52 lines
1.4 KiB
LLVM
52 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --include-generated-funcs
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; RUN: opt < %s -passes=loop-extract -S | FileCheck %s
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; This test used to enter an infinite loop, until out of memory (PR3082).
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define void @test() {
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entry:
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br label %loopentry
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loopentry:
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br i1 undef, label %exit.1, label %loopexit
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loopexit:
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br i1 undef, label %loopentry, label %exit.0
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exit.0:
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br label %unified
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exit.1:
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br label %unified
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unified:
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ret void
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}
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; CHECK-LABEL: define {{[^@]+}}@test() {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[CODEREPL:%.*]]
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; CHECK: codeRepl:
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; CHECK-NEXT: [[TARGETBLOCK:%.*]] = call i1 @test.loopentry()
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; CHECK-NEXT: br i1 [[TARGETBLOCK]], label [[EXIT_1:%.*]], label [[EXIT_0:%.*]]
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; CHECK: exit.0:
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; CHECK-NEXT: br label [[UNIFIED:%.*]]
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; CHECK: exit.1:
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; CHECK-NEXT: br label [[UNIFIED]]
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; CHECK: unified:
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; CHECK-NEXT: ret void
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;
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;
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; CHECK-LABEL: define {{[^@]+}}@test.loopentry() {
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; CHECK-NEXT: newFuncRoot:
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; CHECK-NEXT: br label [[LOOPENTRY:%.*]]
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; CHECK: loopentry:
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; CHECK-NEXT: br i1 undef, label [[EXIT_1_EXITSTUB:%.*]], label [[LOOPEXIT:%.*]]
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; CHECK: loopexit:
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; CHECK-NEXT: br i1 undef, label [[LOOPENTRY]], label [[EXIT_0_EXITSTUB:%.*]]
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; CHECK: exit.1.exitStub:
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; CHECK-NEXT: ret i1 true
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; CHECK: exit.0.exitStub:
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; CHECK-NEXT: ret i1 false
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;
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