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34 lines
804 B
LLVM
34 lines
804 B
LLVM
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; RUN: opt -instcombine -S < %s | FileCheck %s
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declare i32 @k() convergent
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declare i32 @f()
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define i32 @extern() {
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; Convergent attr shouldn't be removed here; k is convergent.
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; CHECK: call i32 @k() [[CONVERGENT_ATTR:#[0-9]+]]
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%a = call i32 @k() convergent
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ret i32 %a
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}
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define i32 @extern_no_attr() {
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; Convergent attr shouldn't be added here, even though k is convergent.
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; CHECK: call i32 @k(){{$}}
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%a = call i32 @k()
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ret i32 %a
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}
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define i32 @no_extern() {
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; Convergent should be removed here, as the target is convergent.
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; CHECK: call i32 @f(){{$}}
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%a = call i32 @f() convergent
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ret i32 %a
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}
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define i32 @indirect_call(i32 ()* %f) {
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; CHECK call i32 %f() [[CONVERGENT_ATTR]]
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%a = call i32 %f() convergent
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ret i32 %a
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}
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; CHECK: [[CONVERGENT_ATTR]] = { convergent }
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