Transforms/Scalar/LoopStrengthReduce.cpp

1715                                   const LSRFixup &LF,
1719   Value *Expand(const LSRFixup &LF,
1724   void RewriteForPHI(PHINode *PN, const LSRFixup &LF,
1729   void Rewrite(const LSRFixup &LF,
2923     LSRFixup &LF = getNewFixup();
2924     LF.UserInst = UserInst;
2925     LF.OperandValToReplace = UI->getOperandValToReplace();
2926     LF.PostIncLoops = UI->getPostIncLoops();
2930     if (isAddressUse(LF.UserInst, LF.OperandValToReplace)) {
2932       AccessTy = getAccessType(LF.UserInst);
2943     if (ICmpInst *CI = dyn_cast<ICmpInst>(LF.UserInst))
2948         if (NV == LF.OperandValToReplace) {
2961                                      LF.PostIncLoops, SE, DT);
2976     LF.LUIdx = P.first;
2977     LF.Offset = P.second;
2978     LSRUse &LU = Uses[LF.LUIdx];
2979     LU.AllFixupsOutsideLoop &= LF.isUseFullyOutsideLoop(L);
2982         SE.getTypeSizeInBits(LF.OperandValToReplace->getType()))
2983       LU.WidestFixupType = LF.OperandValToReplace->getType();
2987       InsertInitialFormula(S, LU, LF.LUIdx);
2988       CountRegisters(LU.Formulae.back(), LF.LUIdx);
3109         LSRFixup &LF = getNewFixup();
3110         LF.UserInst = const_cast<Instruction *>(UserInst);
3111         LF.OperandValToReplace = UI.getUse();
3113         LF.LUIdx = P.first;
3114         LF.Offset = P.second;
3115         LSRUse &LU = Uses[LF.LUIdx];
3116         LU.AllFixupsOutsideLoop &= LF.isUseFullyOutsideLoop(L);
3119             SE.getTypeSizeInBits(LF.OperandValToReplace->getType()))
3120           LU.WidestFixupType = LF.OperandValToReplace->getType();
3121         InsertSupplementalFormula(U, LU, LF.LUIdx);
4313                                            const LSRFixup &LF,
4320   if (Instruction *I = dyn_cast<Instruction>(LF.OperandValToReplace))
4324           dyn_cast<Instruction>(cast<ICmpInst>(LF.UserInst)->getOperand(1)))
4326   if (LF.PostIncLoops.count(L)) {
4327     if (LF.isUseFullyOutsideLoop(L))
4334   for (PostIncLoopSet::const_iterator I = LF.PostIncLoops.begin(),
4335        E = LF.PostIncLoops.end(); I != E; ++I) {
4377 Value *LSRInstance::Expand(const LSRFixup &LF,
4382   const LSRUse &LU = Uses[LF.LUIdx];
4384     return LF.OperandValToReplace;
4388   IP = AdjustInsertPositionForExpand(IP, LF, LU, Rewriter);
4392   Rewriter.setPostInc(LF.PostIncLoops);
4395   Type *OpTy = LF.OperandValToReplace->getType();
4417     PostIncLoopSet &Loops = const_cast<PostIncLoopSet &>(LF.PostIncLoops);
4419                                  LF.UserInst, LF.OperandValToReplace,
4431     PostIncLoopSet &Loops = const_cast<PostIncLoopSet &>(LF.PostIncLoops);
4433                                      LF.UserInst, LF.OperandValToReplace,
4480   int64_t Offset = (uint64_t)F.BaseOffset + LF.Offset;
4519     ICmpInst *CI = cast<ICmpInst>(LF.UserInst);
4554                                 const LSRFixup &LF,
4561     if (PN->getIncomingValue(i) == LF.OperandValToReplace) {
4607         Value *FullV = Expand(LF, F, BB->getTerminator(), Rewriter, DeadInsts);
4610         Type *OpTy = LF.OperandValToReplace->getType();
4615                              FullV, LF.OperandValToReplace->getType(),
4627 void LSRInstance::Rewrite(const LSRFixup &LF,
4634   if (PHINode *PN = dyn_cast<PHINode>(LF.UserInst)) {
4635     RewriteForPHI(PN, LF, F, Rewriter, DeadInsts, P);
4637     Value *FullV = Expand(LF, F, LF.UserInst, Rewriter, DeadInsts);
4640     Type *OpTy = LF.OperandValToReplace->getType();
4644                          FullV, OpTy, "tmp", LF.UserInst);
4650     // its new value may happen to be equal to LF.OperandValToReplace, in
4653     if (Uses[LF.LUIdx].Kind == LSRUse::ICmpZero)
4654       LF.UserInst->setOperand(0, FullV);
4656       LF.UserInst->replaceUsesOfWith(LF.OperandValToReplace, FullV);
4659   DeadInsts.push_back(LF.OperandValToReplace);