6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-19 03:29:22 +00:00
Code Issues Projects Releases Wiki Activity

Reuse the values if they are constants: this is important so that we index into the right structure field

Browse Source 
This fixes bug: BasicAA/2003-07-03-BasicAACrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7093 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-07-03 06:42:38 +00:00
parent c863c41903
commit 5bfccb9def
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
lib/Analysis/BasicAliasAnalysis.cpp
View File

@ -288,8 +288,13 @@ BasicAliasAnalysis::CheckGEPInstructions(GetElementPtrInst *GEP1, unsigned G1S,
const Value *Op1 = GEP1->getOperand(i);
const Value *Op2 = GEP2->getOperand(i);
if (Op1 == Op2) { // If they are equal, use a zero index...
Indices1.push_back(Constant::getNullValue(Op1->getType()));
Indices2.push_back(Indices1.back());
if (!isa<Constant>(Op1)) {
Indices1.push_back(Constant::getNullValue(Op1->getType()));
Indices2.push_back(Indices1.back());
} else {
Indices1.push_back((Value*)Op1);
Indices2.push_back((Value*)Op2);
}
} else {
if (const ConstantInt *Op1C = dyn_cast<ConstantInt>(Op1)) {
// If this is an array index, make sure the array element is in range...