Implement Function::getIntrinsicID without it needing to call Value::getName,
which allocates a string. This speeds up instcombine on 447.dealII by 5%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34318 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/IntrinsicEmitter.cpp b/utils/TableGen/IntrinsicEmitter.cpp
index faa750d..c44ae5e 100644
--- a/utils/TableGen/IntrinsicEmitter.cpp
+++ b/utils/TableGen/IntrinsicEmitter.cpp
@@ -81,17 +81,19 @@
OS << "// Function name -> enum value recognizer code.\n";
OS << "#ifdef GET_FUNCTION_RECOGNIZER\n";
OS << " switch (Name[5]) {\n";
- OS << " default: break;\n";
+ OS << " default:\n";
// Emit the intrinsics in sorted order.
char LastChar = 0;
for (std::map<std::string, std::string>::iterator I = IntMapping.begin(),
E = IntMapping.end(); I != E; ++I) {
if (I->first[5] != LastChar) {
LastChar = I->first[5];
+ OS << " break;\n";
OS << " case '" << LastChar << "':\n";
}
- OS << " if (Name == \"" << I->first << "\") return Intrinsic::"
+ OS << " if (Len == " << I->first.size()
+ << " && !strcmp(Name, \"" << I->first << "\")) return Intrinsic::"
<< I->second << ";\n";
}
OS << " }\n";