24 lines
466 B
LLVM
24 lines
466 B
LLVM
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; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
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; CHECK-LABEL: @speculatable_attribute
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; CHECK: select
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define i32 @speculatable_attribute(i32 %a) {
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entry:
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%c = icmp sgt i32 %a, 64
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br i1 %c, label %end, label %if
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if:
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%val = call i32 @func() #0
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br label %end
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end:
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%ret = phi i32 [%val, %if], [0, %entry]
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ret i32 %ret
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}
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define i32 @func() #0 {
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ret i32 1
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}
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attributes #0 = { nounwind readnone speculatable }
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