RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-12-28 14:36:34 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Don't insert null entries into the scalar map for constexpr (cast null to Ty)

Browse Source 
llvm-svn: 5523
This commit is contained in:
Chris Lattner 2003-02-09 23:04:12 +00:00
parent a502e67a14
commit f8c57bab25
1 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/Analysis/DataStructure/Local.cpp
View File

@ -174,16 +174,22 @@ DSNodeHandle GraphBuilder::getValueDest(Value &Val) {
return NH = getValueDest(*CPR->getValue());
} else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
if (CE->getOpcode() == Instruction::Cast)
return NH = getValueDest(*CE->getOperand(0));
if (CE->getOpcode() == Instruction::GetElementPtr) {
NH = getValueDest(*CE->getOperand(0));
else if (CE->getOpcode() == Instruction::GetElementPtr) {
visitGetElementPtrInst(*CE);
hash_map<Value*, DSNodeHandle>::iterator I = ScalarMap.find(CE);
assert(I != ScalarMap.end() && "GEP didn't get processed right?");
return NH = I->second;
NH = I->second;
} else {
// This returns a conservative unknown node for any unhandled ConstExpr
return NH = createNode(DSNode::UnknownNode);
}
if (NH.getNode() == 0) { // (getelementptr null, X) returns null
ScalarMap.erase(V);
return 0;
}
return NH;
// This returns a conservative unknown node for any unhandled ConstExpr
return NH = createNode(DSNode::UnknownNode);
} else if (ConstantIntegral *CI = dyn_cast<ConstantIntegral>(C)) {
// Random constants are unknown mem
return NH = createNode(DSNode::UnknownNode);