Pick low-hanging MatchEntry shrinkage fruit.
Shaves 200k off Release-Asserts clang binaries on i386.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142191 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/AsmMatcherEmitter.cpp b/utils/TableGen/AsmMatcherEmitter.cpp
index 8b86c23..ba69aef 100644
--- a/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/utils/TableGen/AsmMatcherEmitter.cpp
@@ -1975,6 +1975,15 @@
return true;
}
+static const char *getMinimalTypeForRange(uint64_t Range) {
+ assert(Range < 0xFFFFFFFFULL && "Enum too large");
+ if (Range > 0xFFFF)
+ return "uint32_t";
+ if (Range > 0xFF)
+ return "uint16_t";
+ return "uint8_t";
+}
+
static void EmitCustomOperandParsing(raw_ostream &OS, CodeGenTarget &Target,
const AsmMatcherInfo &Info, StringRef ClassName) {
// Emit the static custom operand parsing table;
@@ -2262,9 +2271,12 @@
OS << " struct MatchEntry {\n";
OS << " unsigned Opcode;\n";
OS << " const char *Mnemonic;\n";
- OS << " ConversionKind ConvertFn;\n";
- OS << " MatchClassKind Classes[" << MaxNumOperands << "];\n";
- OS << " unsigned RequiredFeatures;\n";
+ OS << " " << getMinimalTypeForRange(Info.Matchables.size())
+ << " ConvertFn;\n";
+ OS << " " << getMinimalTypeForRange(Info.Classes.size())
+ << " Classes[" << MaxNumOperands << "];\n";
+ OS << " " << getMinimalTypeForRange(1ULL << Info.SubtargetFeatures.size())
+ << " RequiredFeatures;\n";
OS << " };\n\n";
OS << " // Predicate for searching for an opcode.\n";
@@ -2384,7 +2396,8 @@
OS << " OperandsValid = (it->Classes[i] == " <<"InvalidMatchClass);\n";
OS << " break;\n";
OS << " }\n";
- OS << " if (ValidateOperandClass(Operands[i+1], it->Classes[i]))\n";
+ OS << " if (ValidateOperandClass(Operands[i+1], "
+ "(MatchClassKind)it->Classes[i]))\n";
OS << " continue;\n";
OS << " // If this operand is broken for all of the instances of this\n";
OS << " // mnemonic, keep track of it so we can report loc info.\n";
