- if (Kind.isMergeableConst() && C) {
- const unsigned Characteristics = COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_LNK_COMDAT;
- std::string COMDATSymName;
- if (Kind.isMergeableConst4() || Kind.isMergeableConst8())
- COMDATSymName = "__real@" + scalarConstantToHexString(C);
- else if (Kind.isMergeableConst16())
- COMDATSymName = "__xmm@" + scalarConstantToHexString(C);
-
- if (!COMDATSymName.empty())
- return getContext().getCOFFSection(".rdata", Characteristics, Kind,
- COMDATSymName,
- COFF::IMAGE_COMDAT_SELECT_ANY);
+ if (Kind.isReadOnly()) {
+ if (C) {
+ Type *Ty = C->getType();
+ SmallString<32> COMDATSymName;
+ if (Ty->isFloatTy() || Ty->isDoubleTy()) {
+ COMDATSymName = "__real@";
+ COMDATSymName += scalarConstantToHexString(C);
+ } else if (const auto *VTy = dyn_cast<VectorType>(Ty)) {
+ uint64_t NumBits = VTy->getBitWidth();
+ if (NumBits == 128 || NumBits == 256) {
+ COMDATSymName = NumBits == 128 ? "__xmm@" : "__ymm@";
+ for (int I = VTy->getNumElements() - 1, E = -1; I != E; --I)
+ COMDATSymName +=
+ scalarConstantToHexString(C->getAggregateElement(I));
+ }
+ }
+ if (!COMDATSymName.empty()) {
+ unsigned Characteristics = COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_LNK_COMDAT;
+ return getContext().getCOFFSection(".rdata", Characteristics, Kind,
+ COMDATSymName,
+ COFF::IMAGE_COMDAT_SELECT_ANY);
+ }
+ }