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[LoopAccesses] Add debug message to indicate the result of the analysis

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The debug message was pretty confusing here.  It only reported the
situation with memchecks without the result of the dependence analysis.

Now it prints whether the loop is safe from the POV of the dependence
analysis and if yes, whether we need memchecks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231854 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adam Nemet 2015-03-10 21:47:39 +00:00
parent b3d108b39a
commit 31f1cc5790
1 changed files with 7 additions and 4 deletions
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11
lib/Analysis/LoopAccessAnalysis.cpp
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@ -1161,12 +1161,15 @@ void LoopAccessInfo::analyzeLoop(const ValueToValueMap &Strides) {
}
}
if (!CanVecMem)
if (CanVecMem)
DEBUG(dbgs() << "LAA: No unsafe dependent memory operations in loop. We"
<< (NeedRTCheck ? "" : " don't")
<< " need a runtime memory check.\n");
else {
emitAnalysis(LoopAccessReport() <<
"unsafe dependent memory operations in loop");
DEBUG(dbgs() << "LAA: We" << (NeedRTCheck ? "" : " don't") <<
" need a runtime memory check.\n");
DEBUG(dbgs() << "LAA: unsafe dependent memory operations in loop\n");
}
}
bool LoopAccessInfo::blockNeedsPredication(BasicBlock *BB, Loop *TheLoop,