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

make a temporary for *SI, no functionality change.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36782 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-05-05 18:36:36 +00:00
parent 01dfdcd84b
commit a0c54f3ada
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
lib/Transforms/Scalar/LoopUnroll.cpp
View File

@ -302,17 +302,18 @@ bool LoopUnroll::runOnLoop(Loop *L, LPPassManager &LPM) {
for (SmallPtrSet<PHINode*,8>::iterator SI = Users.begin(), SE = Users.end();
SI != SE; ++SI) {
Value* InVal = (*SI)->getIncomingValueForBlock(LatchBlock);
PHINode *PN = *SI;
Value* InVal = PN->getIncomingValueForBlock(LatchBlock);
if (isa<Instruction>(InVal))
InVal = LastValueMap[InVal];
(*SI)->removeIncomingValue(LatchBlock, false);
PN->removeIncomingValue(LatchBlock, false);
if (InVal)
(*SI)->addIncoming(InVal, cast<BasicBlock>(LastValueMap[LatchBlock]));
if ((*SI)->getNumIncomingValues() == 0) {
PN->addIncoming(InVal, cast<BasicBlock>(LastValueMap[LatchBlock]));
if (PN->getNumIncomingValues() == 0) {
// Remove this phi node.
// If anyone is using this PHI, make them use a dummy value instead...
(*SI)->replaceAllUsesWith(UndefValue::get((*SI)->getType()));
(*SI)->eraseFromParent();
PN->replaceAllUsesWith(UndefValue::get(PN->getType()));
PN->eraseFromParent();
}
}
}