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Remove distasteful method which is really part of the indvars pass 

llvm-svn: 14359
This commit is contained in:
Chris Lattner 2004-06-24 06:52:20 +00:00
parent 7a002d6010
commit 5e08b93a34
2 changed files with 0 additions and 19 deletions
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6
llvm/include/llvm/Analysis/ScalarEvolution.h
View File

@ -199,12 +199,6 @@ namespace llvm {
/// that no dangling references are left around.
void deleteInstructionFromRecords(Instruction *I) const;
/// shouldSubstituteIndVar - Return true if we should perform induction
/// variable substitution for this variable. This is a hack because we
/// don't have a strength reduction pass yet. When we do we will promote
/// all vars, because we can strength reduce them later as desired.
bool shouldSubstituteIndVar(const SCEV *S) const;
virtual bool runOnFunction(Function &F);
virtual void releaseMemory();
virtual void getAnalysisUsage(AnalysisUsage &AU) const;

13
llvm/lib/Analysis/ScalarEvolution.cpp
View File

@ -2177,19 +2177,6 @@ void ScalarEvolution::deleteInstructionFromRecords(Instruction *I) const {
return ((ScalarEvolutionsImpl*)Impl)->deleteInstructionFromRecords(I);
}
/// shouldSubstituteIndVar - Return true if we should perform induction variable
/// substitution for this variable. This is a hack because we don't have a
/// strength reduction pass yet. When we do we will promote all vars, because
/// we can strength reduce them later as desired.
bool ScalarEvolution::shouldSubstituteIndVar(const SCEV *S) const {
// Don't substitute high degree polynomials.
if (const SCEVAddRecExpr *AddRec = dyn_cast<SCEVAddRecExpr>(S))
if (AddRec->getNumOperands() > 3) return false;
return true;
}
static void PrintLoopInfo(std::ostream &OS, const ScalarEvolution *SE,
const Loop *L) {
// Print all inner loops first