6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-19 03:24:09 +00:00
Code Issues Projects Releases Wiki Activity

Revamp PredIteratorCache interface to be cleaner.

Browse Source 
Summary:
This lets us use range based for loops.

Reviewers: chandlerc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9169

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235416 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Berlin
2015-04-21 21:11:50 +00:00
parent 0f710d7a5a
commit 13ba3ca69f
5 changed files with 69 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
lib/Transforms/Utils/LCSSA.cpp
View File

@ -112,17 +112,17 @@ static bool processInstruction(Loop &L, Instruction &Inst, DominatorTree &DT,
if (SSAUpdate.HasValueForBlock(ExitBB))
continue;
PHINode *PN = PHINode::Create(Inst.getType(), PredCache.GetNumPreds(ExitBB),
PHINode *PN = PHINode::Create(Inst.getType(), PredCache.size(ExitBB),
Inst.getName() + ".lcssa", ExitBB->begin());
// Add inputs from inside the loop for this PHI.
for (BasicBlock **PI = PredCache.GetPreds(ExitBB); *PI; ++PI) {
PN->addIncoming(&Inst, *PI);
for (BasicBlock *Pred : PredCache.get(ExitBB)) {
PN->addIncoming(&Inst, Pred);
// If the exit block has a predecessor not within the loop, arrange for
// the incoming value use corresponding to that predecessor to be
// rewritten in terms of a different LCSSA PHI.
if (!L.contains(*PI))
if (!L.contains(Pred))
UsesToRewrite.push_back(
&PN->getOperandUse(PN->getOperandNumForIncomingValue(
PN->getNumIncomingValues() - 1)));