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Removed #include <iostream> and replaced with llvm_* streams.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31923 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2006-11-26 09:46:52 +00:00
parent 62c804a3ea
commit b742703137
11 changed files with 100 additions and 115 deletions
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35
lib/Transforms/Scalar/LoopUnswitch.cpp
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@ -40,7 +40,6 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/CommandLine.h"
#include <algorithm>
#include <iostream>
#include <set>
using namespace llvm;
@ -369,9 +368,9 @@ bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val,Loop *L){
// FIXME: this should estimate growth by the amount of code shared by the
// resultant unswitched loops.
//
DEBUG(std::cerr << "NOT unswitching loop %"
<< L->getHeader()->getName() << ", cost too high: "
<< L->getBlocks().size() << "\n");
DOUT << "NOT unswitching loop %"
<< L->getHeader()->getName() << ", cost too high: "
<< L->getBlocks().size() << "\n";
return false;
}
@ -508,10 +507,10 @@ static void EmitPreheaderBranchOnCondition(Value *LIC, Constant *Val,
void LoopUnswitch::UnswitchTrivialCondition(Loop *L, Value *Cond,
Constant *Val,
BasicBlock *ExitBlock) {
DEBUG(std::cerr << "loop-unswitch: Trivial-Unswitch loop %"
<< L->getHeader()->getName() << " [" << L->getBlocks().size()
<< " blocks] in Function " << L->getHeader()->getParent()->getName()
<< " on cond: " << *Val << " == " << *Cond << "\n");
DOUT << "loop-unswitch: Trivial-Unswitch loop %"
<< L->getHeader()->getName() << " [" << L->getBlocks().size()
<< " blocks] in Function " << L->getHeader()->getParent()->getName()
<< " on cond: " << *Val << " == " << *Cond << "\n";
// First step, split the preheader, so that we know that there is a safe place
// to insert the conditional branch. We will change 'OrigPH' to have a
@ -553,10 +552,10 @@ void LoopUnswitch::UnswitchTrivialCondition(Loop *L, Value *Cond,
void LoopUnswitch::UnswitchNontrivialCondition(Value *LIC, Constant *Val,
Loop *L) {
Function *F = L->getHeader()->getParent();
DEBUG(std::cerr << "loop-unswitch: Unswitching loop %"
<< L->getHeader()->getName() << " [" << L->getBlocks().size()
<< " blocks] in Function " << F->getName()
<< " when '" << *Val << "' == " << *LIC << "\n");
DOUT << "loop-unswitch: Unswitching loop %"
<< L->getHeader()->getName() << " [" << L->getBlocks().size()
<< " blocks] in Function " << F->getName()
<< " when '" << *Val << "' == " << *LIC << "\n";
// LoopBlocks contains all of the basic blocks of the loop, including the
// preheader of the loop, the body of the loop, and the exit blocks of the
@ -721,7 +720,7 @@ static void RemoveFromWorklist(Instruction *I,
/// program, replacing all uses with V and update the worklist.
static void ReplaceUsesOfWith(Instruction *I, Value *V,
std::vector<Instruction*> &Worklist) {
DEBUG(std::cerr << "Replace with '" << *V << "': " << *I);
DOUT << "Replace with '" << *V << "': " << *I;
// Add uses to the worklist, which may be dead now.
for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
@ -780,7 +779,7 @@ void LoopUnswitch::RemoveBlockIfDead(BasicBlock *BB,
return;
}
DEBUG(std::cerr << "Nuking dead block: " << *BB);
DOUT << "Nuking dead block: " << *BB;
// Remove the instructions in the basic block from the worklist.
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
@ -1013,7 +1012,7 @@ void LoopUnswitch::SimplifyCode(std::vector<Instruction*> &Worklist) {
// Simple DCE.
if (isInstructionTriviallyDead(I)) {
DEBUG(std::cerr << "Remove dead instruction '" << *I);
DOUT << "Remove dead instruction '" << *I;
// Add uses to the worklist, which may be dead now.
for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
@ -1066,8 +1065,8 @@ void LoopUnswitch::SimplifyCode(std::vector<Instruction*> &Worklist) {
if (!SinglePred) continue; // Nothing to do.
assert(SinglePred == Pred && "CFG broken");
DEBUG(std::cerr << "Merging blocks: " << Pred->getName() << " <- "
<< Succ->getName() << "\n");
DOUT << "Merging blocks: " << Pred->getName() << " <- "
<< Succ->getName() << "\n";
// Resolve any single entry PHI nodes in Succ.
while (PHINode *PN = dyn_cast<PHINode>(Succ->begin()))
@ -1092,7 +1091,7 @@ void LoopUnswitch::SimplifyCode(std::vector<Instruction*> &Worklist) {
// remove dead blocks.
break; // FIXME: Enable.
DEBUG(std::cerr << "Folded branch: " << *BI);
DOUT << "Folded branch: " << *BI;
BasicBlock *DeadSucc = BI->getSuccessor(CB->getValue());
BasicBlock *LiveSucc = BI->getSuccessor(!CB->getValue());
DeadSucc->removePredecessor(BI->getParent(), true);