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Extend function-local metadata to be usable as attachments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111895 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-08-24 02:24:03 +00:00
parent 78aeae2d7b
commit 309b3af547
5 changed files with 128 additions and 45 deletions
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lib/AsmParser/LLParser.cpp
+35 -19
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@@ -1124,23 +1124,33 @@ bool LLParser::ParseInstructionMetadata(Instruction *Inst,
return TokError("expected metadata after comma");
std::string Name = Lex.getStrVal();
unsigned MDK = M->getMDKindID(Name.c_str());
Lex.Lex();
MDNode *Node;
unsigned NodeID;
SMLoc Loc = Lex.getLoc();
if (ParseToken(lltok::exclaim, "expected '!' here") ||
ParseMDNodeID(Node, NodeID))
if (ParseToken(lltok::exclaim, "expected '!' here"))
return true;
unsigned MDK = M->getMDKindID(Name.c_str());
if (Node) {
// If we got the node, add it to the instruction.
Inst->setMetadata(MDK, Node);
if (Lex.getKind() == lltok::lbrace) {
ValID ID;
if (ParseMetadataListValue(ID, PFS))
return true;
assert(ID.Kind == ValID::t_MDNode);
Inst->setMetadata(MDK, ID.MDNodeVal);
} else {
MDRef R = { Loc, MDK, NodeID };
// Otherwise, remember that this should be resolved later.
ForwardRefInstMetadata[Inst].push_back(R);
if (ParseMDNodeID(Node, NodeID))
return true;
if (Node) {
// If we got the node, add it to the instruction.
Inst->setMetadata(MDK, Node);
} else {
MDRef R = { Loc, MDK, NodeID };
// Otherwise, remember that this should be resolved later.
ForwardRefInstMetadata[Inst].push_back(R);
}
}
// If this is the end of the list, we're done.
@@ -2505,6 +2515,20 @@ bool LLParser::ParseGlobalValueVector(SmallVectorImpl<Constant*> &Elts) {
return false;
}
bool LLParser::ParseMetadataListValue(ValID &ID, PerFunctionState *PFS) {
assert(Lex.getKind() == lltok::lbrace);
Lex.Lex();
SmallVector<Value*, 16> Elts;
if (ParseMDNodeVector(Elts, PFS) ||
ParseToken(lltok::rbrace, "expected end of metadata node"))
return true;
ID.MDNodeVal = MDNode::get(Context, Elts.data(), Elts.size());
ID.Kind = ValID::t_MDNode;
return false;
}
/// ParseMetadataValue
/// ::= !42
/// ::= !{...}
@@ -2515,16 +2539,8 @@ bool LLParser::ParseMetadataValue(ValID &ID, PerFunctionState *PFS) {
// MDNode:
// !{ ... }
if (EatIfPresent(lltok::lbrace)) {
SmallVector<Value*, 16> Elts;
if (ParseMDNodeVector(Elts, PFS) ||
ParseToken(lltok::rbrace, "expected end of metadata node"))
return true;
ID.MDNodeVal = MDNode::get(Context, Elts.data(), Elts.size());
ID.Kind = ValID::t_MDNode;
return false;
}
if (Lex.getKind() == lltok::lbrace)
return ParseMetadataListValue(ID, PFS);
// Standalone metadata reference
// !42