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[LAA] Comment how memchecks are codegened

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llvm-svn: 245465
This commit is contained in:
Adam Nemet 2015-08-19 17:24:36 +00:00
parent 9832a30abc
commit 2568349cb6
1 changed files with 2 additions and 0 deletions
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2
lib/Analysis/LoopAccessAnalysis.cpp
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@ -1668,6 +1668,8 @@ std::pair<Instruction *, Instruction *> LoopAccessInfo::addRuntimeChecks(
for (const auto &Check : ExpandedChecks) {
const PointerBounds &A = Check.first, &B = Check.second;
// Check if two pointers (A and B) conflict where conflict is computed as:
// start(A) <= end(B) && start(B) <= end(A)
unsigned AS0 = A.Start->getType()->getPointerAddressSpace();
unsigned AS1 = B.Start->getType()->getPointerAddressSpace();