forked from OSchip/llvm-project
34 lines
837 B
LLVM
34 lines
837 B
LLVM
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; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
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@a = external global i32, align 4
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define void @fn1() {
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entry:
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store i32 5, i32* @a, align 4
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%call = call i32 (...) @foo()
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%tobool = icmp ne i32 %call, 0
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br i1 %tobool, label %if.then, label %if.end
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if.then: ; preds = %entry
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br label %loop
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loop: ; preds = %loop, %if.then
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%0 = load i32, i32* @a, align 4
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call void @bar(i32 %0)
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br label %loop
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if.end: ; preds = %entry
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store i32 6, i32* @a, align 4
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ret void
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}
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declare i32 @foo(...)
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declare void @bar(i32)
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; CHECK: Inorder PostDominator Tree:
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; CHECK-NEXT: [1] <<exit node>>
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; CHECK: [2] %loop
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; CHECK-NEXT: [3] %if.then
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; CHECK: Roots: %if.end %loop
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