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Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."

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This reverts commit r213474 (and r213475), which causes a miscompile on
a stage2 LTO build.  I'll reply on the list in a moment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213562 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2014-07-21 17:06:51 +00:00
parent 9787e8c76b
commit facdfc6781
41 changed files with 230 additions and 167 deletions
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lib/Transforms/Vectorize/LoopVectorize.cpp
+3 -2
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@@ -2950,8 +2950,9 @@ InnerLoopVectorizer::createBlockInMask(BasicBlock *BB) {
Value *Zero = ConstantInt::get(IntegerType::getInt1Ty(BB->getContext()), 0);
VectorParts BlockMask = getVectorValue(Zero);
for (BasicBlock *Pred : predecessors(BB)) {
VectorParts EM = createEdgeMask(Pred, BB);
// For each pred:
for (pred_iterator it = pred_begin(BB), e = pred_end(BB); it != e; ++it) {
VectorParts EM = createEdgeMask(*it, BB);
for (unsigned part = 0; part < UF; ++part)
BlockMask[part] = Builder.CreateOr(BlockMask[part], EM[part]);
}