diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Vectorize/SLPVectorizer.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp index af1c0e7..4d82bc4 100644 --- a/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -786,13 +786,14 @@ void BoUpSLP::buildTree_rec(ArrayRef<Value *> VL, unsigned Depth) { } case Instruction::Load: { // Check if the loads are consecutive or of we need to swizzle them. - for (unsigned i = 0, e = VL.size() - 1; i < e; ++i) - if (!isConsecutiveAccess(VL[i], VL[i + 1])) { + for (unsigned i = 0, e = VL.size() - 1; i < e; ++i) { + LoadInst *L = cast<LoadInst>(VL[i]); + if (!L->isSimple() || !isConsecutiveAccess(VL[i], VL[i + 1])) { newTreeEntry(VL, false); DEBUG(dbgs() << "SLP: Need to swizzle loads.\n"); return; } - + } newTreeEntry(VL, true); DEBUG(dbgs() << "SLP: added a vector of loads.\n"); return; @@ -1911,6 +1912,10 @@ unsigned SLPVectorizer::collectStores(BasicBlock *BB, BoUpSLP &R) { if (!SI) continue; + // Don't touch volatile stores. + if (!SI->isSimple()) + continue; + // Check that the pointer points to scalars. Type *Ty = SI->getValueOperand()->getType(); if (Ty->isAggregateType() || Ty->isVectorTy()) |