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invert to if's to make the logic simpler

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22641 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-04 00:40:47 +00:00
parent f9186596f0
commit a4479ad25f
1 changed files with 11 additions and 14 deletions
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25
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -405,21 +405,18 @@ bool LoopStrengthReduce::AddUsersIfInteresting(Instruction *I, Loop *L) {
}
// Next, see if this user is analyzable itself!
if (!AddUsersIfInteresting(User, L)) {
if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(User)) {
// If this is a getelementptr instruction, figure out what linear
// expression of induction variable is actually being used.
//
if (AnalyzedGEPs.insert(GEP).second) // Not already analyzed?
AnalyzeGetElementPtrUsers(GEP, I, L);
} else {
DEBUG(std::cerr << "FOUND USER: " << *User
<< " OF SCEV: " << *ISE << "\n");
if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(User)) {
// If this is a getelementptr instruction, figure out what linear
// expression of induction variable is actually being used.
if (AnalyzedGEPs.insert(GEP).second) // Not already analyzed?
AnalyzeGetElementPtrUsers(GEP, I, L);
} else if (!AddUsersIfInteresting(User, L)) {
DEBUG(std::cerr << "FOUND USER: " << *User
<< " OF SCEV: " << *ISE << "\n");
// Okay, we found a user that we cannot reduce. Analyze the instruction
// and decide what to do with it.
IVUsesByStride[Step].addUser(Start, User, I);
}
// Okay, we found a user that we cannot reduce. Analyze the instruction
// and decide what to do with it.
IVUsesByStride[Step].addUser(Start, User, I);
}
}
return true;