[llvm-commits] [llvm] r124328 - /llvm/trunk/utils/TableGen/AsmMatcherEmitter.cpp

[Bob Wilson]

Author: bwilson
Date: Wed Jan 26 15:43:46 2011
New Revision: 124328

URL: http://llvm.org/viewvc/llvm-project?rev=124328&view=rev
Log:
Add a MnemonicIsValid method to the asm matcher.
Patch by Bill Wendling.

Modified:
    llvm/trunk/utils/TableGen/AsmMatcherEmitter.cpp

Modified: llvm/trunk/utils/TableGen/AsmMatcherEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/AsmMatcherEmitter.cpp?rev=124328&r1=124327&r2=124328&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/AsmMatcherEmitter.cpp (original)
+++ llvm/trunk/utils/TableGen/AsmMatcherEmitter.cpp Wed Jan 26 15:43:46 2011
@@ -1897,6 +1897,7 @@
   OS << "    Match_Success, Match_MnemonicFail, Match_InvalidOperand,\n";
   OS << "    Match_MissingFeature\n";
   OS << "  };\n";
+  OS << "  bool MnemonicIsValid(StringRef Mnemonic);\n";
   OS << "  MatchResultTy MatchInstructionImpl(\n";
   OS << "    const SmallVectorImpl<MCParsedAsmOperand*> &Operands,\n";
   OS << "    MCInst &Inst, unsigned &ErrorInfo);\n\n";
@@ -2013,6 +2014,16 @@
 
   OS << "};\n\n";
 
+  // A method to determine if a mnemonic is in the list.
+  OS << "bool " << Target.getName() << ClassName << "::\n"
+     << "MnemonicIsValid(StringRef Mnemonic) {\n";
+  OS << "  // Search the table.\n";
+  OS << "  std::pair<const MatchEntry*, const MatchEntry*> MnemonicRange =\n";
+  OS << "    std::equal_range(MatchTable, MatchTable+"
+     << Info.Matchables.size() << ", Mnemonic, LessOpcode());\n";
+  OS << "  return MnemonicRange.first != MnemonicRange.second;\n";
+  OS << "}\n\n";
+
   // Finally, build the match function.
   OS << Target.getName() << ClassName << "::MatchResultTy "
      << Target.getName() << ClassName << "::\n"