diff options
Diffstat (limited to 'lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 60 |
1 files changed, 31 insertions, 29 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 9a5a226ebb..ed32f50cc6 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -380,9 +380,9 @@ namespace { } void BasedUser::dump() const { - cerr << " Base=" << *Base; - cerr << " Imm=" << *Imm; - cerr << " Inst: " << *Inst; + errs() << " Base=" << *Base; + errs() << " Imm=" << *Imm; + errs() << " Inst: " << *Inst; } Value *BasedUser::InsertCodeForBaseAtPosition(const SCEV *const &NewBase, @@ -461,9 +461,10 @@ void BasedUser::RewriteInstructionToUseNewBase(const SCEV *const &NewBase, // Replace the use of the operand Value with the new Phi we just created. Inst->replaceUsesOfWith(OperandValToReplace, NewVal); - DOUT << " Replacing with "; - DEBUG(WriteAsOperand(*DOUT, NewVal, /*PrintType=*/false)); - DOUT << ", which has value " << *NewBase << " plus IMM " << *Imm << "\n"; + DEBUG(errs() << " Replacing with "); + DEBUG(WriteAsOperand(errs(), NewVal, /*PrintType=*/false)); + DEBUG(errs() << ", which has value " << *NewBase << " plus IMM " + << *Imm << "\n"); return; } @@ -518,9 +519,10 @@ void BasedUser::RewriteInstructionToUseNewBase(const SCEV *const &NewBase, Code = InsertCodeForBaseAtPosition(NewBase, PN->getType(), Rewriter, InsertPt, L, LI); - DOUT << " Changing PHI use to "; - DEBUG(WriteAsOperand(*DOUT, Code, /*PrintType=*/false)); - DOUT << ", which has value " << *NewBase << " plus IMM " << *Imm << "\n"; + DEBUG(errs() << " Changing PHI use to "); + DEBUG(WriteAsOperand(errs(), Code, /*PrintType=*/false)); + DEBUG(errs() << ", which has value " << *NewBase << " plus IMM " + << *Imm << "\n"); } // Replace the use of the operand Value with the new Phi we just created. @@ -1373,7 +1375,7 @@ LoopStrengthReduce::PrepareToStrengthReduceFully( const SCEV *CommonExprs, const Loop *L, SCEVExpander &PreheaderRewriter) { - DOUT << " Fully reducing all users\n"; + DEBUG(errs() << " Fully reducing all users\n"); // Rewrite the UsersToProcess records, creating a separate PHI for each // unique Base value. @@ -1422,7 +1424,7 @@ LoopStrengthReduce::PrepareToStrengthReduceWithNewPhi( Instruction *IVIncInsertPt, const Loop *L, SCEVExpander &PreheaderRewriter) { - DOUT << " Inserting new PHI:\n"; + DEBUG(errs() << " Inserting new PHI:\n"); PHINode *Phi = InsertAffinePhi(SE->getUnknown(CommonBaseV), Stride, IVIncInsertPt, L, @@ -1435,9 +1437,9 @@ LoopStrengthReduce::PrepareToStrengthReduceWithNewPhi( for (unsigned i = 0, e = UsersToProcess.size(); i != e; ++i) UsersToProcess[i].Phi = Phi; - DOUT << " IV="; - DEBUG(WriteAsOperand(*DOUT, Phi, /*PrintType=*/false)); - DOUT << "\n"; + DEBUG(errs() << " IV="); + DEBUG(WriteAsOperand(errs(), Phi, /*PrintType=*/false)); + DEBUG(errs() << "\n"); } /// PrepareToStrengthReduceFromSmallerStride - Prepare for the given users to @@ -1450,8 +1452,8 @@ LoopStrengthReduce::PrepareToStrengthReduceFromSmallerStride( Value *CommonBaseV, const IVExpr &ReuseIV, Instruction *PreInsertPt) { - DOUT << " Rewriting in terms of existing IV of STRIDE " << *ReuseIV.Stride - << " and BASE " << *ReuseIV.Base << "\n"; + DEBUG(errs() << " Rewriting in terms of existing IV of STRIDE " + << *ReuseIV.Stride << " and BASE " << *ReuseIV.Base << "\n"); // All the users will share the reused IV. for (unsigned i = 0, e = UsersToProcess.size(); i != e; ++i) @@ -1558,7 +1560,7 @@ void LoopStrengthReduce::StrengthReduceStridedIVUsers(const SCEV *const &Stride, UsersToProcess, TLI); if (DoSink) { - DOUT << " Sinking " << *Imm << " back down into uses\n"; + DEBUG(errs() << " Sinking " << *Imm << " back down into uses\n"); for (unsigned i = 0, e = UsersToProcess.size(); i != e; ++i) UsersToProcess[i].Imm = SE->getAddExpr(UsersToProcess[i].Imm, Imm); CommonExprs = NewCommon; @@ -1570,9 +1572,9 @@ void LoopStrengthReduce::StrengthReduceStridedIVUsers(const SCEV *const &Stride, // Now that we know what we need to do, insert the PHI node itself. // - DOUT << "LSR: Examining IVs of TYPE " << *ReplacedTy << " of STRIDE " - << *Stride << ":\n" - << " Common base: " << *CommonExprs << "\n"; + DEBUG(errs() << "LSR: Examining IVs of TYPE " << *ReplacedTy << " of STRIDE " + << *Stride << ":\n" + << " Common base: " << *CommonExprs << "\n"); SCEVExpander Rewriter(*SE); SCEVExpander PreheaderRewriter(*SE); @@ -1634,10 +1636,10 @@ void LoopStrengthReduce::StrengthReduceStridedIVUsers(const SCEV *const &Stride, if (!Base->isZero()) { BaseV = PreheaderRewriter.expandCodeFor(Base, 0, PreInsertPt); - DOUT << " INSERTING code for BASE = " << *Base << ":"; + DEBUG(errs() << " INSERTING code for BASE = " << *Base << ":"); if (BaseV->hasName()) - DOUT << " Result value name = %" << BaseV->getNameStr(); - DOUT << "\n"; + DEBUG(errs() << " Result value name = %" << BaseV->getName()); + DEBUG(errs() << "\n"); // If BaseV is a non-zero constant, make sure that it gets inserted into // the preheader, instead of being forward substituted into the uses. We @@ -1658,15 +1660,15 @@ void LoopStrengthReduce::StrengthReduceStridedIVUsers(const SCEV *const &Stride, // FIXME: Use emitted users to emit other users. BasedUser &User = UsersToProcess.back(); - DOUT << " Examining "; + DEBUG(errs() << " Examining "); if (User.isUseOfPostIncrementedValue) - DOUT << "postinc"; + DEBUG(errs() << "postinc"); else - DOUT << "preinc"; - DOUT << " use "; - DEBUG(WriteAsOperand(*DOUT, UsersToProcess.back().OperandValToReplace, + DEBUG(errs() << "preinc"); + DEBUG(errs() << " use "); + DEBUG(WriteAsOperand(errs(), UsersToProcess.back().OperandValToReplace, /*PrintType=*/false)); - DOUT << " in Inst: " << *(User.Inst); + DEBUG(errs() << " in Inst: " << *User.Inst); // If this instruction wants to use the post-incremented value, move it // after the post-inc and use its value instead of the PHI. |