2f448bf509
Test updates were performed using: https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34 These are only the test updates where the test passed without further modification (which is almost all of them, as the backend is largely pointer-type agnostic).
21 lines
555 B
LLVM
21 lines
555 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-- -mattr=-sse -O0 | FileCheck %s
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; PR9675
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define i32 @t() {
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; CHECK-LABEL: t:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl $1, -{{[0-9]+}}(%rsp)
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; CHECK-NEXT: mfence
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; CHECK-NEXT: lock decl -{{[0-9]+}}(%rsp)
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; CHECK-NEXT: mfence
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%i = alloca i32, align 4
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store i32 1, ptr %i, align 4
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fence seq_cst
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%t0 = atomicrmw sub ptr %i, i32 1 monotonic
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fence seq_cst
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ret i32 0
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}
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