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Only one custom meadata of each kind can be attached with an instruction.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83105 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-09-29 20:30:57 +00:00
parent a9a9c95f67
commit 58a230a491
5 changed files with 25 additions and 15 deletions
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4
include/llvm/Metadata.h
View File

@ -342,8 +342,8 @@ public:
/// getMDs - Get the metadata attached with an Instruction.
const MDMapTy *getMDs(const Instruction *Inst);
/// setMD - Attach the metadata of given kind with an Instruction.
void setMD(unsigned Kind, MDNode *Node, Instruction *Inst);
/// addMD - Attach the metadata of given kind with an Instruction.
void addMD(unsigned Kind, MDNode *Node, Instruction *Inst);
/// getHandlerNames - Get handler names. This is used by bitcode
/// writer.

4
include/llvm/Support/IRBuilder.h
View File

@ -148,7 +148,7 @@ public:
/// SetDebugLocation - Set location information for the given instruction.
void SetDebugLocation(Instruction *I) {
if (CurDbgLocation)
Context.getMetadata().setMD(MDKind, CurDbgLocation, I);
Context.getMetadata().addMD(MDKind, CurDbgLocation, I);
}
/// Insert - Insert and return the specified instruction.
@ -156,7 +156,7 @@ public:
InstTy *Insert(InstTy *I, const Twine &Name = "") const {
this->InsertHelper(I, Name, BB, InsertPt);
if (CurDbgLocation)
Context.getMetadata().setMD(MDKind, CurDbgLocation, I);
Context.getMetadata().addMD(MDKind, CurDbgLocation, I);
return I;
}

2
lib/AsmParser/LLParser.cpp
View File

@ -2665,7 +2665,7 @@ bool LLParser::ParseBasicBlock(PerFunctionState &PFS) {
MetadataContext &TheMetadata = M->getContext().getMetadata();
for (SmallVector<std::pair<unsigned, MDNode *>, 2>::iterator
MDI = MDsOnInst.begin(), MDE = MDsOnInst.end(); MDI != MDE; ++MDI)
TheMetadata.setMD(MDI->first, MDI->second, Inst);
TheMetadata.addMD(MDI->first, MDI->second, Inst);
MDsOnInst.clear();
BB->getInstList().push_back(Inst);

2
lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -1582,7 +1582,7 @@ bool BitcodeReader::ParseMetadataAttachment() {
for (unsigned i = 1; i != RecordLength; i = i+2) {
unsigned Kind = Record[i];
Value *Node = MDValueList.getValueFwdRef(Record[i+1]);
TheMetadata.setMD(Kind, cast<MDNode>(Node), Inst);
TheMetadata.addMD(Kind, cast<MDNode>(Node), Inst);
}
break;
}

28
lib/VMCore/Metadata.cpp
View File

@ -300,18 +300,29 @@ unsigned MetadataContext::getMDKind(const char *Name) {
return I->getValue();
}
/// setMD - Attach the metadata of given kind with an Instruction.
void MetadataContext::setMD(unsigned MDKind, MDNode *Node, Instruction *Inst) {
MDStoreTy::iterator I = MetadataStore.find(Inst);
/// addMD - Attach the metadata of given kind with an Instruction.
void MetadataContext::addMD(unsigned MDKind, MDNode *Node, Instruction *Inst) {
assert (Node && "Unable to add custome metadata");
Inst->HasMetadata = true;
MDStoreTy::iterator I = MetadataStore.find(Inst);
if (I == MetadataStore.end()) {
MDMapTy Info;
Info.push_back(std::make_pair(MDKind, Node));
MetadataStore.insert(std::make_pair(Inst, Info));
return;
}
MDMapTy &Info = I->second;
// If there is an entry for this MDKind then replace it.
for (unsigned i = 0, e = Info.size(); i != e; ++i) {
MDPairTy &P = Info[i];
if (P.first == MDKind) {
Info[i] = std::make_pair(MDKind, Node);
return;
}
}
// Otherwise add a new entry.
Info.push_back(std::make_pair(MDKind, Node));
return;
}
@ -319,16 +330,15 @@ void MetadataContext::setMD(unsigned MDKind, MDNode *Node, Instruction *Inst) {
/// getMD - Get the metadata of given kind attached with an Instruction.
/// If the metadata is not found then return 0.
MDNode *MetadataContext::getMD(unsigned MDKind, const Instruction *Inst) {
MDNode *Node = NULL;
MDStoreTy::iterator I = MetadataStore.find(Inst);
if (I == MetadataStore.end())
return Node;
return NULL;
MDMapTy &Info = I->second;
for (MDMapTy::iterator I = Info.begin(), E = Info.end(); I != E; ++I)
if (I->first == MDKind)
Node = dyn_cast_or_null<MDNode>(I->second);
return Node;
return dyn_cast_or_null<MDNode>(I->second);
return NULL;
}
/// getMDs - Get the metadata attached with an Instruction.
@ -374,5 +384,5 @@ void MetadataContext::ValueIsCloned(const Instruction *In1, Instruction *In2) {
MDMapTy In2Info;
for (MDMapTy::iterator I = In1Info.begin(), E = In1Info.end(); I != E; ++I)
if (MDNode *MD = dyn_cast_or_null<MDNode>(I->second))
setMD(I->first, MD, In2);
addMD(I->first, MD, In2);
}