6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-04 06:09:05 +00:00
Code Issues Projects Releases Wiki Activity

Preserve line number information while threading jumps.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130880 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-05-04 22:48:19 +00:00
parent 5e436b3b0e
commit 95a7de6b91
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Transforms/Scalar/JumpThreading.cpp
View File

@ -929,9 +929,10 @@ bool JumpThreading::SimplifyPartiallyRedundantLoad(LoadInst *LI) {
if (UnavailablePred) {
assert(UnavailablePred->getTerminator()->getNumSuccessors() == 1 &&
"Can't handle critical edge here!");
Value *NewVal = new LoadInst(LoadedPtr, LI->getName()+".pr", false,
LoadInst *NewVal = new LoadInst(LoadedPtr, LI->getName()+".pr", false,
LI->getAlignment(),
UnavailablePred->getTerminator());
NewVal->setDebugLoc(LI->getDebugLoc());
AvailablePreds.push_back(std::make_pair(UnavailablePred, NewVal));
}
@ -944,6 +945,7 @@ bool JumpThreading::SimplifyPartiallyRedundantLoad(LoadInst *LI) {
PHINode *PN = PHINode::Create(LI->getType(), std::distance(PB, PE), "",
LoadBB->begin());
PN->takeName(LI);
PN->setDebugLoc(LI->getDebugLoc());
// Insert new entries into the PHI for each predecessor. A single block may
// have multiple entries here.
@ -1375,7 +1377,8 @@ bool JumpThreading::ThreadEdge(BasicBlock *BB,
// We didn't copy the terminator from BB over to NewBB, because there is now
// an unconditional jump to SuccBB. Insert the unconditional jump.
BranchInst::Create(SuccBB, NewBB);
BranchInst *NewBI =BranchInst::Create(SuccBB, NewBB);
NewBI->setDebugLoc(BB->getTerminator()->getDebugLoc());
// Check to see if SuccBB has PHI nodes. If so, we need to add entries to the
// PHI nodes for NewBB now.