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llvm-mc/AsmParser: Add hack to ignore Int_* and *_Int instructions for now, to

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make it easier to see interesting ambiguities.
 - Also, check that user doesn't try to redefine the super class. This is a wart
   in the current design, in that assembler match classes aren't explicitly
   declared somewhere (so there isn't a unique place to declare the super
   class). This should probably be fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78532 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-08-09 08:19:00 +00:00
parent a62b02a7ef
commit 72fa87f0cf
1 changed files with 11 additions and 0 deletions
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11
utils/TableGen/AsmMatcherEmitter.cpp
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@ -225,6 +225,12 @@ static bool IsAssemblerInstruction(const StringRef &Name,
if (Name == "PHI")
return false;
// Ignore "Int_*" and "*_Int" instructions, which are internal aliases.
//
// FIXME: This is a total hack.
if (StringRef(Name).startswith("Int_") || StringRef(Name).endswith("_Int"))
return false;
// Ignore instructions with no .s string.
//
// FIXME: What are these?
@ -571,6 +577,7 @@ AsmMatcherInfo::getOperandClass(const StringRef &Token,
Entry = new ClassInfo();
if (ClassName == "Reg") {
Entry->Kind = ClassInfo::Register;
Entry->SuperClassKind = SuperClass;
} else {
Entry->Kind = getUserClassKind(ClassName);
Entry->SuperClassKind = SuperClass;
@ -581,6 +588,10 @@ AsmMatcherInfo::getOperandClass(const StringRef &Token,
Entry->PredicateMethod = "is" + ClassName;
Entry->RenderMethod = "add" + ClassName + "Operands";
Classes.push_back(Entry);
} else {
// Verify the super class matches.
assert(SuperClass == Entry->SuperClassKind &&
"Cannot redefine super class kind!");
}
return Entry;