From 96afad55b9283c71a6caca12d0f1ab66e281505f Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sun, 2 Mar 2003 23:43:34 +0000 Subject: [PATCH] Fix a problem with negative indexes llvm-svn: 5681 --- llvm/lib/Analysis/BasicAliasAnalysis.cpp | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp index 2242d4f5b39d..d9456f56e5e0 100644 --- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp +++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp @@ -301,11 +301,11 @@ BasicAliasAnalysis::CheckGEPInstructions(GetElementPtrInst *GEP1, unsigned G1S, } } - unsigned Offset1 = getTargetData().getIndexedOffset(GEPPointerTy, Indices1); - unsigned Offset2 = getTargetData().getIndexedOffset(GEPPointerTy, Indices2); + int Offset1 = getTargetData().getIndexedOffset(GEPPointerTy, Indices1); + int Offset2 = getTargetData().getIndexedOffset(GEPPointerTy, Indices2); assert(Offset1 < Offset2 &&"There is at least one different constant here!"); - if (Offset2-Offset1 >= SizeMax) { + if ((unsigned)(Offset2-Offset1) >= SizeMax) { //std::cerr << "Determined that these two GEP's don't alias [" // << SizeMax << " bytes]: \n" << *GEP1 << *GEP2; return NoAlias; -- GitLab