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emit the mnemonic aliases in their own helper function instead of 

inline into MatchInstructionImpl.

llvm-svn: 117826
This commit is contained in:
Chris Lattner 2010-10-30 18:48:18 +00:00
parent 92ef573550
commit 477fba4f54
1 changed files with 17 additions and 6 deletions
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23
llvm/utils/TableGen/AsmMatcherEmitter.cpp
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@ -1515,23 +1515,28 @@ static void EmitComputeAvailableFeatures(CodeGenTarget &Target,
} }
/// EmitMnemonicAliases - If the target has any MnemonicAlias<> definitions, /// EmitMnemonicAliases - If the target has any MnemonicAlias<> definitions,
/// emit them. /// emit a function for them and return true, otherwise return false.
static void EmitMnemonicAliases(raw_ostream &OS) { static bool EmitMnemonicAliases(raw_ostream &OS) {
OS << "static void ApplyMnemonicAliases(StringRef &Mnemonic, "
"unsigned Features) {\n";
std::vector<Record*> Aliases = std::vector<Record*> Aliases =
Records.getAllDerivedDefinitions("MnemonicAlias"); Records.getAllDerivedDefinitions("MnemonicAlias");
if (Aliases.empty()) return; if (Aliases.empty()) return false;
OS << " // Process all MnemonicAliases to remap the mnemonic.\n";
std::vector<StringMatcher::StringPair> Cases; std::vector<StringMatcher::StringPair> Cases;
for (unsigned i = 0, e = Aliases.size(); i != e; ++i) { for (unsigned i = 0, e = Aliases.size(); i != e; ++i) {
Record *R = Aliases[i]; Record *R = Aliases[i];
Cases.push_back(std::make_pair(R->getValueAsString("FromMnemonic"), Cases.push_back(std::make_pair(R->getValueAsString("FromMnemonic"),
"Mnemonic = \"" + "Mnemonic = \"" +
R->getValueAsString("ToMnemonic") + R->getValueAsString("ToMnemonic") +
"\"; break;")); "\"; return;"));
} }
StringMatcher("Mnemonic", Cases, OS).Emit(); StringMatcher("Mnemonic", Cases, OS).Emit();
OS << "}\n";
return true;
} }
void AsmMatcherEmitter::run(raw_ostream &OS) { void AsmMatcherEmitter::run(raw_ostream &OS) {
@ -1617,6 +1622,9 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
OS << "\n#ifdef GET_MATCHER_IMPLEMENTATION\n"; OS << "\n#ifdef GET_MATCHER_IMPLEMENTATION\n";
OS << "#undef GET_MATCHER_IMPLEMENTATION\n\n"; OS << "#undef GET_MATCHER_IMPLEMENTATION\n\n";
// Generate the function that remaps for mnemonic aliases.
bool HasMnemonicAliases = EmitMnemonicAliases(OS);
// Generate the unified function to convert operands into an MCInst. // Generate the unified function to convert operands into an MCInst.
EmitConvertToMCInst(Target, Info.Instructions, OS); EmitConvertToMCInst(Target, Info.Instructions, OS);
@ -1725,7 +1733,10 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
OS << " StringRef Mnemonic = ((" << Target.getName() OS << " StringRef Mnemonic = ((" << Target.getName()
<< "Operand*)Operands[0])->getToken();\n\n"; << "Operand*)Operands[0])->getToken();\n\n";
EmitMnemonicAliases(OS); if (HasMnemonicAliases) {
OS << " // Process all MnemonicAliases to remap the mnemonic.\n";
OS << " ApplyMnemonicAliases(Mnemonic, AvailableFeatures);\n\n";
}
// Emit code to compute the class list for this operand vector. // Emit code to compute the class list for this operand vector.
OS << " // Eliminate obvious mismatches.\n"; OS << " // Eliminate obvious mismatches.\n";