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Use std::vector instead of a hard-coded array. The length of that array could

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get *very* large, but we only need it to be the size of the number of pregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108412 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2010-07-15 06:04:38 +00:00
parent f7f72bc1ea
commit e010409cab
2 changed files with 20 additions and 17 deletions
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lib/CodeGen/AggressiveAntiDepBreaker.cpp
+12 -11
View File
@@ -22,7 +22,6 @@
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
@@ -42,6 +41,8 @@ DebugMod("agg-antidep-debugmod",
AggressiveAntiDepState::AggressiveAntiDepState(const unsigned TargetRegs,
MachineBasicBlock *BB) :
NumTargetRegs(TargetRegs), GroupNodes(TargetRegs, 0) {
KillIndices.reserve(TargetRegs);
DefIndices.reserve(TargetRegs);
const unsigned BBSize = BB->size();
for (unsigned i = 0; i < NumTargetRegs; ++i) {
@@ -145,8 +146,8 @@ void AggressiveAntiDepBreaker::StartBlock(MachineBasicBlock *BB) {
State = new AggressiveAntiDepState(TRI->getNumRegs(), BB);
bool IsReturnBlock = (!BB->empty() && BB->back().getDesc().isReturn());
unsigned *KillIndices = State->GetKillIndices();
unsigned *DefIndices = State->GetDefIndices();
std::vector<unsigned> &KillIndices = State->GetKillIndices();
std::vector<unsigned> &DefIndices = State->GetDefIndices();
// Determine the live-out physregs for this block.
if (IsReturnBlock) {
@@ -226,7 +227,7 @@ void AggressiveAntiDepBreaker::Observe(MachineInstr *MI, unsigned Count,
DEBUG(MI->dump());
DEBUG(dbgs() << "\tRegs:");
unsigned *DefIndices = State->GetDefIndices();
std::vector<unsigned> &DefIndices = State->GetDefIndices();
for (unsigned Reg = 0; Reg != TRI->getNumRegs(); ++Reg) {
// If Reg is current live, then mark that it can't be renamed as
// we don't know the extent of its live-range anymore (now that it
@@ -328,8 +329,8 @@ void AggressiveAntiDepBreaker::HandleLastUse(unsigned Reg, unsigned KillIdx,
const char *tag,
const char *header,
const char *footer) {
unsigned *KillIndices = State->GetKillIndices();
unsigned *DefIndices = State->GetDefIndices();
std::vector<unsigned> &KillIndices = State->GetKillIndices();
std::vector<unsigned> &DefIndices = State->GetDefIndices();
std::multimap<unsigned, AggressiveAntiDepState::RegisterReference>&
RegRefs = State->GetRegRefs();
@@ -364,7 +365,7 @@ void AggressiveAntiDepBreaker::HandleLastUse(unsigned Reg, unsigned KillIdx,
void AggressiveAntiDepBreaker::PrescanInstruction(MachineInstr *MI,
unsigned Count,
std::set<unsigned>& PassthruRegs) {
unsigned *DefIndices = State->GetDefIndices();
std::vector<unsigned> &DefIndices = State->GetDefIndices();
std::multimap<unsigned, AggressiveAntiDepState::RegisterReference>&
RegRefs = State->GetRegRefs();
@@ -560,8 +561,8 @@ bool AggressiveAntiDepBreaker::FindSuitableFreeRegisters(
unsigned AntiDepGroupIndex,
RenameOrderType& RenameOrder,
std::map<unsigned, unsigned> &RenameMap) {
unsigned *KillIndices = State->GetKillIndices();
unsigned *DefIndices = State->GetDefIndices();
std::vector<unsigned> &KillIndices = State->GetKillIndices();
std::vector<unsigned> &DefIndices = State->GetDefIndices();
std::multimap<unsigned, AggressiveAntiDepState::RegisterReference>&
RegRefs = State->GetRegRefs();
@@ -733,8 +734,8 @@ unsigned AggressiveAntiDepBreaker::BreakAntiDependencies(
MachineBasicBlock::iterator Begin,
MachineBasicBlock::iterator End,
unsigned InsertPosIndex) {
unsigned *KillIndices = State->GetKillIndices();
unsigned *DefIndices = State->GetDefIndices();
std::vector<unsigned> &KillIndices = State->GetKillIndices();
std::vector<unsigned> &DefIndices = State->GetDefIndices();
std::multimap<unsigned, AggressiveAntiDepState::RegisterReference>&
RegRefs = State->GetRegRefs();