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IRBuilder: Simplify code and reduce indention [NFC] 

llvm-svn: 249543
This commit is contained in:
Tobias Grosser 2015-10-07 13:19:03 +00:00
parent 8e1ecca2ec
commit 73725b8ba5
1 changed files with 29 additions and 25 deletions
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54
polly/lib/CodeGen/IRBuilder.cpp
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@ -124,32 +124,36 @@ void ScopAnnotator::annotate(Instruction *Inst) {
if (!Inst->mayReadOrWriteMemory())
return;
if (!ParallelLoops.empty())
Inst->setMetadata("llvm.mem.parallel_loop_access", ParallelLoops.back());
// TODO: Use the ScopArrayInfo once available here.
if (AliasScopeDomain) {
Value *BasePtr = nullptr;
if (isa<StoreInst>(Inst) || isa<LoadInst>(Inst)) {
const SCEV *PtrSCEV = SE->getSCEV(getPointerOperand(*Inst));
const SCEV *BaseSCEV = SE->getPointerBase(PtrSCEV);
if (const SCEVUnknown *SU = dyn_cast<SCEVUnknown>(BaseSCEV))
BasePtr = SU->getValue();
}
if (BasePtr) {
auto *AliasScope = AliasScopeMap[BasePtr];
if (!AliasScope)
BasePtr = AlternativeAliasBases[BasePtr];
AliasScope = AliasScopeMap[BasePtr];
auto *OtherAliasScopeList = OtherAliasScopeListMap[BasePtr];
Inst->setMetadata("alias.scope", AliasScope);
Inst->setMetadata("noalias", OtherAliasScopeList);
}
}
if (ParallelLoops.empty())
if (!AliasScopeDomain)
return;
Inst->setMetadata("llvm.mem.parallel_loop_access", ParallelLoops.back());
if (!(isa<StoreInst>(Inst) || isa<LoadInst>(Inst)))
return;
auto *PtrSCEV = SE->getSCEV(getPointerOperand(*Inst));
auto *BaseSCEV = SE->getPointerBase(PtrSCEV);
auto *SU = dyn_cast<SCEVUnknown>(BaseSCEV);
if (!SU)
return;
auto *BasePtr = SU->getValue();
if (!BasePtr)
return;
auto *AliasScope = AliasScopeMap[BasePtr];
if (!AliasScope)
BasePtr = AlternativeAliasBases[BasePtr];
AliasScope = AliasScopeMap[BasePtr];
auto *OtherAliasScopeList = OtherAliasScopeListMap[BasePtr];
Inst->setMetadata("alias.scope", AliasScope);
Inst->setMetadata("noalias", OtherAliasScopeList);
}