diff options
Diffstat (limited to 'contrib/llvm/lib/IR/Value.cpp')
-rw-r--r-- | contrib/llvm/lib/IR/Value.cpp | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/contrib/llvm/lib/IR/Value.cpp b/contrib/llvm/lib/IR/Value.cpp index fd0ed31..dcf0ad5 100644 --- a/contrib/llvm/lib/IR/Value.cpp +++ b/contrib/llvm/lib/IR/Value.cpp @@ -46,8 +46,9 @@ static inline Type *checkType(Type *Ty) { } Value::Value(Type *ty, unsigned scid) - : VTy(checkType(ty)), UseList(nullptr), SubclassID(scid), HasValueHandle(0), - SubclassOptionalData(0), SubclassData(0), NumOperands(0) { + : VTy(checkType(ty)), UseList(nullptr), SubclassID(scid), + HasValueHandle(0), SubclassOptionalData(0), SubclassData(0), + NumOperands(0), IsUsedByMD(false), HasName(false) { // FIXME: Why isn't this in the subclass gunk?? // Note, we cannot call isa<CallInst> before the CallInst has been // constructed. @@ -157,11 +158,39 @@ static bool getSymTab(Value *V, ValueSymbolTable *&ST) { return false; } +ValueName *Value::getValueName() const { + if (!HasName) return nullptr; + + LLVMContext &Ctx = getContext(); + auto I = Ctx.pImpl->ValueNames.find(this); + assert(I != Ctx.pImpl->ValueNames.end() && + "No name entry found!"); + + return I->second; +} + +void Value::setValueName(ValueName *VN) { + LLVMContext &Ctx = getContext(); + + assert(HasName == Ctx.pImpl->ValueNames.count(this) && + "HasName bit out of sync!"); + + if (!VN) { + if (HasName) + Ctx.pImpl->ValueNames.erase(this); + HasName = false; + return; + } + + HasName = true; + Ctx.pImpl->ValueNames[this] = VN; +} + StringRef Value::getName() const { // Make sure the empty string is still a C string. For historical reasons, // some clients want to call .data() on the result and expect it to be null // terminated. - if (!getValueName()) + if (!hasName()) return StringRef("", 0); return getValueName()->getKey(); } |