Mercurial > hg > CbC > CbC_llvm
diff test/Other/2003-02-19-LoopInfoNestingBug.ll @ 0:95c75e76d11b LLVM3.4
LLVM 3.4
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 13:56:28 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/Other/2003-02-19-LoopInfoNestingBug.ll Thu Dec 12 13:56:28 2013 +0900 @@ -0,0 +1,29 @@ +; LoopInfo is incorrectly calculating loop nesting! In this case it doesn't +; figure out that loop "Inner" should be nested inside of leep "LoopHeader", +; and instead nests it just inside loop "Top" +; +; RUN: opt < %s -analyze -loops | \ +; RUN: grep " Loop at depth 3 containing: %Inner<header><latch><exiting>" +; +define void @test() { + br label %Top + +Top: ; preds = %Out, %0 + br label %LoopHeader + +Next: ; preds = %LoopHeader + br i1 false, label %Inner, label %Out + +Inner: ; preds = %Inner, %Next + br i1 false, label %Inner, label %LoopHeader + +LoopHeader: ; preds = %Inner, %Top + br label %Next + +Out: ; preds = %Next + br i1 false, label %Top, label %Done + +Done: ; preds = %Out + ret void +} +