From 203572552d9f91455972ba322a4348e3d1a67c9c Mon Sep 17 00:00:00 2001 From: Owen Anderson Date: Fri, 25 Aug 2006 22:13:55 +0000 Subject: [PATCH] Fix a crash related to updating Phi nodes in the original header block. This was causing a crash in 175.vpr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29887 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/LoopUnroll.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/Transforms/Scalar/LoopUnroll.cpp b/lib/Transforms/Scalar/LoopUnroll.cpp index 3ffdfac33b6..676afb0e226 100644 --- a/lib/Transforms/Scalar/LoopUnroll.cpp +++ b/lib/Transforms/Scalar/LoopUnroll.cpp @@ -269,7 +269,8 @@ bool LoopUnroll::visitLoop(Loop *L) { if (isa(InVal)) InVal = LastValueMap[InVal]; (*SI)->removeIncomingValue(LatchBlock, false); - (*SI)->addIncoming(InVal, cast(LastValueMap[LatchBlock])); + if (InVal) + (*SI)->addIncoming(InVal, cast(LastValueMap[LatchBlock])); } } -- 2.34.1