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[AVX] Make Inits Foldable

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Manage Inits in a FoldingSet.  This provides several benefits:

- Memory for Inits is properly managed

- Duplicate Inits are folded into Flyweights, saving memory

- It enforces const-correctness, protecting against certain classes
  of bugs

The above benefits allow Inits to be used in more contexts, which in
turn provides more dynamism to TableGen.  This enhanced capability
will be used by the AVX code generator to a fold common patterns
together.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134907 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene
2011-07-11 18:25:51 +00:00
parent 7ae0df4142
commit d4a9066c93
31 changed files with 1712 additions and 1002 deletions
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utils/TableGen/AsmMatcherEmitter.cpp
+12 -12
View File
@@ -869,7 +869,7 @@ AsmMatcherInfo::getOperandClass(const CGIOperandList::OperandInfo &OI,
int SubOpIdx) {
Record *Rec = OI.Rec;
if (SubOpIdx != -1)
Rec = dynamic_cast<DefInit*>(OI.MIOperandInfo->getArg(SubOpIdx))->getDef();
Rec = dynamic_cast<const DefInit*>(OI.MIOperandInfo->getArg(SubOpIdx))->getDef();
if (Rec->isSubClassOf("RegisterOperand")) {
// RegisterOperand may have an associated ParserMatchClass. If it does,
@@ -879,7 +879,7 @@ AsmMatcherInfo::getOperandClass(const CGIOperandList::OperandInfo &OI,
throw "Record `" + Rec->getName() +
"' does not have a ParserMatchClass!\n";
if (DefInit *DI= dynamic_cast<DefInit*>(R->getValue())) {
if (const DefInit *DI= dynamic_cast<const DefInit*>(R->getValue())) {
Record *MatchClass = DI->getDef();
if (ClassInfo *CI = AsmOperandClasses[MatchClass])
return CI;
@@ -1046,9 +1046,9 @@ void AsmMatcherInfo::BuildOperandClasses() {
ClassInfo *CI = AsmOperandClasses[*it];
CI->Kind = ClassInfo::UserClass0 + Index;
ListInit *Supers = (*it)->getValueAsListInit("SuperClasses");
const ListInit *Supers = (*it)->getValueAsListInit("SuperClasses");
for (unsigned i = 0, e = Supers->getSize(); i != e; ++i) {
DefInit *DI = dynamic_cast<DefInit*>(Supers->getElement(i));
const DefInit *DI = dynamic_cast<const DefInit*>(Supers->getElement(i));
if (!DI) {
PrintError((*it)->getLoc(), "Invalid super class reference!");
continue;
@@ -1065,28 +1065,28 @@ void AsmMatcherInfo::BuildOperandClasses() {
CI->ValueName = (*it)->getName();
// Get or construct the predicate method name.
Init *PMName = (*it)->getValueInit("PredicateMethod");
if (StringInit *SI = dynamic_cast<StringInit*>(PMName)) {
const Init *PMName = (*it)->getValueInit("PredicateMethod");
if (const StringInit *SI = dynamic_cast<const StringInit*>(PMName)) {
CI->PredicateMethod = SI->getValue();
} else {
assert(dynamic_cast<UnsetInit*>(PMName) &&
assert(dynamic_cast<const UnsetInit*>(PMName) &&
"Unexpected PredicateMethod field!");
CI->PredicateMethod = "is" + CI->ClassName;
}
// Get or construct the render method name.
Init *RMName = (*it)->getValueInit("RenderMethod");
if (StringInit *SI = dynamic_cast<StringInit*>(RMName)) {
const Init *RMName = (*it)->getValueInit("RenderMethod");
if (const StringInit *SI = dynamic_cast<const StringInit*>(RMName)) {
CI->RenderMethod = SI->getValue();
} else {
assert(dynamic_cast<UnsetInit*>(RMName) &&
assert(dynamic_cast<const UnsetInit*>(RMName) &&
"Unexpected RenderMethod field!");
CI->RenderMethod = "add" + CI->ClassName + "Operands";
}
// Get the parse method name or leave it as empty.
Init *PRMName = (*it)->getValueInit("ParserMethod");
if (StringInit *SI = dynamic_cast<StringInit*>(PRMName))
const Init *PRMName = (*it)->getValueInit("ParserMethod");
if (const StringInit *SI = dynamic_cast<const StringInit*>(PRMName))
CI->ParserMethod = SI->getValue();
AsmOperandClasses[*it] = CI;