33 lines
798 B
LLVM
33 lines
798 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes='simple-loop-unswitch<nontrivial>' -S < %s | FileCheck %s
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; If we try to replace uses of `true` outside of `@foo`, we'll see it here.
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define i1 @bar() {
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; CHECK-LABEL: @bar(
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; CHECK-NEXT: ret i1 true
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;
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ret i1 true
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}
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; We shouldn't unswitch this loop.
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define void @foo() {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[HEADER:%.*]]
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; CHECK: header:
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; CHECK-NEXT: [[VAL:%.*]] = select i1 true, i1 true, i1 false
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; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[HEADER]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %header
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header:
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%val = select i1 true, i1 true, i1 false
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br i1 %val, label %exit, label %header
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exit:
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ret void
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}
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