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-rw-r--r--contrib/llvm/lib/AsmParser/LLParser.h14
1 files changed, 10 insertions, 4 deletions
diff --git a/contrib/llvm/lib/AsmParser/LLParser.h b/contrib/llvm/lib/AsmParser/LLParser.h
index f765a2a..404cec3 100644
--- a/contrib/llvm/lib/AsmParser/LLParser.h
+++ b/contrib/llvm/lib/AsmParser/LLParser.h
@@ -32,7 +32,6 @@ namespace llvm {
class GlobalValue;
class MDString;
class MDNode;
- class UnionType;
/// ValID - Represents a reference of a definition of some sort with no type.
/// There are several cases where we have to parse the value but where the
@@ -80,6 +79,14 @@ namespace llvm {
// Instruction metadata resolution. Each instruction can have a list of
// MDRef info associated with them.
+ //
+ // The simpler approach of just creating temporary MDNodes and then calling
+ // RAUW on them when the definition is processed doesn't work because some
+ // instruction metadata kinds, such as dbg, get stored in the IR in an
+ // "optimized" format which doesn't participate in the normal value use
+ // lists. This means that RAUW doesn't work, even on temporary MDNodes
+ // which otherwise support RAUW. Instead, we defer resolving MDNode
+ // references until the definitions have been processed.
struct MDRef {
SMLoc Loc;
unsigned MDKind, MDSlot;
@@ -180,7 +187,6 @@ namespace llvm {
bool ParseOptionalCallingConv(CallingConv::ID &CC);
bool ParseOptionalAlignment(unsigned &Alignment);
bool ParseOptionalStackAlignment(unsigned &Alignment);
- bool ParseInstructionMetadata(Instruction *Inst);
bool ParseOptionalCommaAlign(unsigned &Alignment, bool &AteExtraComma);
bool ParseIndexList(SmallVectorImpl<unsigned> &Indices,bool &AteExtraComma);
bool ParseIndexList(SmallVectorImpl<unsigned> &Indices) {
@@ -222,7 +228,6 @@ namespace llvm {
}
bool ParseTypeRec(PATypeHolder &H);
bool ParseStructType(PATypeHolder &H, bool Packed);
- bool ParseUnionType(PATypeHolder &H);
bool ParseArrayVectorType(PATypeHolder &H, bool isVector);
bool ParseFunctionType(PATypeHolder &Result);
PATypeHolder HandleUpRefs(const Type *Ty);
@@ -291,7 +296,6 @@ namespace llvm {
return ParseTypeAndBasicBlock(BB, Loc, PFS);
}
- bool ParseUnionValue(const UnionType* utype, ValID &ID, Value *&V);
struct ParamInfo {
LocTy Loc;
@@ -308,8 +312,10 @@ namespace llvm {
bool ParseGlobalValue(const Type *Ty, Constant *&V);
bool ParseGlobalTypeAndValue(Constant *&V);
bool ParseGlobalValueVector(SmallVectorImpl<Constant*> &Elts);
+ bool ParseMetadataListValue(ValID &ID, PerFunctionState *PFS);
bool ParseMetadataValue(ValID &ID, PerFunctionState *PFS);
bool ParseMDNodeVector(SmallVectorImpl<Value*> &, PerFunctionState *PFS);
+ bool ParseInstructionMetadata(Instruction *Inst, PerFunctionState *PFS);
// Function Parsing.
struct ArgInfo {
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