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

Fix PR13967.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165187 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakub Staszak
2012-10-03 23:59:47 +00:00
parent 10181ae49c
commit 395c1502a7
2 changed files with 30 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
lib/Transforms/Scalar/IndVarSimplify.cpp
View File

@@ -1262,7 +1262,10 @@ static bool needsLFTR(Loop *L, DominatorTree *DT) {
return true;
// Do LFTR if the exit condition's IV is *not* a simple counter.
Value *IncV = Phi->getIncomingValueForBlock(L->getLoopLatch());
int Idx = Phi->getBasicBlockIndex(L->getLoopLatch());
if (Idx < 0)
return true;
Value *IncV = Phi->getIncomingValue(Idx);
return Phi != getLoopPhiForCounter(IncV, L, DT);
}