6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-09-24 23:28:41 +00:00
Code Issues Projects Releases Wiki Activity

Transforms: Use getFirstNonPHI to set the insertion point for PHIs

Browse Source 
We were previously using getFirstInsertionPt to insert PHI
instructions when vectorizing, but getFirstInsertionPt also skips past
landingpads, causing this to generate invalid IR.

We can avoid this issue by using getFirstNonPHI instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191526 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Justin Bogner
2013-09-27 15:30:25 +00:00
parent 0548a5487a
commit d237e834a8
3 changed files with 33 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Transforms/Vectorize/SLPVectorizer.cpp
View File

@@ -1201,7 +1201,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
switch (Opcode) {
case Instruction::PHI: {
PHINode *PH = dyn_cast<PHINode>(VL0);
Builder.SetInsertPoint(PH->getParent()->getFirstInsertionPt());
Builder.SetInsertPoint(PH->getParent()->getFirstNonPHI());
Builder.SetCurrentDebugLocation(PH->getDebugLoc());
PHINode *NewPhi = Builder.CreatePHI(VecTy, PH->getNumIncomingValues());
E->VectorizedValue = NewPhi;