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LSR itself doesn't need LoopInfo.

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llvm-svn: 91283
This commit is contained in:
Dan Gohman 2009-12-14 17:02:34 +00:00
parent 449298eb08
commit 44a2a502f2
1 changed files with 2 additions and 6 deletions
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8
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -27,7 +27,6 @@
#include "llvm/Type.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Analysis/IVUsers.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/LoopPass.h"
#include "llvm/Analysis/ScalarEvolutionExpander.h"
#include "llvm/Transforms/Utils/AddrModeMatcher.h"
@ -84,7 +83,6 @@ namespace {
class LoopStrengthReduce : public LoopPass {
IVUsers *IU;
LoopInfo *LI;
ScalarEvolution *SE;
bool Changed;
@ -115,12 +113,11 @@ namespace {
// We split critical edges, so we change the CFG. However, we do update
// many analyses if they are around.
AU.addPreservedID(LoopSimplifyID);
AU.addPreserved<LoopInfo>();
AU.addPreserved("loops");
AU.addPreserved("domfrontier");
AU.addPreserved("domtree");
AU.addRequiredID(LoopSimplifyID);
AU.addRequired<LoopInfo>();
AU.addRequired<ScalarEvolution>();
AU.addPreserved<ScalarEvolution>();
AU.addRequired<IVUsers>();
@ -259,7 +256,7 @@ static bool containsAddRecFromDifferentLoop(const SCEV *S, Loop *L) {
if (newLoop == L)
return false;
// if newLoop is an outer loop of L, this is OK.
if (!LoopInfo::isNotAlreadyContainedIn(L, newLoop))
if (!newLoop->contains(L->getHeader()))
return false;
}
return true;
@ -2720,7 +2717,6 @@ bool LoopStrengthReduce::OptimizeLoopCountIV(Loop *L) {
bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) {
IU = &getAnalysis<IVUsers>();
LI = &getAnalysis<LoopInfo>();
SE = &getAnalysis<ScalarEvolution>();
Changed = false;