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Use range-based for loops and const-correct a few things.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222908 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2014-11-28 03:53:00 +00:00
parent 402b6fdf9d
commit 99a2170dab
1 changed files with 40 additions and 59 deletions
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99
utils/TableGen/AsmMatcherEmitter.cpp
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@ -515,7 +515,7 @@ struct MatchableInfo {
/// couldMatchAmbiguouslyWith - Check whether this matchable could
/// ambiguously match the same set of operands as \p RHS (without being a
/// strictly superior match).
bool couldMatchAmbiguouslyWith(const MatchableInfo &RHS) {
bool couldMatchAmbiguouslyWith(const MatchableInfo &RHS) const {
// The primary comparator is the instruction mnemonic.
if (Mnemonic != RHS.Mnemonic)
return false;
@ -551,7 +551,7 @@ struct MatchableInfo {
return !(HasLT ^ HasGT);
}
void dump();
void dump() const;
private:
void tokenizeAsmString(const AsmMatcherInfo &Info);
@ -573,7 +573,7 @@ struct SubtargetFeatureInfo {
return "Feature_" + TheDef->getName();
}
void dump() {
void dump() const {
errs() << getEnumName() << " " << Index << "\n";
TheDef->dump();
}
@ -581,10 +581,10 @@ struct SubtargetFeatureInfo {
struct OperandMatchEntry {
unsigned OperandMask;
MatchableInfo* MI;
const MatchableInfo* MI;
ClassInfo *CI;
static OperandMatchEntry create(MatchableInfo* mi, ClassInfo *ci,
static OperandMatchEntry create(const MatchableInfo *mi, ClassInfo *ci,
unsigned opMask) {
OperandMatchEntry X;
X.OperandMask = opMask;
@ -670,8 +670,7 @@ public:
/// given operand.
SubtargetFeatureInfo *getSubtargetFeature(Record *Def) const {
assert(Def->isSubClassOf("Predicate") && "Invalid predicate type!");
std::map<Record*, SubtargetFeatureInfo*, LessRecordByID>::const_iterator I =
SubtargetFeatures.find(Def);
const auto &I = SubtargetFeatures.find(Def);
return I == SubtargetFeatures.end() ? nullptr : I->second;
}
@ -682,11 +681,11 @@ public:
} // End anonymous namespace
void MatchableInfo::dump() {
void MatchableInfo::dump() const {
errs() << TheDef->getName() << " -- " << "flattened:\"" << AsmString <<"\"\n";
for (unsigned i = 0, e = AsmOperands.size(); i != e; ++i) {
AsmOperand &Op = AsmOperands[i];
const AsmOperand &Op = AsmOperands[i];
errs() << " op[" << i << "] = " << Op.Class->ClassName << " - ";
errs() << '\"' << Op.Token << "\"\n";
}
@ -1274,16 +1273,13 @@ void AsmMatcherInfo::buildOperandMatchInfo() {
typedef std::map<ClassInfo *, unsigned, less_ptr<ClassInfo>> OpClassMaskTy;
OpClassMaskTy OpClassMask;
for (std::vector<MatchableInfo*>::const_iterator it =
Matchables.begin(), ie = Matchables.end();
it != ie; ++it) {
MatchableInfo &II = **it;
for (const MatchableInfo *MI : Matchables) {
OpClassMask.clear();
// Keep track of all operands of this instructions which belong to the
// same class.
for (unsigned i = 0, e = II.AsmOperands.size(); i != e; ++i) {
MatchableInfo::AsmOperand &Op = II.AsmOperands[i];
for (unsigned i = 0, e = MI->AsmOperands.size(); i != e; ++i) {
const MatchableInfo::AsmOperand &Op = MI->AsmOperands[i];
if (Op.Class->ParserMethod.empty())
continue;
unsigned &OperandMask = OpClassMask[Op.Class];
@ -1291,11 +1287,10 @@ void AsmMatcherInfo::buildOperandMatchInfo() {
}
// Generate operand match info for each mnemonic/operand class pair.
for (OpClassMaskTy::iterator iit = OpClassMask.begin(),
iie = OpClassMask.end(); iit != iie; ++iit) {
unsigned OpMask = iit->second;
ClassInfo *CI = iit->first;
OperandMatchInfo.push_back(OperandMatchEntry::create(&II, CI, OpMask));
for (const auto &OCM : OpClassMask) {
unsigned OpMask = OCM.second;
ClassInfo *CI = OCM.first;
OperandMatchInfo.push_back(OperandMatchEntry::create(MI, CI, OpMask));
}
}
}
@ -2186,10 +2181,8 @@ static void emitSubtargetFeatureFlagEnumeration(AsmMatcherInfo &Info,
<< "instruction matching.\n";
OS << "enum SubtargetFeatureFlag : " << getMinimalRequiredFeaturesType(Info)
<< " {\n";
for (std::map<Record*, SubtargetFeatureInfo*, LessRecordByID>::const_iterator
it = Info.SubtargetFeatures.begin(),
ie = Info.SubtargetFeatures.end(); it != ie; ++it) {
SubtargetFeatureInfo &SFI = *it->second;
for (const auto &SF : Info.SubtargetFeatures) {
SubtargetFeatureInfo &SFI = *SF.second;
OS << " " << SFI.getEnumName() << " = (1ULL << " << SFI.Index << "),\n";
}
OS << " Feature_None = 0\n";
@ -2224,10 +2217,8 @@ static void emitGetSubtargetFeatureName(AsmMatcherInfo &Info, raw_ostream &OS) {
<< "static const char *getSubtargetFeatureName(uint64_t Val) {\n";
if (!Info.SubtargetFeatures.empty()) {
OS << " switch(Val) {\n";
typedef std::map<Record*, SubtargetFeatureInfo*, LessRecordByID> RecFeatMap;
for (RecFeatMap::const_iterator it = Info.SubtargetFeatures.begin(),
ie = Info.SubtargetFeatures.end(); it != ie; ++it) {
SubtargetFeatureInfo &SFI = *it->second;
for (const auto &SF : Info.SubtargetFeatures) {
SubtargetFeatureInfo &SFI = *SF.second;
// FIXME: Totally just a placeholder name to get the algorithm working.
OS << " case " << SFI.getEnumName() << ": return \""
<< SFI.TheDef->getValueAsString("PredicateName") << "\";\n";
@ -2251,10 +2242,8 @@ static void emitComputeAvailableFeatures(AsmMatcherInfo &Info,
OS << "uint64_t " << Info.Target.getName() << ClassName << "::\n"
<< "ComputeAvailableFeatures(uint64_t FB) const {\n";
OS << " uint64_t Features = 0;\n";
for (std::map<Record*, SubtargetFeatureInfo*, LessRecordByID>::const_iterator
it = Info.SubtargetFeatures.begin(),
ie = Info.SubtargetFeatures.end(); it != ie; ++it) {
SubtargetFeatureInfo &SFI = *it->second;
for (const auto &SF : Info.SubtargetFeatures) {
SubtargetFeatureInfo &SFI = *SF.second;
OS << " if (";
std::string CondStorage =
@ -2608,10 +2597,8 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
less_ptr<MatchableInfo>());
DEBUG_WITH_TYPE("instruction_info", {
for (std::vector<MatchableInfo*>::iterator
it = Info.Matchables.begin(), ie = Info.Matchables.end();
it != ie; ++it)
(*it)->dump();
for (const MatchableInfo *MI : Info.Matchables)
MI->dump();
});
// Check for ambiguous matchables.
@ -2619,8 +2606,8 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
unsigned NumAmbiguous = 0;
for (unsigned i = 0, e = Info.Matchables.size(); i != e; ++i) {
for (unsigned j = i + 1; j != e; ++j) {
MatchableInfo &A = *Info.Matchables[i];
MatchableInfo &B = *Info.Matchables[j];
const MatchableInfo &A = *Info.Matchables[i];
const MatchableInfo &B = *Info.Matchables[j];
if (A.couldMatchAmbiguouslyWith(B)) {
errs() << "warning: ambiguous matchables:\n";
@ -2740,15 +2727,12 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
size_t MaxNumOperands = 0;
unsigned MaxMnemonicIndex = 0;
bool HasDeprecation = false;
for (std::vector<MatchableInfo*>::const_iterator it =
Info.Matchables.begin(), ie = Info.Matchables.end();
it != ie; ++it) {
MatchableInfo &II = **it;
MaxNumOperands = std::max(MaxNumOperands, II.AsmOperands.size());
HasDeprecation |= II.HasDeprecation;
for (const MatchableInfo *MI : Info.Matchables) {
MaxNumOperands = std::max(MaxNumOperands, MI->AsmOperands.size());
HasDeprecation |= MI->HasDeprecation;
// Store a pascal-style length byte in the mnemonic.
std::string LenMnemonic = char(II.Mnemonic.size()) + II.Mnemonic.str();
std::string LenMnemonic = char(MI->Mnemonic.size()) + MI->Mnemonic.str();
MaxMnemonicIndex = std::max(MaxMnemonicIndex,
StringTable.GetOrAddStringOffset(LenMnemonic, false));
}
@ -2806,33 +2790,30 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
OS << "static const MatchEntry MatchTable" << VC << "[] = {\n";
for (std::vector<MatchableInfo*>::const_iterator it =
Info.Matchables.begin(), ie = Info.Matchables.end();
it != ie; ++it) {
MatchableInfo &II = **it;
if (II.AsmVariantID != AsmVariantNo)
for (const MatchableInfo *MI : Info.Matchables) {
if (MI->AsmVariantID != AsmVariantNo)
continue;
// Store a pascal-style length byte in the mnemonic.
std::string LenMnemonic = char(II.Mnemonic.size()) + II.Mnemonic.str();
std::string LenMnemonic = char(MI->Mnemonic.size()) + MI->Mnemonic.str();
OS << " { " << StringTable.GetOrAddStringOffset(LenMnemonic, false)
<< " /* " << II.Mnemonic << " */, "
<< " /* " << MI->Mnemonic << " */, "
<< Target.getName() << "::"
<< II.getResultInst()->TheDef->getName() << ", "
<< II.ConversionFnKind << ", ";
<< MI->getResultInst()->TheDef->getName() << ", "
<< MI->ConversionFnKind << ", ";
// Write the required features mask.
if (!II.RequiredFeatures.empty()) {
for (unsigned i = 0, e = II.RequiredFeatures.size(); i != e; ++i) {
if (!MI->RequiredFeatures.empty()) {
for (unsigned i = 0, e = MI->RequiredFeatures.size(); i != e; ++i) {
if (i) OS << "|";
OS << II.RequiredFeatures[i]->getEnumName();
OS << MI->RequiredFeatures[i]->getEnumName();
}
} else
OS << "0";
OS << ", { ";
for (unsigned i = 0, e = II.AsmOperands.size(); i != e; ++i) {
MatchableInfo::AsmOperand &Op = II.AsmOperands[i];
for (unsigned i = 0, e = MI->AsmOperands.size(); i != e; ++i) {
const MatchableInfo::AsmOperand &Op = MI->AsmOperands[i];
if (i) OS << ", ";
OS << Op.Class->Name;