diff options
| -rw-r--r-- | llvm/test/CodeGen/X86/atomic-load-store-wide.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/atomic-load-store-wide.ll b/llvm/test/CodeGen/X86/atomic-load-store-wide.ll index 2841b8ca344..d1b280661a3 100644 --- a/llvm/test/CodeGen/X86/atomic-load-store-wide.ll +++ b/llvm/test/CodeGen/X86/atomic-load-store-wide.ll @@ -90,3 +90,35 @@ define i64 @test3(i64* %ptr) noimplicitfloat { %val = load atomic i64, i64* %ptr seq_cst, align 8 ret i64 %val } + +define i64 @test4(i64* %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 %ebx +; NOSSE-NEXT: .cfi_def_cfa_offset 8 +; NOSSE-NEXT: pushl %esi +; NOSSE-NEXT: .cfi_def_cfa_offset 12 +; NOSSE-NEXT: .cfi_offset %esi, -12 +; NOSSE-NEXT: .cfi_offset %ebx, -8 +; NOSSE-NEXT: movl {{[0-9]+}}(%esp), %esi +; NOSSE-NEXT: xorl %eax, %eax +; NOSSE-NEXT: xorl %edx, %edx +; NOSSE-NEXT: xorl %ecx, %ecx +; NOSSE-NEXT: xorl %ebx, %ebx +; NOSSE-NEXT: lock cmpxchg8b (%esi) +; NOSSE-NEXT: popl %esi +; NOSSE-NEXT: .cfi_def_cfa_offset 8 +; NOSSE-NEXT: popl %ebx +; NOSSE-NEXT: .cfi_def_cfa_offset 4 +; NOSSE-NEXT: retl + %val = load atomic volatile i64, i64* %ptr seq_cst, align 8 + ret i64 %val +} |
