34 lines
823 B
LLVM
34 lines
823 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -ipsccp -S %s | FileCheck %s
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declare i1 @cond()
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define i32 @test() {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
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; CHECK-NEXT: br i1 [[C_1]], label [[LOOP]], label [[LATCH_2:%.*]]
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; CHECK: latch.2:
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; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
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; CHECK-NEXT: br i1 [[C_2]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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br label %loop
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loop:
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%p = phi i32 [ undef, %entry ], [ 0, %latch.2 ], [ %p, %loop]
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%c.1 = call i1 @cond()
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br i1 %c.1, label %loop, label %latch.2
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latch.2:
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%c.2 = call i1 @cond()
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br i1 %c.2, label %loop, label %exit
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exit:
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ret i32 %p
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}
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