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| author | Chris Lattner <sabre@nondot.org> | 2009-12-01 06:04:43 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-12-01 06:04:43 +0000 |
| commit | 46875c0bfb77880ba4120eeed7caca7f1f7c1f69 (patch) | |
| tree | 64085c809aadf89c23d16bab28ce4d8ec2fad43f /test/Transforms/JumpThreading/crash.ll | |
| parent | 18518603f1acc26768eba40c53bcfc0e2fa85fec (diff) | |
| download | external_llvm-46875c0bfb77880ba4120eeed7caca7f1f7c1f69.zip external_llvm-46875c0bfb77880ba4120eeed7caca7f1f7c1f69.tar.gz external_llvm-46875c0bfb77880ba4120eeed7caca7f1f7c1f69.tar.bz2 | |
fix PR5640 by tracking whether a block is the header of a loop more
precisely, which prevents us from infinitely peeling the loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90211 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/JumpThreading/crash.ll')
| -rw-r--r-- | test/Transforms/JumpThreading/crash.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/JumpThreading/crash.ll b/test/Transforms/JumpThreading/crash.ll index 7e2a2a0..b2b9d69 100644 --- a/test/Transforms/JumpThreading/crash.ll +++ b/test/Transforms/JumpThreading/crash.ll @@ -192,3 +192,23 @@ bb61: ret void } + +; PR5640 +define fastcc void @test6(i1 %tmp, i1 %tmp1) nounwind ssp { +entry: + br i1 %tmp, label %bb12, label %bb14 + +bb12: + br label %bb14 + +bb14: + %A = phi i1 [ %A, %bb13 ], [ true, %bb12 ], [%tmp1, %entry] + br label %bb13 + +bb13: + br i1 %A, label %bb14, label %bb61 + + +bb61: + ret void +} |