; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mcpu=corei7 -mtriple=i686-- -verify-machineinstrs | FileCheck %s --check-prefix=CHECK --check-prefix=SSE42 ; RUN: llc < %s -mtriple=i686-- -verify-machineinstrs | FileCheck %s --check-prefix=CHECK --check-prefix=NOSSE ; 64-bit load/store on x86-32 ; FIXME: The generated code can be substantially improved. define void @test1(ptr %ptr, i64 %val1) { ; SSE42-LABEL: test1: ; SSE42: # %bb.0: ; SSE42-NEXT: movl {{[0-9]+}}(%esp), %eax ; SSE42-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero ; SSE42-NEXT: movlps %xmm0, (%eax) ; SSE42-NEXT: lock orl $0, (%esp) ; SSE42-NEXT: retl ; ; NOSSE-LABEL: test1: ; NOSSE: # %bb.0: ; NOSSE-NEXT: pushl %ebp ; NOSSE-NEXT: .cfi_def_cfa_offset 8 ; NOSSE-NEXT: .cfi_offset %ebp, -8 ; NOSSE-NEXT: movl %esp, %ebp ; NOSSE-NEXT: .cfi_def_cfa_register %ebp ; NOSSE-NEXT: andl $-8, %esp ; NOSSE-NEXT: subl $8, %esp ; NOSSE-NEXT: movl 8(%ebp), %eax ; NOSSE-NEXT: movl 12(%ebp), %ecx ; NOSSE-NEXT: movl 16(%ebp), %edx ; NOSSE-NEXT: movl %edx, {{[0-9]+}}(%esp) ; NOSSE-NEXT: movl %ecx, (%esp) ; NOSSE-NEXT: fildll (%esp) ; NOSSE-NEXT: fistpll (%eax) ; NOSSE-NEXT: lock orl $0, (%esp) ; NOSSE-NEXT: movl %ebp, %esp ; NOSSE-NEXT: popl %ebp ; NOSSE-NEXT: .cfi_def_cfa %esp, 4 ; NOSSE-NEXT: retl store atomic i64 %val1, ptr %ptr seq_cst, align 8 ret void } define i64 @test2(ptr %ptr) { ; SSE42-LABEL: test2: ; SSE42: # %bb.0: ; SSE42-NEXT: movl {{[0-9]+}}(%esp), %eax ; SSE42-NEXT: movq {{.*#+}} xmm0 = mem[0],zero ; SSE42-NEXT: movd %xmm0, %eax ; SSE42-NEXT: pextrd $1, %xmm0, %edx ; SSE42-NEXT: retl ; ; NOSSE-LABEL: test2: ; NOSSE: # %bb.0: ; NOSSE-NEXT: pushl %ebp ; NOSSE-NEXT: .cfi_def_cfa_offset 8 ; NOSSE-NEXT: .cfi_offset %ebp, -8 ; NOSSE-NEXT: movl %esp, %ebp ; NOSSE-NEXT: .cfi_def_cfa_register %ebp ; NOSSE-NEXT: andl $-8, %esp ; NOSSE-NEXT: subl $8, %esp ; NOSSE-NEXT: movl 8(%ebp), %eax ; NOSSE-NEXT: fildll (%eax) ; NOSSE-NEXT: fistpll (%esp) ; NOSSE-NEXT: movl (%esp), %eax ; NOSSE-NEXT: movl {{[0-9]+}}(%esp), %edx ; NOSSE-NEXT: movl %ebp, %esp ; NOSSE-NEXT: popl %ebp ; NOSSE-NEXT: .cfi_def_cfa %esp, 4 ; NOSSE-NEXT: retl %val = load atomic i64, ptr %ptr seq_cst, align 8 ret i64 %val } ; Same as test2, but with noimplicitfloat. define i64 @test3(ptr %ptr) noimplicitfloat { ; CHECK-LABEL: test3: ; CHECK: # %bb.0: ; CHECK-NEXT: pushl %ebx ; CHECK-NEXT: .cfi_def_cfa_offset 8 ; CHECK-NEXT: pushl %esi ; CHECK-NEXT: .cfi_def_cfa_offset 12 ; CHECK-NEXT: .cfi_offset %esi, -12 ; CHECK-NEXT: .cfi_offset %ebx, -8 ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %esi ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: xorl %edx, %edx ; CHECK-NEXT: xorl %ecx, %ecx ; CHECK-NEXT: xorl %ebx, %ebx ; CHECK-NEXT: lock cmpxchg8b (%esi) ; CHECK-NEXT: popl %esi ; CHECK-NEXT: .cfi_def_cfa_offset 8 ; CHECK-NEXT: popl %ebx ; CHECK-NEXT: .cfi_def_cfa_offset 4 ; CHECK-NEXT: retl %val = load atomic i64, ptr %ptr seq_cst, align 8 ret i64 %val } define i64 @test4(ptr %ptr) { ; SSE42-LABEL: test4: ; SSE42: # %bb.0: ; SSE42-NEXT: movl {{[0-9]+}}(%esp), %eax ; SSE42-NEXT: movq {{.*#+}} xmm0 = mem[0],zero ; SSE42-NEXT: movd %xmm0, %eax ; SSE42-NEXT: pextrd $1, %xmm0, %edx ; SSE42-NEXT: retl ; ; NOSSE-LABEL: test4: ; NOSSE: # %bb.0: ; NOSSE-NEXT: pushl %ebp ; NOSSE-NEXT: .cfi_def_cfa_offset 8 ; NOSSE-NEXT: .cfi_offset %ebp, -8 ; NOSSE-NEXT: movl %esp, %ebp ; NOSSE-NEXT: .cfi_def_cfa_register %ebp ; NOSSE-NEXT: andl $-8, %esp ; NOSSE-NEXT: subl $8, %esp ; NOSSE-NEXT: movl 8(%ebp), %eax ; NOSSE-NEXT: fildll (%eax) ; NOSSE-NEXT: fistpll (%esp) ; NOSSE-NEXT: movl (%esp), %eax ; NOSSE-NEXT: movl {{[0-9]+}}(%esp), %edx ; NOSSE-NEXT: movl %ebp, %esp ; NOSSE-NEXT: popl %ebp ; NOSSE-NEXT: .cfi_def_cfa %esp, 4 ; NOSSE-NEXT: retl %val = load atomic volatile i64, ptr %ptr seq_cst, align 8 ret i64 %val }