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now that instruction metadata is only parsed in one place, eliminate the

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parser-global MDsOnInst vector and make ParseInstructionMetadata return
its result by-ref through an argument like the entire rest of the parser.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92302 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-12-30 05:48:36 +00:00
parent c3a6c5c83b
commit 1340dd3708
2 changed files with 12 additions and 10 deletions
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18
lib/AsmParser/LLParser.cpp
View File

@ -1065,7 +1065,9 @@ bool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) {
/// ParseInstructionMetadata
/// ::= !dbg !42 (',' !dbg !57)*
bool LLParser::ParseInstructionMetadata() {
bool LLParser::
ParseInstructionMetadata(SmallVectorImpl<std::pair<unsigned,
MDNode *> > &Result){
do {
if (Lex.getKind() != lltok::MetadataVar)
return TokError("expected metadata after comma");
@ -1079,7 +1081,7 @@ bool LLParser::ParseInstructionMetadata() {
return true;
unsigned MDK = M->getMDKindID(Name.c_str());
MDsOnInst.push_back(std::make_pair(MDK, Node));
Result.push_back(std::make_pair(MDK, Node));
// If this is the end of the list, we're done.
} while (EatIfPresent(lltok::comma));
@ -2794,6 +2796,7 @@ bool LLParser::ParseBasicBlock(PerFunctionState &PFS) {
// Parse the instructions in this block until we get a terminator.
Instruction *Inst;
SmallVector<std::pair<unsigned, MDNode *>, 4> MetadataOnInst;
do {
// This instruction may have three possibilities for a name: a) none
// specified, b) name specified "%foo =", c) number specified: "%4 =".
@ -2822,22 +2825,21 @@ bool LLParser::ParseBasicBlock(PerFunctionState &PFS) {
// With a normal result, we check to see if the instruction is followed by
// a comma and metadata.
if (EatIfPresent(lltok::comma))
if (ParseInstructionMetadata())
if (ParseInstructionMetadata(MetadataOnInst))
return true;
break;
case InstExtraComma:
// If the instruction parser ate an extra comma at the end of it, it
// *must* be followed by metadata.
if (ParseInstructionMetadata())
if (ParseInstructionMetadata(MetadataOnInst))
return true;
break;
}
// Set metadata attached with this instruction.
for (SmallVector<std::pair<unsigned, MDNode *>, 2>::iterator
MDI = MDsOnInst.begin(), MDE = MDsOnInst.end(); MDI != MDE; ++MDI)
Inst->setMetadata(MDI->first, MDI->second);
MDsOnInst.clear();
for (unsigned i = 0, e = MetadataOnInst.size(); i != e; ++i)
Inst->setMetadata(MetadataOnInst[i].first, MetadataOnInst[i].second);
MetadataOnInst.clear();
BB->getInstList().push_back(Inst);

4
lib/AsmParser/LLParser.h
View File

@ -83,7 +83,6 @@ namespace llvm {
std::vector<PATypeHolder> NumberedTypes;
std::vector<TrackingVH<MDNode> > NumberedMetadata;
std::map<unsigned, std::pair<TrackingVH<MDNode>, LocTy> > ForwardRefMDNodes;
SmallVector<std::pair<unsigned, MDNode *>, 2> MDsOnInst;
struct UpRefRecord {
/// Loc - This is the location of the upref.
LocTy Loc;
@ -171,7 +170,8 @@ namespace llvm {
bool ParseOptionalVisibility(unsigned &Visibility);
bool ParseOptionalCallingConv(CallingConv::ID &CC);
bool ParseOptionalAlignment(unsigned &Alignment);
bool ParseInstructionMetadata();
bool ParseInstructionMetadata(SmallVectorImpl<std::pair<unsigned,
MDNode *> > &);
bool ParseOptionalCommaAlign(unsigned &Alignment, bool &AteExtraComma);
bool ParseIndexList(SmallVectorImpl<unsigned> &Indices,bool &AteExtraComma);
bool ParseIndexList(SmallVectorImpl<unsigned> &Indices) {