From 0fb7e18edd49f8df705a27e789eb925e18d4f44e Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 4 Nov 2009 18:57:42 +0000 Subject: [PATCH] Fix an iterator invalidation bug that happens when a hashtable resizes in IPSCCP. This fixes PR5394. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86036 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/SCCP.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp index 05a0eeef2d3..d515c130e99 100644 --- a/lib/Transforms/Scalar/SCCP.cpp +++ b/lib/Transforms/Scalar/SCCP.cpp @@ -1280,9 +1280,10 @@ CallOverdefined: } if (const StructType *STy = dyn_cast(AI->getType())) { - for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) - mergeInValue(getStructValueState(AI, i), AI, - getStructValueState(*CAI, i)); + for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) { + LatticeVal CallArg = getStructValueState(*CAI, i); + mergeInValue(getStructValueState(AI, i), AI, CallArg); + } } else { mergeInValue(AI, getValueState(*CAI)); }