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[X86] Pre-commit i64 volatile test case for D60156. NFC 

llvm-svn: 358210
This commit is contained in:
Craig Topper 2019-04-11 18:40:08 +00:00
parent 1740c6e0da
commit 1fe5a9963d
1 changed files with 32 additions and 0 deletions
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32
llvm/test/CodeGen/X86/atomic-load-store-wide.ll
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@ -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
}