maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
llvm/utils/TableGen/AsmMatcherEmitter.cpp
View File

@ -1515,23 +1515,28 @@ static void EmitComputeAvailableFeatures(CodeGenTarget &Target,
}
/// EmitMnemonicAliases - If the target has any MnemonicAlias<> definitions,
/// emit them.
static void EmitMnemonicAliases(raw_ostream &OS) {
/// emit a function for them and return true, otherwise return false.
static bool EmitMnemonicAliases(raw_ostream &OS) {
OS << "static void ApplyMnemonicAliases(StringRef &Mnemonic, "
"unsigned Features) {\n";
std::vector<Record*> Aliases =
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;
for (unsigned i = 0, e = Aliases.size(); i != e; ++i) {
Record *R = Aliases[i];
Cases.push_back(std::make_pair(R->getValueAsString("FromMnemonic"),
"Mnemonic = \"" +
R->getValueAsString("ToMnemonic") +
"\"; break;"));
"\"; return;"));
}
StringMatcher("Mnemonic", Cases, OS).Emit();
OS << "}\n";
return true;
}
void AsmMatcherEmitter::run(raw_ostream &OS) {
@ -1617,6 +1622,9 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
OS << "\n#ifdef GET_MATCHER_IMPLEMENTATION\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.
EmitConvertToMCInst(Target, Info.Instructions, OS);
@ -1725,7 +1733,10 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
OS << " StringRef Mnemonic = ((" << Target.getName()
<< "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.
OS << " // Eliminate obvious mismatches.\n";