================
@@ -528,6 +564,256 @@ CallInst *IRTCallDescription::createLLVMCall(Value *&V,
return CI;
}
+template <typename Ty> constexpr static Value *getValue(Ty &ValueOrUse) {
+ if constexpr (std::is_same<Ty, Use>::value)
+ return ValueOrUse.get();
+ else
+ return static_cast<Value *>(&ValueOrUse);
+}
+
+template <typename Range>
+static Value *createValuePack(const Range &R, InstrumentationConfig &IConf,
+ InstrumentorIRBuilderTy &IIRB) {
+ auto *Fn = IIRB.IRB.GetInsertBlock()->getParent();
+ auto *I32Ty = IIRB.IRB.getInt32Ty();
+ SmallVector<Constant *> ConstantValues;
+ SmallVector<std::pair<Value *, uint32_t>> Values;
+ SmallVector<Type *> Types;
+ for (auto &RE : R) {
+ Value *V = getValue(RE);
+ if (!V->getType()->isSized())
+ continue;
+ auto VSize = IIRB.DL.getTypeAllocSize(V->getType());
+ ConstantValues.push_back(getCI(I32Ty, VSize));
+ Types.push_back(I32Ty);
+ ConstantValues.push_back(getCI(I32Ty, V->getType()->getTypeID()));
+ Types.push_back(I32Ty);
+ if (uint32_t MisAlign = VSize % 8) {
+ Types.push_back(ArrayType::get(IIRB.Int8Ty, 8 - MisAlign));
+ ConstantValues.push_back(ConstantArray::getNullValue(Types.back()));
+ }
+ Types.push_back(V->getType());
+ if (auto *C = dyn_cast<Constant>(V)) {
+ ConstantValues.push_back(C);
+ continue;
+ }
+ Values.push_back({V, ConstantValues.size()});
+ ConstantValues.push_back(Constant::getNullValue(V->getType()));
+ }
+ if (Types.empty())
+ return ConstantPointerNull::get(PointerType::getUnqual(IIRB.Ctx));
+
+ StructType *STy = StructType::get(Fn->getContext(), Types,
/*isPacked=*/true);
+ Constant *Initializer = ConstantStruct::get(STy, ConstantValues);
+
+ GlobalVariable *&GV = IConf.ConstantGlobalsCache[Initializer];
+ if (!GV)
+ GV = new GlobalVariable(*Fn->getParent(), STy, false,
+ GlobalValue::InternalLinkage, Initializer,
+ IConf.getRTName("", "value_pack"));
+
+ auto *AI = IIRB.getAlloca(Fn, STy);
+ IIRB.IRB.CreateMemCpy(AI, AI->getAlign(), GV, MaybeAlign(GV->getAlignment()),
----------------
arsenm wrote:
```suggestion
IIRB.IRB.CreateMemCpy(AI, AI->getAlign(), GV, GV->getAlign(),
```
https://github.com/llvm/llvm-project/pull/195378
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