6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-02 02:55:35 +00:00
Code Issues Projects Releases Wiki Activity

[LoopAccesses] Handle case when no memchecks are needed after partitioning

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233930 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adam Nemet 2015-04-02 17:51:57 +00:00
parent 2647380f59
commit e1aa33fb9a
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Analysis/LoopAccessAnalysis.cpp
View File

@ -1211,9 +1211,8 @@ static Instruction *getFirstInst(Instruction *FirstInst, Value *V,
std::pair<Instruction *, Instruction *> LoopAccessInfo::addRuntimeCheck(
Instruction *Loc, const SmallVectorImpl<int> *PtrPartition) const {
Instruction *tnullptr = nullptr;
if (!PtrRtCheck.Need)
return std::pair<Instruction *, Instruction *>(tnullptr, tnullptr);
return std::make_pair(nullptr, nullptr);
unsigned NumPointers = PtrRtCheck.Pointers.size();
SmallVector<TrackingVH<Value> , 2> Starts;
@ -1284,6 +1283,9 @@ std::pair<Instruction *, Instruction *> LoopAccessInfo::addRuntimeCheck(
}
}
if (!MemoryRuntimeCheck)
return std::make_pair(nullptr, nullptr);
// We have to do this trickery because the IRBuilder might fold the check to a
// constant expression in which case there is no Instruction anchored in a
// the block.