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Make MDNode use CallbackVH. Also change MDNode to store Value* instead of

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Constant* in preperation of a future change to support holding non-Constants
in an MDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71407 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2009-05-10 20:57:05 +00:00
parent af3fdb5dc4
commit cb33799b9f
12 changed files with 270 additions and 105 deletions
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26
lib/AsmParser/LLParser.cpp
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@ -18,6 +18,7 @@
#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/MDNode.h"
#include "llvm/Module.h"
#include "llvm/ValueSymbolTable.h"
#include "llvm/ADT/SmallPtrSet.h"
@ -1571,13 +1572,11 @@ bool LLParser::ParseValID(ValID &ID) {
ID.Kind = ValID::t_Constant;
Lex.Lex();
if (Lex.getKind() == lltok::lbrace) {
// MDNode:
// ::= '!' '{' TypeAndValue (',' TypeAndValue)* '}'
SmallVector<Constant*, 16> Elts;
SmallVector<Value*, 16> Elts;
if (ParseMDNodeVector(Elts) ||
ParseToken(lltok::rbrace, "expected end of metadata node"))
return true;
ID.ConstantVal = MDNode::get(&Elts[0], Elts.size());
return false;
}
@ -3257,14 +3256,23 @@ bool LLParser::ParseInsertValue(Instruction *&Inst, PerFunctionState &PFS) {
//===----------------------------------------------------------------------===//
/// ParseMDNodeVector
/// ::= TypeAndValue (',' TypeAndValue)*
bool LLParser::ParseMDNodeVector(SmallVectorImpl<Constant*> &Elts) {
/// ::= Element (',' Element)*
/// Element
/// ::= 'null' | TypeAndValue
bool LLParser::ParseMDNodeVector(SmallVectorImpl<Value*> &Elts) {
assert(Lex.getKind() == lltok::lbrace);
Lex.Lex();
do {
Constant *C;
if (ParseGlobalTypeAndValue(C)) return true;
Elts.push_back(C);
Value *V;
if (Lex.getKind() == lltok::kw_null) {
Lex.Lex();
V = 0;
} else {
Constant *C;
if (ParseGlobalTypeAndValue(C)) return true;
V = C;
}
Elts.push_back(V);
} while (EatIfPresent(lltok::comma));
return false;