a. 32-bit
; ---------------------------------------------------------------------------- ;
define i32 @bzhi32_a0(i32 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_a0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_a0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_a0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_a0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_a0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_a0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%onebit = shl i32 1, %numlowbits
%mask = add nsw i32 %onebit, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_a1_indexzext(i32 %val, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_a1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_a1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_a1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_a1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_a1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_a1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%conv = zext i8 %numlowbits to i32
%onebit = shl i32 1, %conv
%mask = add nsw i32 %onebit, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_a2_load(ptr %w, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_a2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl (%edx), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_a2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: shll $8, %ecx
; X86-BMI1-NEXT: bextrl %ecx, (%eax), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_a2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: bzhil %ecx, (%eax), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_a2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl (%rdi), %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_a2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, (%rdi), %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_a2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%onebit = shl i32 1, %numlowbits
%mask = add nsw i32 %onebit, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_a3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_a3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl (%edx), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_a3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: shll $8, %ecx
; X86-BMI1-NEXT: bextrl %ecx, (%eax), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_a3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: bzhil %ecx, (%eax), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_a3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl (%rdi), %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_a3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, (%rdi), %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_a3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%conv = zext i8 %numlowbits to i32
%onebit = shl i32 1, %conv
%mask = add nsw i32 %onebit, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_a4_commutative(i32 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_a4_commutative:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_a4_commutative:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_a4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_a4_commutative:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_a4_commutative:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_a4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%onebit = shl i32 1, %numlowbits
%mask = add nsw i32 %onebit, -1
%masked = and i32 %val, %mask ; swapped order
ret i32 %masked
}
; 64-bit
define i64 @bzhi64_a0(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_a0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: shldl %cl, %eax, %edx
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB5_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: .LBB5_2:
; X86-NOBMI-NEXT: addl $-1, %eax
; X86-NOBMI-NEXT: adcl $-1, %edx
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_a0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $1, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: shldl %cl, %eax, %edx
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB5_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB5_2:
; X86-BMI1-NEXT: addl $-1, %eax
; X86-BMI1-NEXT: adcl $-1, %edx
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_a0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl $1, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: shldl %cl, %eax, %edx
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB5_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB5_2:
; X86-BMI2-NEXT: addl $-1, %eax
; X86-BMI2-NEXT: adcl $-1, %edx
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_a0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: decq %rax
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_a0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_a0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%onebit = shl i64 1, %numlowbits
%mask = add nsw i64 %onebit, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_a1_indexzext(i64 %val, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_a1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: shldl %cl, %eax, %edx
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB6_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: .LBB6_2:
; X86-NOBMI-NEXT: addl $-1, %eax
; X86-NOBMI-NEXT: adcl $-1, %edx
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_a1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $1, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: shldl %cl, %eax, %edx
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB6_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB6_2:
; X86-BMI1-NEXT: addl $-1, %eax
; X86-BMI1-NEXT: adcl $-1, %edx
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_a1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl $1, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: shldl %cl, %eax, %edx
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB6_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB6_2:
; X86-BMI2-NEXT: addl $-1, %eax
; X86-BMI2-NEXT: adcl $-1, %edx
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_a1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: decq %rax
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_a1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_a1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%conv = zext i8 %numlowbits to i64
%onebit = shl i64 1, %conv
%mask = add nsw i64 %onebit, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_a2_load(ptr %w, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_a2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: shldl %cl, %eax, %edx
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB7_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: .LBB7_2:
; X86-NOBMI-NEXT: addl $-1, %eax
; X86-NOBMI-NEXT: adcl $-1, %edx
; X86-NOBMI-NEXT: andl 4(%esi), %edx
; X86-NOBMI-NEXT: andl (%esi), %eax
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_a2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $1, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: shldl %cl, %eax, %edx
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB7_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB7_2:
; X86-BMI1-NEXT: addl $-1, %eax
; X86-BMI1-NEXT: adcl $-1, %edx
; X86-BMI1-NEXT: andl 4(%esi), %edx
; X86-BMI1-NEXT: andl (%esi), %eax
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_a2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl $1, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: shldl %cl, %eax, %edx
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB7_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB7_2:
; X86-BMI2-NEXT: addl $-1, %eax
; X86-BMI2-NEXT: adcl $-1, %edx
; X86-BMI2-NEXT: andl 4(%esi), %edx
; X86-BMI2-NEXT: andl (%esi), %eax
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_a2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: decq %rax
; X64-NOBMI-NEXT: andq (%rdi), %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_a2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, (%rdi), %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_a2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%onebit = shl i64 1, %numlowbits
%mask = add nsw i64 %onebit, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_a3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_a3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: shldl %cl, %eax, %edx
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB8_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: .LBB8_2:
; X86-NOBMI-NEXT: addl $-1, %eax
; X86-NOBMI-NEXT: adcl $-1, %edx
; X86-NOBMI-NEXT: andl 4(%esi), %edx
; X86-NOBMI-NEXT: andl (%esi), %eax
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_a3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $1, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: shldl %cl, %eax, %edx
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB8_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB8_2:
; X86-BMI1-NEXT: addl $-1, %eax
; X86-BMI1-NEXT: adcl $-1, %edx
; X86-BMI1-NEXT: andl 4(%esi), %edx
; X86-BMI1-NEXT: andl (%esi), %eax
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_a3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl $1, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: shldl %cl, %eax, %edx
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB8_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB8_2:
; X86-BMI2-NEXT: addl $-1, %eax
; X86-BMI2-NEXT: adcl $-1, %edx
; X86-BMI2-NEXT: andl 4(%esi), %edx
; X86-BMI2-NEXT: andl (%esi), %eax
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_a3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: decq %rax
; X64-NOBMI-NEXT: andq (%rdi), %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_a3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, (%rdi), %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_a3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%conv = zext i8 %numlowbits to i64
%onebit = shl i64 1, %conv
%mask = add nsw i64 %onebit, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_a4_commutative(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_a4_commutative:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: shldl %cl, %eax, %edx
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB9_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: .LBB9_2:
; X86-NOBMI-NEXT: addl $-1, %eax
; X86-NOBMI-NEXT: adcl $-1, %edx
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_a4_commutative:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $1, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: shldl %cl, %eax, %edx
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB9_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB9_2:
; X86-BMI1-NEXT: addl $-1, %eax
; X86-BMI1-NEXT: adcl $-1, %edx
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_a4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl $1, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: shldl %cl, %eax, %edx
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB9_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB9_2:
; X86-BMI2-NEXT: addl $-1, %eax
; X86-BMI2-NEXT: adcl $-1, %edx
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_a4_commutative:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: decq %rax
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_a4_commutative:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_a4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%onebit = shl i64 1, %numlowbits
%mask = add nsw i64 %onebit, -1
%masked = and i64 %val, %mask ; swapped order
ret i64 %masked
}
; 64-bit, but with 32-bit output
; Everything done in 64-bit, truncation happens last.
define i32 @bzhi64_32_a0(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_a0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %edx
; X86-NOBMI-NEXT: shll %cl, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB10_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: .LBB10_2:
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_a0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $1, %edx
; X86-BMI1-NEXT: shll %cl, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB10_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %edx, %eax
; X86-BMI1-NEXT: .LBB10_2:
; X86-BMI1-NEXT: decl %eax
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_a0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: jne .LBB10_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl $1, %eax
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: .LBB10_2:
; X86-BMI2-NEXT: decl %eax
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_a0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_a0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_a0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%onebit = shl i64 1, %numlowbits
%mask = add nsw i64 %onebit, -1
%masked = and i64 %mask, %val
%res = trunc i64 %masked to i32
ret i32 %res
}
; Shifting happens in 64-bit, then truncation. Masking is 32-bit.
define i32 @bzhi64_32_a1(i64 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_a1:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_a1:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_a1:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_a1:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_a1:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_a1:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%truncval = trunc i64 %val to i32
%onebit = shl i32 1, %numlowbits
%mask = add nsw i32 %onebit, -1
%masked = and i32 %mask, %truncval
ret i32 %masked
}
; Shifting happens in 64-bit, then truncation (with extra use).
; Masking is 32-bit.
define i32 @bzhi64_32_a1_trunc_extrause(i64 %val, i32 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_a1_trunc_extrause:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movl %edx, (%eax)
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl %edx, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_a1_trunc_extrause:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: movl %ecx, (%edx)
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, %ecx, %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_a1_trunc_extrause:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: movl %ecx, (%edx)
; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_a1_trunc_extrause:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl %edi, (%rdx)
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_a1_trunc_extrause:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %edi, (%rdx)
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_a1_trunc_extrause:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movl %edi, (%rdx)
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%truncval = trunc i64 %val to i32
store i32 %truncval, ptr %escape
%onebit = shl i32 1, %numlowbits
%mask = add nsw i32 %onebit, -1
%masked = and i32 %mask, %truncval
ret i32 %masked
}
; Shifting happens in 64-bit. Mask is 32-bit, but extended to 64-bit.
; Masking is 64-bit. Then truncation.
define i32 @bzhi64_32_a2(i64 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_a2:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_a2:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_a2:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_a2:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_a2:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_a2:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%onebit = shl i32 1, %numlowbits
%mask = add nsw i32 %onebit, -1
%zextmask = zext i32 %mask to i64
%masked = and i64 %zextmask, %val
%truncmasked = trunc i64 %masked to i32
ret i32 %truncmasked
}
; Shifting happens in 64-bit. Mask is 32-bit, but calculated in 64-bit.
; Masking is 64-bit. Then truncation.
define i32 @bzhi64_32_a3(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_a3:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $1, %edx
; X86-NOBMI-NEXT: shll %cl, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB14_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: .LBB14_2:
; X86-NOBMI-NEXT: decl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_a3:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $1, %edx
; X86-BMI1-NEXT: shll %cl, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB14_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %edx, %eax
; X86-BMI1-NEXT: .LBB14_2:
; X86-BMI1-NEXT: decl %eax
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_a3:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: jne .LBB14_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl $1, %eax
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: .LBB14_2:
; X86-BMI2-NEXT: decl %eax
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_a3:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movl $1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: decl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_a3:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_a3:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%onebit = shl i64 1, %numlowbits
%mask = add nsw i64 %onebit, 4294967295
%masked = and i64 %mask, %val
%truncmasked = trunc i64 %masked to i32
ret i32 %truncmasked
}
; ---------------------------------------------------------------------------- ;
; Pattern b. 32-bit
; ---------------------------------------------------------------------------- ;
define i32 @bzhi32_b0(i32 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_b0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_b0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_b0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_b0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_b0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_b0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%notmask = shl i32 -1, %numlowbits
%mask = xor i32 %notmask, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_b1_indexzext(i32 %val, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_b1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_b1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_b1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_b1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_b1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_b1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%conv = zext i8 %numlowbits to i32
%notmask = shl i32 -1, %conv
%mask = xor i32 %notmask, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_b2_load(ptr %w, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_b2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl (%edx), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_b2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: shll $8, %ecx
; X86-BMI1-NEXT: bextrl %ecx, (%eax), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_b2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: bzhil %ecx, (%eax), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_b2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl (%rdi), %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_b2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, (%rdi), %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_b2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%notmask = shl i32 -1, %numlowbits
%mask = xor i32 %notmask, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_b3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_b3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl (%edx), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_b3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: shll $8, %ecx
; X86-BMI1-NEXT: bextrl %ecx, (%eax), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_b3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: bzhil %ecx, (%eax), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_b3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl (%rdi), %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_b3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, (%rdi), %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_b3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%conv = zext i8 %numlowbits to i32
%notmask = shl i32 -1, %conv
%mask = xor i32 %notmask, -1
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_b4_commutative(i32 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_b4_commutative:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_b4_commutative:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_b4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_b4_commutative:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_b4_commutative:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_b4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%notmask = shl i32 -1, %numlowbits
%mask = xor i32 %notmask, -1
%masked = and i32 %val, %mask ; swapped order
ret i32 %masked
}
; 64-bit
define i64 @bzhi64_b0(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_b0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: movl $-1, %esi
; X86-NOBMI-NEXT: shll %cl, %esi
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB20_1
; X86-NOBMI-NEXT: # %bb.2:
; X86-NOBMI-NEXT: movl %esi, %eax
; X86-NOBMI-NEXT: jmp .LBB20_3
; X86-NOBMI-NEXT: .LBB20_1:
; X86-NOBMI-NEXT: movl %esi, %edx
; X86-NOBMI-NEXT: .LBB20_3:
; X86-NOBMI-NEXT: notl %edx
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_b0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $-1, %edx
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB20_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB20_2:
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %eax, %eax
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %edx, %edx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_b0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: movl $-1, %ecx
; X86-BMI2-NEXT: shlxl %edx, %ecx, %eax
; X86-BMI2-NEXT: testb $32, %dl
; X86-BMI2-NEXT: je .LBB20_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %ecx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB20_2:
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %eax, %eax
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %ecx, %edx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_b0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: notq %rax
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_b0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_b0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%notmask = shl i64 -1, %numlowbits
%mask = xor i64 %notmask, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_b1_indexzext(i64 %val, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_b1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: movl $-1, %esi
; X86-NOBMI-NEXT: shll %cl, %esi
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB21_1
; X86-NOBMI-NEXT: # %bb.2:
; X86-NOBMI-NEXT: movl %esi, %eax
; X86-NOBMI-NEXT: jmp .LBB21_3
; X86-NOBMI-NEXT: .LBB21_1:
; X86-NOBMI-NEXT: movl %esi, %edx
; X86-NOBMI-NEXT: .LBB21_3:
; X86-NOBMI-NEXT: notl %edx
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_b1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $-1, %edx
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB21_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB21_2:
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %eax, %eax
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %edx, %edx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_b1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: movl $-1, %ecx
; X86-BMI2-NEXT: shlxl %edx, %ecx, %eax
; X86-BMI2-NEXT: testb $32, %dl
; X86-BMI2-NEXT: je .LBB21_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %ecx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB21_2:
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %eax, %eax
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %ecx, %edx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_b1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: notq %rax
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_b1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_b1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%conv = zext i8 %numlowbits to i64
%notmask = shl i64 -1, %conv
%mask = xor i64 %notmask, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_b2_load(ptr %w, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_b2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: movl $-1, %edi
; X86-NOBMI-NEXT: shll %cl, %edi
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB22_1
; X86-NOBMI-NEXT: # %bb.2:
; X86-NOBMI-NEXT: movl %edi, %eax
; X86-NOBMI-NEXT: jmp .LBB22_3
; X86-NOBMI-NEXT: .LBB22_1:
; X86-NOBMI-NEXT: movl %edi, %edx
; X86-NOBMI-NEXT: .LBB22_3:
; X86-NOBMI-NEXT: notl %edx
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl (%esi), %eax
; X86-NOBMI-NEXT: andl 4(%esi), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_b2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $-1, %esi
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB22_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %esi
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB22_2:
; X86-BMI1-NEXT: andnl (%edx), %eax, %eax
; X86-BMI1-NEXT: andnl 4(%edx), %esi, %edx
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_b2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %ebx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ebx
; X86-BMI2-NEXT: movl $-1, %edx
; X86-BMI2-NEXT: shlxl %ebx, %edx, %eax
; X86-BMI2-NEXT: testb $32, %bl
; X86-BMI2-NEXT: je .LBB22_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB22_2:
; X86-BMI2-NEXT: andnl (%ecx), %eax, %eax
; X86-BMI2-NEXT: andnl 4(%ecx), %edx, %edx
; X86-BMI2-NEXT: popl %ebx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_b2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: notq %rax
; X64-NOBMI-NEXT: andq (%rdi), %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_b2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, (%rdi), %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_b2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%notmask = shl i64 -1, %numlowbits
%mask = xor i64 %notmask, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_b3_load_indexzext(ptr %w, i8 zeroext %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_b3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: movl $-1, %edi
; X86-NOBMI-NEXT: shll %cl, %edi
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB23_1
; X86-NOBMI-NEXT: # %bb.2:
; X86-NOBMI-NEXT: movl %edi, %eax
; X86-NOBMI-NEXT: jmp .LBB23_3
; X86-NOBMI-NEXT: .LBB23_1:
; X86-NOBMI-NEXT: movl %edi, %edx
; X86-NOBMI-NEXT: .LBB23_3:
; X86-NOBMI-NEXT: notl %edx
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl (%esi), %eax
; X86-NOBMI-NEXT: andl 4(%esi), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_b3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $-1, %esi
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB23_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %esi
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB23_2:
; X86-BMI1-NEXT: andnl (%edx), %eax, %eax
; X86-BMI1-NEXT: andnl 4(%edx), %esi, %edx
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_b3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %ebx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ebx
; X86-BMI2-NEXT: movl $-1, %edx
; X86-BMI2-NEXT: shlxl %ebx, %edx, %eax
; X86-BMI2-NEXT: testb $32, %bl
; X86-BMI2-NEXT: je .LBB23_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB23_2:
; X86-BMI2-NEXT: andnl (%ecx), %eax, %eax
; X86-BMI2-NEXT: andnl 4(%ecx), %edx, %edx
; X86-BMI2-NEXT: popl %ebx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_b3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: notq %rax
; X64-NOBMI-NEXT: andq (%rdi), %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_b3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, (%rdi), %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_b3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%conv = zext i8 %numlowbits to i64
%notmask = shl i64 -1, %conv
%mask = xor i64 %notmask, -1
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_b4_commutative(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_b4_commutative:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: movl $-1, %esi
; X86-NOBMI-NEXT: shll %cl, %esi
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB24_1
; X86-NOBMI-NEXT: # %bb.2:
; X86-NOBMI-NEXT: movl %esi, %eax
; X86-NOBMI-NEXT: jmp .LBB24_3
; X86-NOBMI-NEXT: .LBB24_1:
; X86-NOBMI-NEXT: movl %esi, %edx
; X86-NOBMI-NEXT: .LBB24_3:
; X86-NOBMI-NEXT: notl %edx
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_b4_commutative:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $-1, %edx
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB24_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: xorl %eax, %eax
; X86-BMI1-NEXT: .LBB24_2:
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %eax, %eax
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %edx, %edx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_b4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: movl $-1, %ecx
; X86-BMI2-NEXT: shlxl %edx, %ecx, %eax
; X86-BMI2-NEXT: testb $32, %dl
; X86-BMI2-NEXT: je .LBB24_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %ecx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB24_2:
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %eax, %eax
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %ecx, %edx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_b4_commutative:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: notq %rax
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_b4_commutative:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_b4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%notmask = shl i64 -1, %numlowbits
%mask = xor i64 %notmask, -1
%masked = and i64 %val, %mask ; swapped order
ret i64 %masked
}
; 64-bit, but with 32-bit output
; Everything done in 64-bit, truncation happens last.
define i32 @bzhi64_32_b0(i64 %val, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_b0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: shll %cl, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB25_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: .LBB25_2:
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_b0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB25_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: .LBB25_2:
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %edx, %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_b0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: xorl %ecx, %ecx
; X86-BMI2-NEXT: testb $32, %al
; X86-BMI2-NEXT: jne .LBB25_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl $-1, %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx
; X86-BMI2-NEXT: .LBB25_2:
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %ecx, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_b0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_b0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_b0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%widenumlowbits = zext i8 %numlowbits to i64
%notmask = shl nsw i64 -1, %widenumlowbits
%mask = xor i64 %notmask, -1
%wideres = and i64 %val, %mask
%res = trunc i64 %wideres to i32
ret i32 %res
}
; Shifting happens in 64-bit, then truncation. Masking is 32-bit.
define i32 @bzhi64_32_b1(i64 %val, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_b1:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_b1:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_b1:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_b1:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_b1:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_b1:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%truncval = trunc i64 %val to i32
%widenumlowbits = zext i8 %numlowbits to i32
%notmask = shl nsw i32 -1, %widenumlowbits
%mask = xor i32 %notmask, -1
%res = and i32 %truncval, %mask
ret i32 %res
}
; Shifting happens in 64-bit. Mask is 32-bit, but extended to 64-bit.
; Masking is 64-bit. Then truncation.
define i32 @bzhi64_32_b2(i64 %val, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_b2:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_b2:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_b2:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_b2:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: notl %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_b2:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_b2:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%widenumlowbits = zext i8 %numlowbits to i32
%notmask = shl nsw i32 -1, %widenumlowbits
%mask = xor i32 %notmask, -1
%zextmask = zext i32 %mask to i64
%wideres = and i64 %val, %zextmask
%res = trunc i64 %wideres to i32
ret i32 %res
}
; Shifting happens in 64-bit. Mask is 32-bit, but calculated in 64-bit.
; Masking is 64-bit. Then truncation.
define i32 @bzhi64_32_b3(i64 %val, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_b3:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: shll %cl, %edx
; X86-NOBMI-NEXT: xorl %eax, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB28_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: .LBB28_2:
; X86-NOBMI-NEXT: notl %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_b3:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shll %cl, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB28_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: .LBB28_2:
; X86-BMI1-NEXT: andnl {{[0-9]+}}(%esp), %edx, %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_b3:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: xorl %ecx, %ecx
; X86-BMI2-NEXT: testb $32, %al
; X86-BMI2-NEXT: jne .LBB28_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl $-1, %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx
; X86-BMI2-NEXT: .LBB28_2:
; X86-BMI2-NEXT: andnl {{[0-9]+}}(%esp), %ecx, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_b3:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF
; X64-NOBMI-NEXT: movl $4294967295, %edx # imm = 0xFFFFFFFF
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shlq %cl, %rdx
; X64-NOBMI-NEXT: xorl %edx, %eax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_b3:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_b3:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%widenumlowbits = zext i8 %numlowbits to i64
%notmask = shl nsw i64 4294967295, %widenumlowbits
%mask = xor i64 %notmask, 4294967295
%wideres = and i64 %val, %mask
%res = trunc i64 %wideres to i32
ret i32 %res
}
; ---------------------------------------------------------------------------- ;
; Pattern c. 32-bit
; ---------------------------------------------------------------------------- ;
define i32 @bzhi32_c0(i32 %val, i32 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi32_c0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: movl %eax, (%edx)
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_c0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: xorl %ecx, %ecx
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: movl %eax, (%edx)
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_c0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: bzhil %edx, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: # kill: def $dl killed $dl killed $edx def $edx
; X86-BMI2-NEXT: negb %dl
; X86-BMI2-NEXT: movl $-1, %esi
; X86-BMI2-NEXT: shrxl %edx, %esi, %edx
; X86-BMI2-NEXT: movl %edx, (%ecx)
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_c0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: movl %eax, (%rdx)
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_c0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %esi, %ecx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movl $-1, %eax
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-BMI1-NEXT: shrl %cl, %eax
; X64-BMI1-NEXT: movl %eax, (%rdx)
; X64-BMI1-NEXT: andl %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_c0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $esi def $esi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movl $-1, %ecx
; X64-BMI2-NEXT: shrxl %esi, %ecx, %ecx
; X64-BMI2-NEXT: movl %ecx, (%rdx)
; X64-BMI2-NEXT: retq
%numhighbits = sub i32 32, %numlowbits
%mask = lshr i32 -1, %numhighbits
store i32 %mask, ptr %escape
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_c1_indexzext(i32 %val, i8 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi32_c1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: movl %eax, (%edx)
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_c1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: xorl %ecx, %ecx
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: movl %eax, (%edx)
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_c1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: bzhil %edx, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: # kill: def $dl killed $dl killed $edx def $edx
; X86-BMI2-NEXT: negb %dl
; X86-BMI2-NEXT: movl $-1, %esi
; X86-BMI2-NEXT: shrxl %edx, %esi, %edx
; X86-BMI2-NEXT: movl %edx, (%ecx)
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_c1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: movl %eax, (%rdx)
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_c1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %esi, %ecx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movl $-1, %eax
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-BMI1-NEXT: shrl %cl, %eax
; X64-BMI1-NEXT: movl %eax, (%rdx)
; X64-BMI1-NEXT: andl %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_c1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $esi def $esi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movl $-1, %ecx
; X64-BMI2-NEXT: shrxl %esi, %ecx, %ecx
; X64-BMI2-NEXT: movl %ecx, (%rdx)
; X64-BMI2-NEXT: retq
%numhighbits = sub i8 32, %numlowbits
%sh_prom = zext i8 %numhighbits to i32
%mask = lshr i32 -1, %sh_prom
store i32 %mask, ptr %escape
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_c2_load(ptr %w, i32 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi32_c2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %esi
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %esi
; X86-NOBMI-NEXT: movl (%eax), %eax
; X86-NOBMI-NEXT: andl %esi, %eax
; X86-NOBMI-NEXT: movl %esi, (%edx)
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_c2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: xorl %ecx, %ecx
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %esi
; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-BMI1-NEXT: shrl %cl, %esi
; X86-BMI1-NEXT: movl (%eax), %eax
; X86-BMI1-NEXT: andl %esi, %eax
; X86-BMI1-NEXT: movl %esi, (%edx)
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_c2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: bzhil %edx, (%eax), %eax
; X86-BMI2-NEXT: # kill: def $dl killed $dl killed $edx def $edx
; X86-BMI2-NEXT: negb %dl
; X86-BMI2-NEXT: movl $-1, %esi
; X86-BMI2-NEXT: shrxl %edx, %esi, %edx
; X86-BMI2-NEXT: movl %edx, (%ecx)
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_c2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movl $-1, %esi
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %esi
; X64-NOBMI-NEXT: movl (%rdi), %eax
; X64-NOBMI-NEXT: andl %esi, %eax
; X64-NOBMI-NEXT: movl %esi, (%rdx)
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_c2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %esi, %ecx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movl $-1, %esi
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-BMI1-NEXT: shrl %cl, %esi
; X64-BMI1-NEXT: movl (%rdi), %eax
; X64-BMI1-NEXT: andl %esi, %eax
; X64-BMI1-NEXT: movl %esi, (%rdx)
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_c2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $esi def $esi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movl $-1, %ecx
; X64-BMI2-NEXT: shrxl %esi, %ecx, %ecx
; X64-BMI2-NEXT: movl %ecx, (%rdx)
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%numhighbits = sub i32 32, %numlowbits
%mask = lshr i32 -1, %numhighbits
store i32 %mask, ptr %escape
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_c3_load_indexzext(ptr %w, i8 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi32_c3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %esi
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %esi
; X86-NOBMI-NEXT: movl (%eax), %eax
; X86-NOBMI-NEXT: andl %esi, %eax
; X86-NOBMI-NEXT: movl %esi, (%edx)
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_c3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: xorl %ecx, %ecx
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %esi
; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-BMI1-NEXT: shrl %cl, %esi
; X86-BMI1-NEXT: movl (%eax), %eax
; X86-BMI1-NEXT: andl %esi, %eax
; X86-BMI1-NEXT: movl %esi, (%edx)
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_c3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: bzhil %edx, (%eax), %eax
; X86-BMI2-NEXT: # kill: def $dl killed $dl killed $edx def $edx
; X86-BMI2-NEXT: negb %dl
; X86-BMI2-NEXT: movl $-1, %esi
; X86-BMI2-NEXT: shrxl %edx, %esi, %edx
; X86-BMI2-NEXT: movl %edx, (%ecx)
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_c3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movl $-1, %esi
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %esi
; X64-NOBMI-NEXT: movl (%rdi), %eax
; X64-NOBMI-NEXT: andl %esi, %eax
; X64-NOBMI-NEXT: movl %esi, (%rdx)
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_c3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %esi, %ecx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movl $-1, %esi
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-BMI1-NEXT: shrl %cl, %esi
; X64-BMI1-NEXT: movl (%rdi), %eax
; X64-BMI1-NEXT: andl %esi, %eax
; X64-BMI1-NEXT: movl %esi, (%rdx)
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_c3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $esi def $esi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movl $-1, %ecx
; X64-BMI2-NEXT: shrxl %esi, %ecx, %ecx
; X64-BMI2-NEXT: movl %ecx, (%rdx)
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%numhighbits = sub i8 32, %numlowbits
%sh_prom = zext i8 %numhighbits to i32
%mask = lshr i32 -1, %sh_prom
store i32 %mask, ptr %escape
%masked = and i32 %mask, %val
ret i32 %masked
}
define i32 @bzhi32_c4_commutative(i32 %val, i32 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi32_c4_commutative:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: movl %eax, (%edx)
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_c4_commutative:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: xorl %ecx, %ecx
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: movl %eax, (%edx)
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_c4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: bzhil %edx, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: # kill: def $dl killed $dl killed $edx def $edx
; X86-BMI2-NEXT: negb %dl
; X86-BMI2-NEXT: movl $-1, %esi
; X86-BMI2-NEXT: shrxl %edx, %esi, %edx
; X86-BMI2-NEXT: movl %edx, (%ecx)
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_c4_commutative:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movl $-1, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: movl %eax, (%rdx)
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_c4_commutative:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %esi, %ecx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movl $-1, %eax
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-BMI1-NEXT: shrl %cl, %eax
; X64-BMI1-NEXT: movl %eax, (%rdx)
; X64-BMI1-NEXT: andl %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_c4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $esi def $esi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movl $-1, %ecx
; X64-BMI2-NEXT: shrxl %esi, %ecx, %ecx
; X64-BMI2-NEXT: movl %ecx, (%rdx)
; X64-BMI2-NEXT: retq
%numhighbits = sub i32 32, %numlowbits
%mask = lshr i32 -1, %numhighbits
store i32 %mask, ptr %escape
%masked = and i32 %val, %mask ; swapped order
ret i32 %masked
}
; 64-bit
define i64 @bzhi64_c0(i64 %val, i64 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi64_c0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: shrl %cl, %edx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB34_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: .LBB34_2:
; X86-NOBMI-NEXT: movl %edx, 4(%esi)
; X86-NOBMI-NEXT: movl %eax, (%esi)
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_c0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: movl $-1, %edx
; X86-BMI1-NEXT: shrl %cl, %edx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB34_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %edx, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: .LBB34_2:
; X86-BMI1-NEXT: movl %edx, 4(%esi)
; X86-BMI1-NEXT: movl %eax, (%esi)
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_c0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %ebx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movb $64, %bl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %bl
; X86-BMI2-NEXT: movl $-1, %eax
; X86-BMI2-NEXT: shrxl %ebx, %eax, %edx
; X86-BMI2-NEXT: testb $32, %bl
; X86-BMI2-NEXT: je .LBB34_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edx, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: .LBB34_2:
; X86-BMI2-NEXT: movl %edx, 4(%ecx)
; X86-BMI2-NEXT: movl %eax, (%ecx)
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: popl %ebx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_c0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: movq %rax, (%rdx)
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_c0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movq %rsi, %rcx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movq $-1, %rax
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-BMI1-NEXT: shrq %cl, %rax
; X64-BMI1-NEXT: movq %rax, (%rdx)
; X64-BMI1-NEXT: andq %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_c0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $rsi def $rsi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movq $-1, %rcx
; X64-BMI2-NEXT: shrxq %rsi, %rcx, %rcx
; X64-BMI2-NEXT: movq %rcx, (%rdx)
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%mask = lshr i64 -1, %numhighbits
store i64 %mask, ptr %escape
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_c1_indexzext(i64 %val, i8 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi64_c1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: shrl %cl, %edx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB35_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: .LBB35_2:
; X86-NOBMI-NEXT: movl %edx, 4(%esi)
; X86-NOBMI-NEXT: movl %eax, (%esi)
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_c1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: movl $-1, %edx
; X86-BMI1-NEXT: shrl %cl, %edx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB35_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %edx, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: .LBB35_2:
; X86-BMI1-NEXT: movl %edx, 4(%esi)
; X86-BMI1-NEXT: movl %eax, (%esi)
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_c1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %ebx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movb $64, %bl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %bl
; X86-BMI2-NEXT: movl $-1, %eax
; X86-BMI2-NEXT: shrxl %ebx, %eax, %edx
; X86-BMI2-NEXT: testb $32, %bl
; X86-BMI2-NEXT: je .LBB35_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edx, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: .LBB35_2:
; X86-BMI2-NEXT: movl %edx, 4(%ecx)
; X86-BMI2-NEXT: movl %eax, (%ecx)
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: popl %ebx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_c1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: movq %rax, (%rdx)
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_c1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %esi, %ecx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movq $-1, %rax
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-BMI1-NEXT: shrq %cl, %rax
; X64-BMI1-NEXT: movq %rax, (%rdx)
; X64-BMI1-NEXT: andq %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_c1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $rsi def $rsi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movq $-1, %rcx
; X64-BMI2-NEXT: shrxq %rsi, %rcx, %rcx
; X64-BMI2-NEXT: movq %rcx, (%rdx)
; X64-BMI2-NEXT: retq
%numhighbits = sub i8 64, %numlowbits
%sh_prom = zext i8 %numhighbits to i64
%mask = lshr i64 -1, %sh_prom
store i64 %mask, ptr %escape
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_c2_load(ptr %w, i64 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi64_c2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %ebx
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %edi
; X86-NOBMI-NEXT: movl $-1, %ebx
; X86-NOBMI-NEXT: shrl %cl, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB36_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %ebx, %edi
; X86-NOBMI-NEXT: xorl %ebx, %ebx
; X86-NOBMI-NEXT: .LBB36_2:
; X86-NOBMI-NEXT: movl 4(%eax), %edx
; X86-NOBMI-NEXT: andl %ebx, %edx
; X86-NOBMI-NEXT: movl (%eax), %eax
; X86-NOBMI-NEXT: andl %edi, %eax
; X86-NOBMI-NEXT: movl %ebx, 4(%esi)
; X86-NOBMI-NEXT: movl %edi, (%esi)
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: popl %ebx
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_c2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %ebx
; X86-BMI1-NEXT: pushl %edi
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %edi
; X86-BMI1-NEXT: movl $-1, %ebx
; X86-BMI1-NEXT: shrl %cl, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB36_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %ebx, %edi
; X86-BMI1-NEXT: xorl %ebx, %ebx
; X86-BMI1-NEXT: .LBB36_2:
; X86-BMI1-NEXT: movl 4(%eax), %edx
; X86-BMI1-NEXT: andl %ebx, %edx
; X86-BMI1-NEXT: movl (%eax), %eax
; X86-BMI1-NEXT: andl %edi, %eax
; X86-BMI1-NEXT: movl %ebx, 4(%esi)
; X86-BMI1-NEXT: movl %edi, (%esi)
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: popl %edi
; X86-BMI1-NEXT: popl %ebx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_c2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %edi
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movb $64, %dl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %dl
; X86-BMI2-NEXT: movl $-1, %esi
; X86-BMI2-NEXT: shrxl %edx, %esi, %edi
; X86-BMI2-NEXT: testb $32, %dl
; X86-BMI2-NEXT: je .LBB36_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edi, %esi
; X86-BMI2-NEXT: xorl %edi, %edi
; X86-BMI2-NEXT: .LBB36_2:
; X86-BMI2-NEXT: movl 4(%eax), %edx
; X86-BMI2-NEXT: andl %edi, %edx
; X86-BMI2-NEXT: movl (%eax), %eax
; X86-BMI2-NEXT: andl %esi, %eax
; X86-BMI2-NEXT: movl %edi, 4(%ecx)
; X86-BMI2-NEXT: movl %esi, (%ecx)
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: popl %edi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_c2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movq $-1, %rsi
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rsi
; X64-NOBMI-NEXT: movq (%rdi), %rax
; X64-NOBMI-NEXT: andq %rsi, %rax
; X64-NOBMI-NEXT: movq %rsi, (%rdx)
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_c2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movq %rsi, %rcx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movq $-1, %rsi
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-BMI1-NEXT: shrq %cl, %rsi
; X64-BMI1-NEXT: movq (%rdi), %rax
; X64-BMI1-NEXT: andq %rsi, %rax
; X64-BMI1-NEXT: movq %rsi, (%rdx)
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_c2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $rsi def $rsi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movq $-1, %rcx
; X64-BMI2-NEXT: shrxq %rsi, %rcx, %rcx
; X64-BMI2-NEXT: movq %rcx, (%rdx)
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%numhighbits = sub i64 64, %numlowbits
%mask = lshr i64 -1, %numhighbits
store i64 %mask, ptr %escape
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_c3_load_indexzext(ptr %w, i8 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi64_c3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %ebx
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %edi
; X86-NOBMI-NEXT: movl $-1, %ebx
; X86-NOBMI-NEXT: shrl %cl, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB37_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %ebx, %edi
; X86-NOBMI-NEXT: xorl %ebx, %ebx
; X86-NOBMI-NEXT: .LBB37_2:
; X86-NOBMI-NEXT: movl 4(%eax), %edx
; X86-NOBMI-NEXT: andl %ebx, %edx
; X86-NOBMI-NEXT: movl (%eax), %eax
; X86-NOBMI-NEXT: andl %edi, %eax
; X86-NOBMI-NEXT: movl %ebx, 4(%esi)
; X86-NOBMI-NEXT: movl %edi, (%esi)
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: popl %ebx
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_c3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %ebx
; X86-BMI1-NEXT: pushl %edi
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %edi
; X86-BMI1-NEXT: movl $-1, %ebx
; X86-BMI1-NEXT: shrl %cl, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB37_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %ebx, %edi
; X86-BMI1-NEXT: xorl %ebx, %ebx
; X86-BMI1-NEXT: .LBB37_2:
; X86-BMI1-NEXT: movl 4(%eax), %edx
; X86-BMI1-NEXT: andl %ebx, %edx
; X86-BMI1-NEXT: movl (%eax), %eax
; X86-BMI1-NEXT: andl %edi, %eax
; X86-BMI1-NEXT: movl %ebx, 4(%esi)
; X86-BMI1-NEXT: movl %edi, (%esi)
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: popl %edi
; X86-BMI1-NEXT: popl %ebx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_c3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %edi
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movb $64, %dl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %dl
; X86-BMI2-NEXT: movl $-1, %esi
; X86-BMI2-NEXT: shrxl %edx, %esi, %edi
; X86-BMI2-NEXT: testb $32, %dl
; X86-BMI2-NEXT: je .LBB37_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edi, %esi
; X86-BMI2-NEXT: xorl %edi, %edi
; X86-BMI2-NEXT: .LBB37_2:
; X86-BMI2-NEXT: movl 4(%eax), %edx
; X86-BMI2-NEXT: andl %edi, %edx
; X86-BMI2-NEXT: movl (%eax), %eax
; X86-BMI2-NEXT: andl %esi, %eax
; X86-BMI2-NEXT: movl %edi, 4(%ecx)
; X86-BMI2-NEXT: movl %esi, (%ecx)
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: popl %edi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_c3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movq $-1, %rsi
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrq %cl, %rsi
; X64-NOBMI-NEXT: movq (%rdi), %rax
; X64-NOBMI-NEXT: andq %rsi, %rax
; X64-NOBMI-NEXT: movq %rsi, (%rdx)
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_c3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movl %esi, %ecx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movq $-1, %rsi
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-BMI1-NEXT: shrq %cl, %rsi
; X64-BMI1-NEXT: movq (%rdi), %rax
; X64-BMI1-NEXT: andq %rsi, %rax
; X64-BMI1-NEXT: movq %rsi, (%rdx)
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_c3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $rsi def $rsi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movq $-1, %rcx
; X64-BMI2-NEXT: shrxq %rsi, %rcx, %rcx
; X64-BMI2-NEXT: movq %rcx, (%rdx)
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%numhighbits = sub i8 64, %numlowbits
%sh_prom = zext i8 %numhighbits to i64
%mask = lshr i64 -1, %sh_prom
store i64 %mask, ptr %escape
%masked = and i64 %mask, %val
ret i64 %masked
}
define i64 @bzhi64_c4_commutative(i64 %val, i64 %numlowbits, ptr %escape) nounwind {
; X86-NOBMI-LABEL: bzhi64_c4_commutative:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: movl $-1, %edx
; X86-NOBMI-NEXT: shrl %cl, %edx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB38_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: .LBB38_2:
; X86-NOBMI-NEXT: movl %edx, 4(%esi)
; X86-NOBMI-NEXT: movl %eax, (%esi)
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_c4_commutative:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: movl $-1, %edx
; X86-BMI1-NEXT: shrl %cl, %edx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB38_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %edx, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: .LBB38_2:
; X86-BMI1-NEXT: movl %edx, 4(%esi)
; X86-BMI1-NEXT: movl %eax, (%esi)
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_c4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %ebx
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movb $64, %bl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %bl
; X86-BMI2-NEXT: movl $-1, %eax
; X86-BMI2-NEXT: shrxl %ebx, %eax, %edx
; X86-BMI2-NEXT: testb $32, %bl
; X86-BMI2-NEXT: je .LBB38_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edx, %eax
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: .LBB38_2:
; X86-BMI2-NEXT: movl %edx, 4(%ecx)
; X86-BMI2-NEXT: movl %eax, (%ecx)
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: popl %ebx
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_c4_commutative:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: movq %rax, (%rdx)
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_c4_commutative:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movq %rsi, %rcx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movq $-1, %rax
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-BMI1-NEXT: shrq %cl, %rax
; X64-BMI1-NEXT: movq %rax, (%rdx)
; X64-BMI1-NEXT: andq %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_c4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: # kill: def $sil killed $sil killed $rsi def $rsi
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movq $-1, %rcx
; X64-BMI2-NEXT: shrxq %rsi, %rcx, %rcx
; X64-BMI2-NEXT: movq %rcx, (%rdx)
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%mask = lshr i64 -1, %numhighbits
store i64 %mask, ptr %escape
%masked = and i64 %val, %mask ; swapped order
ret i64 %masked
}
; 64-bit, but with 32-bit output
; Everything done in 64-bit, truncation happens last.
define i32 @bzhi64_32_c0(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_c0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB39_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl $-1, %eax
; X86-NOBMI-NEXT: .LBB39_2:
; X86-NOBMI-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_c0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB39_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl $-1, %eax
; X86-BMI1-NEXT: .LBB39_2:
; X86-BMI1-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_c0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb $64, %cl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI2-NEXT: movl $-1, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB39_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
; X86-BMI2-NEXT: .LBB39_2:
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_c0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movq $-1, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_c0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_c0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%mask = lshr i64 -1, %numhighbits
%masked = and i64 %mask, %val
%res = trunc i64 %masked to i32
ret i32 %res
}
; Shifting happens in 64-bit, then truncation. Masking is 32-bit.
define i32 @bzhi64_32_c1(i64 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_c1:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_c1:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_c1:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_c1:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq %rdi, %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_c1:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_c1:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%truncval = trunc i64 %val to i32
%numhighbits = sub i32 32, %numlowbits
%mask = lshr i32 -1, %numhighbits
%masked = and i32 %mask, %truncval
ret i32 %masked
}
; Shifting happens in 64-bit. Mask is 32-bit, but extended to 64-bit.
; Masking is 64-bit. Then truncation.
define i32 @bzhi64_32_c2(i64 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_c2:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_c2:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_c2:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_c2:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq %rdi, %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_c2:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_c2:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i32 32, %numlowbits
%mask = lshr i32 -1, %numhighbits
%zextmask = zext i32 %mask to i64
%masked = and i64 %zextmask, %val
%truncmasked = trunc i64 %masked to i32
ret i32 %truncmasked
}
; Shifting happens in 64-bit. Mask is 32-bit, but calculated in 64-bit.
; Masking is 64-bit. Then truncation.
define i32 @bzhi64_32_c3(i64 %val, i64 %numlowbits) nounwind {
; X86-LABEL: bzhi64_32_c3:
; X86: # %bb.0:
; X86-NEXT: movb $64, %cl
; X86-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: movl $-1, %edx
; X86-NEXT: shrdl %cl, %eax, %edx
; X86-NEXT: testb $32, %cl
; X86-NEXT: jne .LBB42_2
; X86-NEXT: # %bb.1:
; X86-NEXT: movl %edx, %eax
; X86-NEXT: .LBB42_2:
; X86-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_c3:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: andl %edi, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_c3:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: movq %rsi, %rcx
; X64-BMI1-NEXT: negb %cl
; X64-BMI1-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF
; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-BMI1-NEXT: shrq %cl, %rax
; X64-BMI1-NEXT: andl %edi, %eax
; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_c3:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: negb %sil
; X64-BMI2-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: # kill: def $eax killed $eax killed $rax
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%mask = lshr i64 4294967295, %numhighbits
%masked = and i64 %mask, %val
%truncmasked = trunc i64 %masked to i32
ret i32 %truncmasked
}
; ---------------------------------------------------------------------------- ;
; Pattern d. 32-bit.
; ---------------------------------------------------------------------------- ;
define i32 @bzhi32_d0(i32 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_d0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_d0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_d0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_d0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl %edi, %eax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_d0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_d0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i32 32, %numlowbits
%highbitscleared = shl i32 %val, %numhighbits
%masked = lshr i32 %highbitscleared, %numhighbits
ret i32 %masked
}
define i32 @bzhi32_d1_indexzext(i32 %val, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_d1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_d1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_d1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_d1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl %edi, %eax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_d1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_d1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i8 32, %numlowbits
%sh_prom = zext i8 %numhighbits to i32
%highbitscleared = shl i32 %val, %sh_prom
%masked = lshr i32 %highbitscleared, %sh_prom
ret i32 %masked
}
define i32 @bzhi32_d2_load(ptr %w, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_d2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movl (%eax), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_d2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: shll $8, %ecx
; X86-BMI1-NEXT: bextrl %ecx, (%eax), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_d2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: bzhil %ecx, (%eax), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_d2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl (%rdi), %eax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_d2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, (%rdi), %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_d2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%numhighbits = sub i32 32, %numlowbits
%highbitscleared = shl i32 %val, %numhighbits
%masked = lshr i32 %highbitscleared, %numhighbits
ret i32 %masked
}
define i32 @bzhi32_d3_load_indexzext(ptr %w, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi32_d3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movl (%eax), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi32_d3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI1-NEXT: shll $8, %ecx
; X86-BMI1-NEXT: bextrl %ecx, (%eax), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi32_d3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: bzhil %ecx, (%eax), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi32_d3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movl (%rdi), %eax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi32_d3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, (%rdi), %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi32_d3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, ptr %w
%numhighbits = sub i8 32, %numlowbits
%sh_prom = zext i8 %numhighbits to i32
%highbitscleared = shl i32 %val, %sh_prom
%masked = lshr i32 %highbitscleared, %sh_prom
ret i32 %masked
}
; 64-bit.
define i64 @bzhi64_d0(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_d0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %ebx
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl %edx, %esi
; X86-NOBMI-NEXT: shll %cl, %esi
; X86-NOBMI-NEXT: shldl %cl, %edx, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl %esi, %edi
; X86-NOBMI-NEXT: jne .LBB47_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edi
; X86-NOBMI-NEXT: .LBB47_2:
; X86-NOBMI-NEXT: movl %edi, %eax
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: xorl %ebx, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl $0, %edx
; X86-NOBMI-NEXT: jne .LBB47_4
; X86-NOBMI-NEXT: # %bb.3:
; X86-NOBMI-NEXT: movl %esi, %ebx
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: .LBB47_4:
; X86-NOBMI-NEXT: shrdl %cl, %edi, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB47_6
; X86-NOBMI-NEXT: # %bb.5:
; X86-NOBMI-NEXT: movl %ebx, %eax
; X86-NOBMI-NEXT: .LBB47_6:
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: popl %ebx
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_d0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %ebx
; X86-BMI1-NEXT: pushl %edi
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl %edx, %esi
; X86-BMI1-NEXT: shll %cl, %esi
; X86-BMI1-NEXT: shldl %cl, %edx, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl %esi, %edi
; X86-BMI1-NEXT: jne .LBB47_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edi
; X86-BMI1-NEXT: .LBB47_2:
; X86-BMI1-NEXT: movl %edi, %eax
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: xorl %ebx, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl $0, %edx
; X86-BMI1-NEXT: jne .LBB47_4
; X86-BMI1-NEXT: # %bb.3:
; X86-BMI1-NEXT: movl %esi, %ebx
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: .LBB47_4:
; X86-BMI1-NEXT: shrdl %cl, %edi, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB47_6
; X86-BMI1-NEXT: # %bb.5:
; X86-BMI1-NEXT: movl %ebx, %eax
; X86-BMI1-NEXT: .LBB47_6:
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: popl %edi
; X86-BMI1-NEXT: popl %ebx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_d0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %edi
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI2-NEXT: movb $64, %cl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI2-NEXT: shldl %cl, %eax, %esi
; X86-BMI2-NEXT: shlxl %ecx, %eax, %edi
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB47_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edi, %esi
; X86-BMI2-NEXT: movl $0, %edi
; X86-BMI2-NEXT: .LBB47_2:
; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax
; X86-BMI2-NEXT: jne .LBB47_4
; X86-BMI2-NEXT: # %bb.3:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: .LBB47_4:
; X86-BMI2-NEXT: shrdl %cl, %esi, %edi
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: jne .LBB47_6
; X86-BMI2-NEXT: # %bb.5:
; X86-BMI2-NEXT: movl %edi, %eax
; X86-BMI2-NEXT: .LBB47_6:
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: popl %edi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_d0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movq %rdi, %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_d0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_d0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%highbitscleared = shl i64 %val, %numhighbits
%masked = lshr i64 %highbitscleared, %numhighbits
ret i64 %masked
}
define i64 @bzhi64_d1_indexzext(i64 %val, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_d1_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %ebx
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl %edx, %esi
; X86-NOBMI-NEXT: shll %cl, %esi
; X86-NOBMI-NEXT: shldl %cl, %edx, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl %esi, %edi
; X86-NOBMI-NEXT: jne .LBB48_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edi
; X86-NOBMI-NEXT: .LBB48_2:
; X86-NOBMI-NEXT: movl %edi, %eax
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: xorl %ebx, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl $0, %edx
; X86-NOBMI-NEXT: jne .LBB48_4
; X86-NOBMI-NEXT: # %bb.3:
; X86-NOBMI-NEXT: movl %esi, %ebx
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: .LBB48_4:
; X86-NOBMI-NEXT: shrdl %cl, %edi, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB48_6
; X86-NOBMI-NEXT: # %bb.5:
; X86-NOBMI-NEXT: movl %ebx, %eax
; X86-NOBMI-NEXT: .LBB48_6:
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: popl %ebx
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_d1_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %ebx
; X86-BMI1-NEXT: pushl %edi
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl %edx, %esi
; X86-BMI1-NEXT: shll %cl, %esi
; X86-BMI1-NEXT: shldl %cl, %edx, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl %esi, %edi
; X86-BMI1-NEXT: jne .LBB48_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edi
; X86-BMI1-NEXT: .LBB48_2:
; X86-BMI1-NEXT: movl %edi, %eax
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: xorl %ebx, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl $0, %edx
; X86-BMI1-NEXT: jne .LBB48_4
; X86-BMI1-NEXT: # %bb.3:
; X86-BMI1-NEXT: movl %esi, %ebx
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: .LBB48_4:
; X86-BMI1-NEXT: shrdl %cl, %edi, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB48_6
; X86-BMI1-NEXT: # %bb.5:
; X86-BMI1-NEXT: movl %ebx, %eax
; X86-BMI1-NEXT: .LBB48_6:
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: popl %edi
; X86-BMI1-NEXT: popl %ebx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_d1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %edi
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI2-NEXT: movb $64, %cl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI2-NEXT: shldl %cl, %eax, %esi
; X86-BMI2-NEXT: shlxl %ecx, %eax, %edi
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB48_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edi, %esi
; X86-BMI2-NEXT: movl $0, %edi
; X86-BMI2-NEXT: .LBB48_2:
; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax
; X86-BMI2-NEXT: jne .LBB48_4
; X86-BMI2-NEXT: # %bb.3:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: .LBB48_4:
; X86-BMI2-NEXT: shrdl %cl, %esi, %edi
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: jne .LBB48_6
; X86-BMI2-NEXT: # %bb.5:
; X86-BMI2-NEXT: movl %edi, %eax
; X86-BMI2-NEXT: .LBB48_6:
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: popl %edi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_d1_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq %rdi, %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_d1_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_d1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: retq
%numhighbits = sub i8 64, %numlowbits
%sh_prom = zext i8 %numhighbits to i64
%highbitscleared = shl i64 %val, %sh_prom
%masked = lshr i64 %highbitscleared, %sh_prom
ret i64 %masked
}
define i64 @bzhi64_d2_load(ptr %w, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_d2_load:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %ebx
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movl (%eax), %edx
; X86-NOBMI-NEXT: movl 4(%eax), %eax
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl %edx, %esi
; X86-NOBMI-NEXT: shll %cl, %esi
; X86-NOBMI-NEXT: shldl %cl, %edx, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl %esi, %edi
; X86-NOBMI-NEXT: jne .LBB49_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edi
; X86-NOBMI-NEXT: .LBB49_2:
; X86-NOBMI-NEXT: movl %edi, %eax
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: xorl %ebx, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl $0, %edx
; X86-NOBMI-NEXT: jne .LBB49_4
; X86-NOBMI-NEXT: # %bb.3:
; X86-NOBMI-NEXT: movl %esi, %ebx
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: .LBB49_4:
; X86-NOBMI-NEXT: shrdl %cl, %edi, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB49_6
; X86-NOBMI-NEXT: # %bb.5:
; X86-NOBMI-NEXT: movl %ebx, %eax
; X86-NOBMI-NEXT: .LBB49_6:
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: popl %ebx
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_d2_load:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %ebx
; X86-BMI1-NEXT: pushl %edi
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movl (%eax), %edx
; X86-BMI1-NEXT: movl 4(%eax), %eax
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl %edx, %esi
; X86-BMI1-NEXT: shll %cl, %esi
; X86-BMI1-NEXT: shldl %cl, %edx, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl %esi, %edi
; X86-BMI1-NEXT: jne .LBB49_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edi
; X86-BMI1-NEXT: .LBB49_2:
; X86-BMI1-NEXT: movl %edi, %eax
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: xorl %ebx, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl $0, %edx
; X86-BMI1-NEXT: jne .LBB49_4
; X86-BMI1-NEXT: # %bb.3:
; X86-BMI1-NEXT: movl %esi, %ebx
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: .LBB49_4:
; X86-BMI1-NEXT: shrdl %cl, %edi, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB49_6
; X86-BMI1-NEXT: # %bb.5:
; X86-BMI1-NEXT: movl %ebx, %eax
; X86-BMI1-NEXT: .LBB49_6:
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: popl %edi
; X86-BMI1-NEXT: popl %ebx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_d2_load:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %edi
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movl (%eax), %edx
; X86-BMI2-NEXT: movl 4(%eax), %esi
; X86-BMI2-NEXT: movb $64, %cl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI2-NEXT: shldl %cl, %edx, %esi
; X86-BMI2-NEXT: shlxl %ecx, %edx, %edi
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB49_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edi, %esi
; X86-BMI2-NEXT: movl $0, %edi
; X86-BMI2-NEXT: .LBB49_2:
; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax
; X86-BMI2-NEXT: jne .LBB49_4
; X86-BMI2-NEXT: # %bb.3:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: .LBB49_4:
; X86-BMI2-NEXT: shrdl %cl, %esi, %edi
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: jne .LBB49_6
; X86-BMI2-NEXT: # %bb.5:
; X86-BMI2-NEXT: movl %edi, %eax
; X86-BMI2-NEXT: .LBB49_6:
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: popl %edi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_d2_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movq (%rdi), %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_d2_load:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, (%rdi), %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_d2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%numhighbits = sub i64 64, %numlowbits
%highbitscleared = shl i64 %val, %numhighbits
%masked = lshr i64 %highbitscleared, %numhighbits
ret i64 %masked
}
define i64 @bzhi64_d3_load_indexzext(ptr %w, i8 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_d3_load_indexzext:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %ebx
; X86-NOBMI-NEXT: pushl %edi
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movl (%eax), %edx
; X86-NOBMI-NEXT: movl 4(%eax), %eax
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl %edx, %esi
; X86-NOBMI-NEXT: shll %cl, %esi
; X86-NOBMI-NEXT: shldl %cl, %edx, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl %esi, %edi
; X86-NOBMI-NEXT: jne .LBB50_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %eax, %edi
; X86-NOBMI-NEXT: .LBB50_2:
; X86-NOBMI-NEXT: movl %edi, %eax
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: xorl %ebx, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: movl $0, %edx
; X86-NOBMI-NEXT: jne .LBB50_4
; X86-NOBMI-NEXT: # %bb.3:
; X86-NOBMI-NEXT: movl %esi, %ebx
; X86-NOBMI-NEXT: movl %eax, %edx
; X86-NOBMI-NEXT: .LBB50_4:
; X86-NOBMI-NEXT: shrdl %cl, %edi, %ebx
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB50_6
; X86-NOBMI-NEXT: # %bb.5:
; X86-NOBMI-NEXT: movl %ebx, %eax
; X86-NOBMI-NEXT: .LBB50_6:
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: popl %edi
; X86-NOBMI-NEXT: popl %ebx
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_d3_load_indexzext:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %ebx
; X86-BMI1-NEXT: pushl %edi
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movl (%eax), %edx
; X86-BMI1-NEXT: movl 4(%eax), %eax
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl %edx, %esi
; X86-BMI1-NEXT: shll %cl, %esi
; X86-BMI1-NEXT: shldl %cl, %edx, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl %esi, %edi
; X86-BMI1-NEXT: jne .LBB50_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %eax, %edi
; X86-BMI1-NEXT: .LBB50_2:
; X86-BMI1-NEXT: movl %edi, %eax
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: xorl %ebx, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: movl $0, %edx
; X86-BMI1-NEXT: jne .LBB50_4
; X86-BMI1-NEXT: # %bb.3:
; X86-BMI1-NEXT: movl %esi, %ebx
; X86-BMI1-NEXT: movl %eax, %edx
; X86-BMI1-NEXT: .LBB50_4:
; X86-BMI1-NEXT: shrdl %cl, %edi, %ebx
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB50_6
; X86-BMI1-NEXT: # %bb.5:
; X86-BMI1-NEXT: movl %ebx, %eax
; X86-BMI1-NEXT: .LBB50_6:
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: popl %edi
; X86-BMI1-NEXT: popl %ebx
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_d3_load_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: pushl %edi
; X86-BMI2-NEXT: pushl %esi
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movl (%eax), %edx
; X86-BMI2-NEXT: movl 4(%eax), %esi
; X86-BMI2-NEXT: movb $64, %cl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI2-NEXT: shldl %cl, %edx, %esi
; X86-BMI2-NEXT: shlxl %ecx, %edx, %edi
; X86-BMI2-NEXT: xorl %edx, %edx
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB50_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %edi, %esi
; X86-BMI2-NEXT: movl $0, %edi
; X86-BMI2-NEXT: .LBB50_2:
; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax
; X86-BMI2-NEXT: jne .LBB50_4
; X86-BMI2-NEXT: # %bb.3:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: .LBB50_4:
; X86-BMI2-NEXT: shrdl %cl, %esi, %edi
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: jne .LBB50_6
; X86-BMI2-NEXT: # %bb.5:
; X86-BMI2-NEXT: movl %edi, %eax
; X86-BMI2-NEXT: .LBB50_6:
; X86-BMI2-NEXT: popl %esi
; X86-BMI2-NEXT: popl %edi
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_d3_load_indexzext:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq (%rdi), %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_d3_load_indexzext:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, (%rdi), %rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_d3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
; X64-BMI2-NEXT: bzhiq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, ptr %w
%numhighbits = sub i8 64, %numlowbits
%sh_prom = zext i8 %numhighbits to i64
%highbitscleared = shl i64 %val, %sh_prom
%masked = lshr i64 %highbitscleared, %sh_prom
ret i64 %masked
}
; 64-bit, but with 32-bit output
; Everything done in 64-bit, truncation happens last.
define i32 @bzhi64_32_d0(i64 %val, i64 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_d0:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: pushl %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: movb $64, %cl
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: movl %esi, %edx
; X86-NOBMI-NEXT: shll %cl, %edx
; X86-NOBMI-NEXT: shldl %cl, %esi, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: je .LBB51_2
; X86-NOBMI-NEXT: # %bb.1:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: xorl %edx, %edx
; X86-NOBMI-NEXT: .LBB51_2:
; X86-NOBMI-NEXT: shrdl %cl, %eax, %edx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: testb $32, %cl
; X86-NOBMI-NEXT: jne .LBB51_4
; X86-NOBMI-NEXT: # %bb.3:
; X86-NOBMI-NEXT: movl %edx, %eax
; X86-NOBMI-NEXT: .LBB51_4:
; X86-NOBMI-NEXT: popl %esi
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_d0:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: pushl %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: movb $64, %cl
; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI1-NEXT: movl %esi, %edx
; X86-BMI1-NEXT: shll %cl, %edx
; X86-BMI1-NEXT: shldl %cl, %esi, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: je .LBB51_2
; X86-BMI1-NEXT: # %bb.1:
; X86-BMI1-NEXT: movl %edx, %eax
; X86-BMI1-NEXT: xorl %edx, %edx
; X86-BMI1-NEXT: .LBB51_2:
; X86-BMI1-NEXT: shrdl %cl, %eax, %edx
; X86-BMI1-NEXT: shrl %cl, %eax
; X86-BMI1-NEXT: testb $32, %cl
; X86-BMI1-NEXT: jne .LBB51_4
; X86-BMI1-NEXT: # %bb.3:
; X86-BMI1-NEXT: movl %edx, %eax
; X86-BMI1-NEXT: .LBB51_4:
; X86-BMI1-NEXT: popl %esi
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_d0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-BMI2-NEXT: movb $64, %cl
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-BMI2-NEXT: shldl %cl, %eax, %edx
; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB51_2
; X86-BMI2-NEXT: # %bb.1:
; X86-BMI2-NEXT: movl %eax, %edx
; X86-BMI2-NEXT: xorl %eax, %eax
; X86-BMI2-NEXT: .LBB51_2:
; X86-BMI2-NEXT: shrdl %cl, %edx, %eax
; X86-BMI2-NEXT: testb $32, %cl
; X86-BMI2-NEXT: je .LBB51_4
; X86-BMI2-NEXT: # %bb.3:
; X86-BMI2-NEXT: shrxl %ecx, %edx, %eax
; X86-BMI2-NEXT: .LBB51_4:
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_d0:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movq %rsi, %rcx
; X64-NOBMI-NEXT: movq %rdi, %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shlq %cl, %rax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI-NEXT: shrq %cl, %rax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_d0:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrq %rsi, %rdi, %rax
; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_d0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhiq %rsi, %rdi, %rax
; X64-BMI2-NEXT: # kill: def $eax killed $eax killed $rax
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%highbitscleared = shl i64 %val, %numhighbits
%masked = lshr i64 %highbitscleared, %numhighbits
%res = trunc i64 %masked to i32
ret i32 %res
}
; Shifting happens in 64-bit, then truncation. Masking is 32-bit.
define i32 @bzhi64_32_d1(i64 %val, i32 %numlowbits) nounwind {
; X86-NOBMI-LABEL: bzhi64_32_d1:
; X86-NOBMI: # %bb.0:
; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI-NEXT: xorl %ecx, %ecx
; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
; X86-NOBMI-NEXT: shll %cl, %eax
; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI-NEXT: shrl %cl, %eax
; X86-NOBMI-NEXT: retl
;
; X86-BMI1-LABEL: bzhi64_32_d1:
; X86-BMI1: # %bb.0:
; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: shll $8, %eax
; X86-BMI1-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI1-NEXT: retl
;
; X86-BMI2-LABEL: bzhi64_32_d1:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_32_d1:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movl %esi, %ecx
; X64-NOBMI-NEXT: movq %rdi, %rax
; X64-NOBMI-NEXT: negb %cl
; X64-NOBMI-NEXT: shll %cl, %eax
; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI-NEXT: shrl %cl, %eax
; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1-LABEL: bzhi64_32_d1:
; X64-BMI1: # %bb.0:
; X64-BMI1-NEXT: shll $8, %esi
; X64-BMI1-NEXT: bextrl %esi, %edi, %eax
; X64-BMI1-NEXT: retq
;
; X64-BMI2-LABEL: bzhi64_32_d1:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: bzhil %esi, %edi, %eax
; X64-BMI2-NEXT: retq
%truncval = trunc i64 %val to i32
%numhighbits = sub i32 32, %numlowbits
%highbitscleared = shl i32 %truncval, %numhighbits
%masked = lshr i32 %highbitscleared, %numhighbits
ret i32 %masked
}
; ---------------------------------------------------------------------------- ;
; Constant mask
; ---------------------------------------------------------------------------- ;
; 32-bit
define i32 @bzhi32_constant_mask32(i32 %val) nounwind {
; X86-LABEL: bzhi32_constant_mask32:
; X86: # %bb.0:
; X86-NEXT: movl $2147483647, %eax # imm = 0x7FFFFFFF
; X86-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NEXT: retl
;
; X64-LABEL: bzhi32_constant_mask32:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: andl $2147483647, %eax # imm = 0x7FFFFFFF
; X64-NEXT: retq
%masked = and i32 %val, 2147483647
ret i32 %masked
}
define i32 @bzhi32_constant_mask32_load(ptr %val) nounwind {
; X86-LABEL: bzhi32_constant_mask32_load:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl $2147483647, %eax # imm = 0x7FFFFFFF
; X86-NEXT: andl (%ecx), %eax
; X86-NEXT: retl
;
; X64-LABEL: bzhi32_constant_mask32_load:
; X64: # %bb.0:
; X64-NEXT: movl $2147483647, %eax # imm = 0x7FFFFFFF
; X64-NEXT: andl (%rdi), %eax
; X64-NEXT: retq
%val1 = load i32, ptr %val
%masked = and i32 %val1, 2147483647
ret i32 %masked
}
define i32 @bzhi32_constant_mask16(i32 %val) nounwind {
; X86-LABEL: bzhi32_constant_mask16:
; X86: # %bb.0:
; X86-NEXT: movl $32767, %eax # imm = 0x7FFF
; X86-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NEXT: retl
;
; X64-LABEL: bzhi32_constant_mask16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: andl $32767, %eax # imm = 0x7FFF
; X64-NEXT: retq
%masked = and i32 %val, 32767
ret i32 %masked
}
define i32 @bzhi32_constant_mask16_load(ptr %val) nounwind {
; X86-LABEL: bzhi32_constant_mask16_load:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl $32767, %eax # imm = 0x7FFF
; X86-NEXT: andl (%ecx), %eax
; X86-NEXT: retl
;
; X64-LABEL: bzhi32_constant_mask16_load:
; X64: # %bb.0:
; X64-NEXT: movl $32767, %eax # imm = 0x7FFF
; X64-NEXT: andl (%rdi), %eax
; X64-NEXT: retq
%val1 = load i32, ptr %val
%masked = and i32 %val1, 32767
ret i32 %masked
}
define i32 @bzhi32_constant_mask8(i32 %val) nounwind {
; X86-LABEL: bzhi32_constant_mask8:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: andl $127, %eax
; X86-NEXT: retl
;
; X64-LABEL: bzhi32_constant_mask8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: andl $127, %eax
; X64-NEXT: retq
%masked = and i32 %val, 127
ret i32 %masked
}
define i32 @bzhi32_constant_mask8_load(ptr %val) nounwind {
; X86-LABEL: bzhi32_constant_mask8_load:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl (%eax), %eax
; X86-NEXT: andl $127, %eax
; X86-NEXT: retl
;
; X64-LABEL: bzhi32_constant_mask8_load:
; X64: # %bb.0:
; X64-NEXT: movl (%rdi), %eax
; X64-NEXT: andl $127, %eax
; X64-NEXT: retq
%val1 = load i32, ptr %val
%masked = and i32 %val1, 127
ret i32 %masked
}
; 64-bit
define i64 @bzhi64_constant_mask64(i64 %val) nounwind {
; X86-LABEL: bzhi64_constant_mask64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl $1073741823, %edx # imm = 0x3FFFFFFF
; X86-NEXT: andl {{[0-9]+}}(%esp), %edx
; X86-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_constant_mask64:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movabsq $4611686018427387903, %rax # imm = 0x3FFFFFFFFFFFFFFF
; X64-NOBMI-NEXT: andq %rdi, %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1NOTBM-LABEL: bzhi64_constant_mask64:
; X64-BMI1NOTBM: # %bb.0:
; X64-BMI1NOTBM-NEXT: movl $15872, %eax # imm = 0x3E00
; X64-BMI1NOTBM-NEXT: bextrq %rax, %rdi, %rax
; X64-BMI1NOTBM-NEXT: retq
;
; X64-BMI1TBM-LABEL: bzhi64_constant_mask64:
; X64-BMI1TBM: # %bb.0:
; X64-BMI1TBM-NEXT: bextrq $15872, %rdi, %rax # imm = 0x3E00
; X64-BMI1TBM-NEXT: retq
;
; X64-BMI2TBM-LABEL: bzhi64_constant_mask64:
; X64-BMI2TBM: # %bb.0:
; X64-BMI2TBM-NEXT: bextrq $15872, %rdi, %rax # imm = 0x3E00
; X64-BMI2TBM-NEXT: retq
;
; X64-BMI2NOTBM-LABEL: bzhi64_constant_mask64:
; X64-BMI2NOTBM: # %bb.0:
; X64-BMI2NOTBM-NEXT: movb $62, %al
; X64-BMI2NOTBM-NEXT: bzhiq %rax, %rdi, %rax
; X64-BMI2NOTBM-NEXT: retq
%masked = and i64 %val, 4611686018427387903
ret i64 %masked
}
define i64 @bzhi64_constant_mask64_load(ptr %val) nounwind {
; X86-LABEL: bzhi64_constant_mask64_load:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl (%ecx), %eax
; X86-NEXT: movl $1073741823, %edx # imm = 0x3FFFFFFF
; X86-NEXT: andl 4(%ecx), %edx
; X86-NEXT: retl
;
; X64-NOBMI-LABEL: bzhi64_constant_mask64_load:
; X64-NOBMI: # %bb.0:
; X64-NOBMI-NEXT: movabsq $4611686018427387903, %rax # imm = 0x3FFFFFFFFFFFFFFF
; X64-NOBMI-NEXT: andq (%rdi), %rax
; X64-NOBMI-NEXT: retq
;
; X64-BMI1NOTBM-LABEL: bzhi64_constant_mask64_load:
; X64-BMI1NOTBM: # %bb.0:
; X64-BMI1NOTBM-NEXT: movl $15872, %eax # imm = 0x3E00
; X64-BMI1NOTBM-NEXT: bextrq %rax, (%rdi), %rax
; X64-BMI1NOTBM-NEXT: retq
;
; X64-BMI1TBM-LABEL: bzhi64_constant_mask64_load:
; X64-BMI1TBM: # %bb.0:
; X64-BMI1TBM-NEXT: bextrq $15872, (%rdi), %rax # imm = 0x3E00
; X64-BMI1TBM-NEXT: retq
;
; X64-BMI2TBM-LABEL: bzhi64_constant_mask64_load:
; X64-BMI2TBM: # %bb.0:
; X64-BMI2TBM-NEXT: bextrq $15872, (%rdi), %rax # imm = 0x3E00
; X64-BMI2TBM-NEXT: retq
;
; X64-BMI2NOTBM-LABEL: bzhi64_constant_mask64_load:
; X64-BMI2NOTBM: # %bb.0:
; X64-BMI2NOTBM-NEXT: movb $62, %al
; X64-BMI2NOTBM-NEXT: bzhiq %rax, (%rdi), %rax
; X64-BMI2NOTBM-NEXT: retq
%val1 = load i64, ptr %val
%masked = and i64 %val1, 4611686018427387903
ret i64 %masked
}
define i64 @bzhi64_constant_mask32(i64 %val) nounwind {
; X86-LABEL: bzhi64_constant_mask32:
; X86: # %bb.0:
; X86-NEXT: movl $2147483647, %eax # imm = 0x7FFFFFFF
; X86-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: retl
;
; X64-LABEL: bzhi64_constant_mask32:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: andl $2147483647, %eax # imm = 0x7FFFFFFF
; X64-NEXT: retq
%masked = and i64 %val, 2147483647
ret i64 %masked
}
define i64 @bzhi64_constant_mask32_load(ptr %val) nounwind {
; X86-LABEL: bzhi64_constant_mask32_load:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl $2147483647, %eax # imm = 0x7FFFFFFF
; X86-NEXT: andl (%ecx), %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: retl
;
; X64-LABEL: bzhi64_constant_mask32_load:
; X64: # %bb.0:
; X64-NEXT: movq (%rdi), %rax
; X64-NEXT: andl $2147483647, %eax # imm = 0x7FFFFFFF
; X64-NEXT: retq
%val1 = load i64, ptr %val
%masked = and i64 %val1, 2147483647
ret i64 %masked
}
define i64 @bzhi64_constant_mask16(i64 %val) nounwind {
; X86-LABEL: bzhi64_constant_mask16:
; X86: # %bb.0:
; X86-NEXT: movl $32767, %eax # imm = 0x7FFF
; X86-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: retl
;
; X64-LABEL: bzhi64_constant_mask16:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: andl $32767, %eax # imm = 0x7FFF
; X64-NEXT: retq
%masked = and i64 %val, 32767
ret i64 %masked
}
define i64 @bzhi64_constant_mask16_load(ptr %val) nounwind {
; X86-LABEL: bzhi64_constant_mask16_load:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl $32767, %eax # imm = 0x7FFF
; X86-NEXT: andl (%ecx), %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: retl
;
; X64-LABEL: bzhi64_constant_mask16_load:
; X64: # %bb.0:
; X64-NEXT: movq (%rdi), %rax
; X64-NEXT: andl $32767, %eax # imm = 0x7FFF
; X64-NEXT: retq
%val1 = load i64, ptr %val
%masked = and i64 %val1, 32767
ret i64 %masked
}
define i64 @bzhi64_constant_mask8(i64 %val) nounwind {
; X86-LABEL: bzhi64_constant_mask8:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: andl $127, %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: retl
;
; X64-LABEL: bzhi64_constant_mask8:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: andl $127, %eax
; X64-NEXT: retq
%masked = and i64 %val, 127
ret i64 %masked
}
define i64 @bzhi64_constant_mask8_load(ptr %val) nounwind {
; X86-LABEL: bzhi64_constant_mask8_load:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl (%eax), %eax
; X86-NEXT: andl $127, %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: retl
;
; X64-LABEL: bzhi64_constant_mask8_load:
; X64: # %bb.0:
; X64-NEXT: movq (%rdi), %rax
; X64-NEXT: andl $127, %eax
; X64-NEXT: retq
%val1 = load i64, ptr %val
%masked = and i64 %val1, 127
ret i64 %masked
}