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tblgen/AsmMatcherEmitter: Fix alias handling to honor -match-prefix.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124154 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2011-01-24 23:26:31 +00:00
parent 5899a60d2f
commit c0a7007d3a
1 changed files with 11 additions and 0 deletions
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11
utils/TableGen/AsmMatcherEmitter.cpp
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@ -1090,6 +1090,13 @@ void AsmMatcherInfo::BuildInfo() {
for (unsigned i = 0, e = AllInstAliases.size(); i != e; ++i) {
CodeGenInstAlias *Alias = new CodeGenInstAlias(AllInstAliases[i], Target);
// If the tblgen -match-prefix option is specified (for tblgen hackers),
// filter the set of instruction aliases we consider, based on the target
// instruction.
if (!StringRef(Alias->ResultInst->TheDef->getName()).startswith(
MatchPrefix))
continue;
OwningPtr<MatchableInfo> II(new MatchableInfo(Alias));
II->Initialize(*this, SingletonRegisters);
@ -1708,6 +1715,10 @@ static std::string GetAliasRequiredFeatures(Record *R,
/// EmitMnemonicAliases - If the target has any MnemonicAlias<> definitions,
/// emit a function for them and return true, otherwise return false.
static bool EmitMnemonicAliases(raw_ostream &OS, const AsmMatcherInfo &Info) {
// Ignore aliases when match-prefix is set.
if (!MatchPrefix.empty())
return false;
std::vector<Record*> Aliases =
Info.getRecords().getAllDerivedDefinitions("MnemonicAlias");
if (Aliases.empty()) return false;