; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-linux | FileCheck %s --check-prefixes=X86
; RUN: llc < %s -mtriple=x86_64-unknown-linux | FileCheck %s --check-prefixes=X64
define i64 @rotl64(i64 %A, i8 %Amt) nounwind {
; X86-LABEL: rotl64:
; X86: # %bb.0:
; X86-NEXT: pushl %ebx
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
; X86-NEXT: movl %esi, %eax
; X86-NEXT: shll %cl, %eax
; X86-NEXT: movl %edi, %edx
; X86-NEXT: shldl %cl, %esi, %edx
; X86-NEXT: testb $32, %cl
; X86-NEXT: je .LBB0_2
; X86-NEXT: # %bb.1:
; X86-NEXT: movl %eax, %edx
; X86-NEXT: xorl %eax, %eax
; X86-NEXT: .LBB0_2:
; X86-NEXT: movb $64, %ch
; X86-NEXT: subb %cl, %ch
; X86-NEXT: movl %edi, %ebx
; X86-NEXT: movb %ch, %cl
; X86-NEXT: shrl %cl, %ebx
; X86-NEXT: shrdl %cl, %edi, %esi
; X86-NEXT: testb $32, %ch
; X86-NEXT: je .LBB0_4
; X86-NEXT: # %bb.3:
; X86-NEXT: movl %ebx, %esi
; X86-NEXT: xorl %ebx, %ebx
; X86-NEXT: .LBB0_4:
; X86-NEXT: orl %ebx, %edx
; X86-NEXT: orl %esi, %eax
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: popl %ebx
; X86-NEXT: retl
;
; X64-LABEL: rotl64:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rolq %cl, %rax
; X64-NEXT: retq
%shift.upgrd.1 = zext i8 %Amt to i64
%B = shl i64 %A, %shift.upgrd.1
%Amt2 = sub i8 64, %Amt
%shift.upgrd.2 = zext i8 %Amt2 to i64
%C = lshr i64 %A, %shift.upgrd.2
%D = or i64 %B, %C
ret i64 %D
}
define i64 @rotr64(i64 %A, i8 %Amt) nounwind {
; X86-LABEL: rotr64:
; X86: # %bb.0:
; X86-NEXT: pushl %ebx
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl %esi, %edx
; X86-NEXT: shrl %cl, %edx
; X86-NEXT: movl %edi, %eax
; X86-NEXT: shrdl %cl, %esi, %eax
; X86-NEXT: testb $32, %cl
; X86-NEXT: je .LBB1_2
; X86-NEXT: # %bb.1:
; X86-NEXT: movl %edx, %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: .LBB1_2:
; X86-NEXT: movb $64, %ch
; X86-NEXT: subb %cl, %ch
; X86-NEXT: movl %edi, %ebx
; X86-NEXT: movb %ch, %cl
; X86-NEXT: shll %cl, %ebx
; X86-NEXT: shldl %cl, %edi, %esi
; X86-NEXT: testb $32, %ch
; X86-NEXT: je .LBB1_4
; X86-NEXT: # %bb.3:
; X86-NEXT: movl %ebx, %esi
; X86-NEXT: xorl %ebx, %ebx
; X86-NEXT: .LBB1_4:
; X86-NEXT: orl %esi, %edx
; X86-NEXT: orl %ebx, %eax
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: popl %ebx
; X86-NEXT: retl
;
; X64-LABEL: rotr64:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rorq %cl, %rax
; X64-NEXT: retq
%shift.upgrd.3 = zext i8 %Amt to i64
%B = lshr i64 %A, %shift.upgrd.3
%Amt2 = sub i8 64, %Amt
%shift.upgrd.4 = zext i8 %Amt2 to i64
%C = shl i64 %A, %shift.upgrd.4
%D = or i64 %B, %C
ret i64 %D
}
define i64 @rotli64(i64 %A) nounwind {
; X86-LABEL: rotli64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl %ecx, %eax
; X86-NEXT: shldl $5, %edx, %eax
; X86-NEXT: shldl $5, %ecx, %edx
; X86-NEXT: retl
;
; X64-LABEL: rotli64:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: rolq $5, %rax
; X64-NEXT: retq
%B = shl i64 %A, 5
%C = lshr i64 %A, 59
%D = or i64 %B, %C
ret i64 %D
}
define i64 @rotri64(i64 %A) nounwind {
; X86-LABEL: rotri64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl %ecx, %eax
; X86-NEXT: shldl $27, %edx, %eax
; X86-NEXT: shldl $27, %ecx, %edx
; X86-NEXT: retl
;
; X64-LABEL: rotri64:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: rolq $59, %rax
; X64-NEXT: retq
%B = lshr i64 %A, 5
%C = shl i64 %A, 59
%D = or i64 %B, %C
ret i64 %D
}
define i64 @rotl1_64(i64 %A) nounwind {
; X86-LABEL: rotl1_64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl %ecx, %eax
; X86-NEXT: shldl $1, %edx, %eax
; X86-NEXT: shldl $1, %ecx, %edx
; X86-NEXT: retl
;
; X64-LABEL: rotl1_64:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: rolq %rax
; X64-NEXT: retq
%B = shl i64 %A, 1
%C = lshr i64 %A, 63
%D = or i64 %B, %C
ret i64 %D
}
define i64 @rotr1_64(i64 %A) nounwind {
; X86-LABEL: rotr1_64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl %ecx, %eax
; X86-NEXT: shldl $31, %edx, %eax
; X86-NEXT: shldl $31, %ecx, %edx
; X86-NEXT: retl
;
; X64-LABEL: rotr1_64:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: rorq %rax
; X64-NEXT: retq
%B = shl i64 %A, 63
%C = lshr i64 %A, 1
%D = or i64 %B, %C
ret i64 %D
}
define i32 @rotl32(i32 %A, i8 %Amt) nounwind {
; X86-LABEL: rotl32:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: roll %cl, %eax
; X86-NEXT: retl
;
; X64-LABEL: rotl32:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movl %edi, %eax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: roll %cl, %eax
; X64-NEXT: retq
%shift.upgrd.1 = zext i8 %Amt to i32
%B = shl i32 %A, %shift.upgrd.1
%Amt2 = sub i8 32, %Amt
%shift.upgrd.2 = zext i8 %Amt2 to i32
%C = lshr i32 %A, %shift.upgrd.2
%D = or i32 %B, %C
ret i32 %D
}
define i32 @rotr32(i32 %A, i8 %Amt) nounwind {
; X86-LABEL: rotr32:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorl %cl, %eax
; X86-NEXT: retl
;
; X64-LABEL: rotr32:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movl %edi, %eax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rorl %cl, %eax
; X64-NEXT: retq
%shift.upgrd.3 = zext i8 %Amt to i32
%B = lshr i32 %A, %shift.upgrd.3
%Amt2 = sub i8 32, %Amt
%shift.upgrd.4 = zext i8 %Amt2 to i32
%C = shl i32 %A, %shift.upgrd.4
%D = or i32 %B, %C
ret i32 %D
}
define i32 @rotli32(i32 %A) nounwind {
; X86-LABEL: rotli32:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: roll $5, %eax
; X86-NEXT: retl
;
; X64-LABEL: rotli32:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: roll $5, %eax
; X64-NEXT: retq
%B = shl i32 %A, 5
%C = lshr i32 %A, 27
%D = or i32 %B, %C
ret i32 %D
}
define i32 @rotri32(i32 %A) nounwind {
; X86-LABEL: rotri32:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: roll $27, %eax
; X86-NEXT: retl
;
; X64-LABEL: rotri32:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: roll $27, %eax
; X64-NEXT: retq
%B = lshr i32 %A, 5
%C = shl i32 %A, 27
%D = or i32 %B, %C
ret i32 %D
}
define i32 @rotl1_32(i32 %A) nounwind {
; X86-LABEL: rotl1_32:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: roll %eax
; X86-NEXT: retl
;
; X64-LABEL: rotl1_32:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: roll %eax
; X64-NEXT: retq
%B = shl i32 %A, 1
%C = lshr i32 %A, 31
%D = or i32 %B, %C
ret i32 %D
}
define i32 @rotr1_32(i32 %A) nounwind {
; X86-LABEL: rotr1_32:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorl %eax
; X86-NEXT: retl
;
; X64-LABEL: rotr1_32:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rorl %eax
; X64-NEXT: retq
%B = shl i32 %A, 31
%C = lshr i32 %A, 1
%D = or i32 %B, %C
ret i32 %D
}
define i16 @rotl16(i16 %A, i8 %Amt) nounwind {
; X86-LABEL: rotl16:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolw %cl, %ax
; X86-NEXT: retl
;
; X64-LABEL: rotl16:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movl %edi, %eax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rolw %cl, %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
%shift.upgrd.5 = zext i8 %Amt to i16
%B = shl i16 %A, %shift.upgrd.5
%Amt2 = sub i8 16, %Amt
%shift.upgrd.6 = zext i8 %Amt2 to i16
%C = lshr i16 %A, %shift.upgrd.6
%D = or i16 %B, %C
ret i16 %D
}
define i16 @rotr16(i16 %A, i8 %Amt) nounwind {
; X86-LABEL: rotr16:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorw %cl, %ax
; X86-NEXT: retl
;
; X64-LABEL: rotr16:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movl %edi, %eax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rorw %cl, %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
%shift.upgrd.7 = zext i8 %Amt to i16
%B = lshr i16 %A, %shift.upgrd.7
%Amt2 = sub i8 16, %Amt
%shift.upgrd.8 = zext i8 %Amt2 to i16
%C = shl i16 %A, %shift.upgrd.8
%D = or i16 %B, %C
ret i16 %D
}
define i16 @rotli16(i16 %A) nounwind {
; X86-LABEL: rotli16:
; X86: # %bb.0:
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolw $5, %ax
; X86-NEXT: retl
;
; X64-LABEL: rotli16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rolw $5, %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
%B = shl i16 %A, 5
%C = lshr i16 %A, 11
%D = or i16 %B, %C
ret i16 %D
}
define i16 @rotri16(i16 %A) nounwind {
; X86-LABEL: rotri16:
; X86: # %bb.0:
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolw $11, %ax
; X86-NEXT: retl
;
; X64-LABEL: rotri16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rolw $11, %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
%B = lshr i16 %A, 5
%C = shl i16 %A, 11
%D = or i16 %B, %C
ret i16 %D
}
define i16 @rotl1_16(i16 %A) nounwind {
; X86-LABEL: rotl1_16:
; X86: # %bb.0:
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolw %ax
; X86-NEXT: retl
;
; X64-LABEL: rotl1_16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rolw %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
%B = shl i16 %A, 1
%C = lshr i16 %A, 15
%D = or i16 %B, %C
ret i16 %D
}
define i16 @rotr1_16(i16 %A) nounwind {
; X86-LABEL: rotr1_16:
; X86: # %bb.0:
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorw %ax
; X86-NEXT: retl
;
; X64-LABEL: rotr1_16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rorw %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
%B = lshr i16 %A, 1
%C = shl i16 %A, 15
%D = or i16 %B, %C
ret i16 %D
}
define i8 @rotl8(i8 %A, i8 %Amt) nounwind {
; X86-LABEL: rotl8:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolb %cl, %al
; X86-NEXT: retl
;
; X64-LABEL: rotl8:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movl %edi, %eax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rolb %cl, %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%B = shl i8 %A, %Amt
%Amt2 = sub i8 8, %Amt
%C = lshr i8 %A, %Amt2
%D = or i8 %B, %C
ret i8 %D
}
define i8 @rotr8(i8 %A, i8 %Amt) nounwind {
; X86-LABEL: rotr8:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorb %cl, %al
; X86-NEXT: retl
;
; X64-LABEL: rotr8:
; X64: # %bb.0:
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: movl %edi, %eax
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rorb %cl, %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%B = lshr i8 %A, %Amt
%Amt2 = sub i8 8, %Amt
%C = shl i8 %A, %Amt2
%D = or i8 %B, %C
ret i8 %D
}
define i8 @rotli8(i8 %A) nounwind {
; X86-LABEL: rotli8:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolb $5, %al
; X86-NEXT: retl
;
; X64-LABEL: rotli8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rolb $5, %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%B = shl i8 %A, 5
%C = lshr i8 %A, 3
%D = or i8 %B, %C
ret i8 %D
}
define i8 @rotri8(i8 %A) nounwind {
; X86-LABEL: rotri8:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolb $3, %al
; X86-NEXT: retl
;
; X64-LABEL: rotri8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rolb $3, %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%B = lshr i8 %A, 5
%C = shl i8 %A, 3
%D = or i8 %B, %C
ret i8 %D
}
define i8 @rotl1_8(i8 %A) nounwind {
; X86-LABEL: rotl1_8:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rolb %al
; X86-NEXT: retl
;
; X64-LABEL: rotl1_8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rolb %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%B = shl i8 %A, 1
%C = lshr i8 %A, 7
%D = or i8 %B, %C
ret i8 %D
}
define i8 @rotr1_8(i8 %A) nounwind {
; X86-LABEL: rotr1_8:
; X86: # %bb.0:
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorb %al
; X86-NEXT: retl
;
; X64-LABEL: rotr1_8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: rorb %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%B = lshr i8 %A, 1
%C = shl i8 %A, 7
%D = or i8 %B, %C
ret i8 %D
}
define void @rotr1_64_mem(ptr %Aptr) nounwind {
; X86-LABEL: rotr1_64_mem:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl (%eax), %ecx
; X86-NEXT: movl 4(%eax), %edx
; X86-NEXT: movl %ecx, %esi
; X86-NEXT: shldl $31, %edx, %esi
; X86-NEXT: shldl $31, %ecx, %edx
; X86-NEXT: movl %edx, (%eax)
; X86-NEXT: movl %esi, 4(%eax)
; X86-NEXT: popl %esi
; X86-NEXT: retl
;
; X64-LABEL: rotr1_64_mem:
; X64: # %bb.0:
; X64-NEXT: rorq (%rdi)
; X64-NEXT: retq
%A = load i64, ptr%Aptr
%B = shl i64 %A, 63
%C = lshr i64 %A, 1
%D = or i64 %B, %C
store i64 %D, ptr %Aptr
ret void
}
define void @rotr1_32_mem(ptr %Aptr) nounwind {
; X86-LABEL: rotr1_32_mem:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorl (%eax)
; X86-NEXT: retl
;
; X64-LABEL: rotr1_32_mem:
; X64: # %bb.0:
; X64-NEXT: rorl (%rdi)
; X64-NEXT: retq
%A = load i32, ptr%Aptr
%B = shl i32 %A, 31
%C = lshr i32 %A, 1
%D = or i32 %B, %C
store i32 %D, ptr %Aptr
ret void
}
define void @rotr1_16_mem(ptr %Aptr) nounwind {
; X86-LABEL: rotr1_16_mem:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorw (%eax)
; X86-NEXT: retl
;
; X64-LABEL: rotr1_16_mem:
; X64: # %bb.0:
; X64-NEXT: rorw (%rdi)
; X64-NEXT: retq
%A = load i16, ptr%Aptr
%B = shl i16 %A, 15
%C = lshr i16 %A, 1
%D = or i16 %B, %C
store i16 %D, ptr %Aptr
ret void
}
define void @rotr1_8_mem(ptr %Aptr) nounwind {
; X86-LABEL: rotr1_8_mem:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: rorb (%eax)
; X86-NEXT: retl
;
; X64-LABEL: rotr1_8_mem:
; X64: # %bb.0:
; X64-NEXT: rorb (%rdi)
; X64-NEXT: retq
%A = load i8, ptr%Aptr
%B = shl i8 %A, 7
%C = lshr i8 %A, 1
%D = or i8 %B, %C
store i8 %D, ptr %Aptr
ret void
}
define i64 @truncated_rot(i64 %x, i32 %amt) nounwind {
; X86-LABEL: truncated_rot:
; X86: # %bb.0: # %entry
; X86-NEXT: pushl %ebx
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
; X86-NEXT: movl {{[0-9]+}}(%esp), %ebx
; X86-NEXT: movl %esi, %eax
; X86-NEXT: shll %cl, %eax
; X86-NEXT: testb $32, %cl
; X86-NEXT: movl $0, %edi
; X86-NEXT: jne .LBB28_2
; X86-NEXT: # %bb.1: # %entry
; X86-NEXT: movl %eax, %edi
; X86-NEXT: .LBB28_2: # %entry
; X86-NEXT: movb $64, %dl
; X86-NEXT: subb %cl, %dl
; X86-NEXT: movl %ebx, %eax
; X86-NEXT: movl %edx, %ecx
; X86-NEXT: shrl %cl, %eax
; X86-NEXT: shrdl %cl, %ebx, %esi
; X86-NEXT: testb $32, %dl
; X86-NEXT: jne .LBB28_4
; X86-NEXT: # %bb.3: # %entry
; X86-NEXT: movl %esi, %eax
; X86-NEXT: .LBB28_4: # %entry
; X86-NEXT: orl %edi, %eax
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: popl %ebx
; X86-NEXT: retl
;
; X64-LABEL: truncated_rot:
; X64: # %bb.0: # %entry
; X64-NEXT: movl %esi, %ecx
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: rolq %cl, %rdi
; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
entry:
%sh_prom = zext i32 %amt to i64
%shl = shl i64 %x, %sh_prom
%sub = sub nsw i32 64, %amt
%sh_prom1 = zext i32 %sub to i64
%shr = lshr i64 %x, %sh_prom1
%or = or i64 %shr, %shl
%and = and i64 %or, 4294967295
ret i64 %and
}