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27 lines
637 B
LLVM
27 lines
637 B
LLVM
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; RUN: opt < %s -loweratomic -S | FileCheck %s
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declare i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* %ptr, i8 %cmp, i8 %val)
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declare i8 @llvm.atomic.swap.i8.p0i8(i8* %ptr, i8 %val)
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define i8 @cmpswap() {
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; CHECK: @cmpswap
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%i = alloca i8
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%j = call i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* %i, i8 0, i8 42)
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; CHECK: [[INST:%[a-z0-9]+]] = load
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; CHECK-NEXT: icmp
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; CHECK-NEXT: select
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; CHECK-NEXT: store
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ret i8 %j
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; CHECK: ret i8 [[INST]]
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}
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define i8 @swap() {
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; CHECK: @swap
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%i = alloca i8
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%j = call i8 @llvm.atomic.swap.i8.p0i8(i8* %i, i8 42)
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; CHECK: [[INST:%[a-z0-9]+]] = load
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; CHECK-NEXT: store
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ret i8 %j
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; CHECK: ret i8 [[INST]]
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}
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