================
@@ -529,9 +529,324 @@ bool SystemZTargetCodeGenInfo::isVectorTypeBased(const
Type *Ty,
return false;
}
+//===----------------------------------------------------------------------===//
+// z/OS XPLINK ABI Implementation
+//===----------------------------------------------------------------------===//
+
+namespace {
+
+class ZOSXPLinkABIInfo : public ABIInfo {
+ static const unsigned GPRBits = 64;
+ bool HasVector;
+
+public:
+ ZOSXPLinkABIInfo(CodeGenTypes &CGT, bool HV) : ABIInfo(CGT), HasVector(HV) {}
+
+ bool isPromotableIntegerType(QualType Ty) const;
+ bool isCompoundType(QualType Ty) const;
+ bool isVectorArgumentType(QualType Ty) const;
+ bool isFPArgumentType(QualType Ty) const;
+ QualType GetSingleElementType(QualType Ty) const;
+ bool IsLikeComplexType(QualType Ty) const;
+
+ ABIArgInfo classifyReturnType(QualType RetTy) const;
+ ABIArgInfo classifyArgumentType(QualType ArgTy, bool IsNamedArg) const;
+
+ void computeInfo(CGFunctionInfo &FI) const override {
+ if (!getCXXABI().classifyReturnType(FI))
+ FI.getReturnInfo() = classifyReturnType(FI.getReturnType());
+
+ unsigned NumRequiredArgs = FI.getNumRequiredArgs();
+ unsigned ArgNo = 0;
+
+ for (auto &I : FI.arguments()) {
+ bool IsNamedArg = ArgNo < NumRequiredArgs;
+ I.info = classifyArgumentType(I.type, IsNamedArg);
+ ++ArgNo;
+ }
+ }
+
+ Address EmitVAArg(CodeGenFunction &CGF, Address VAListAddr,
+ QualType Ty) const override;
+};
+
+class ZOSXPLinkTargetCodeGenInfo : public TargetCodeGenInfo {
+public:
+ ZOSXPLinkTargetCodeGenInfo(CodeGenTypes &CGT, bool HasVector)
+ : TargetCodeGenInfo(std::make_unique<ZOSXPLinkABIInfo>(CGT, HasVector)) {
+ SwiftInfo =
+ std::make_unique<SwiftABIInfo>(CGT, /*SwiftErrorInRegister=*/false);
+ }
+};
+
+} // namespace
+
+// Return true if the ABI requires Ty to be passed sign- or zero-
+// extended to 64 bits.
+bool ZOSXPLinkABIInfo::isPromotableIntegerType(QualType Ty) const {
+ // Treat an enum type as its underlying type.
+ if (const EnumType *EnumTy = Ty->getAs<EnumType>())
+ Ty = EnumTy->getDecl()->getIntegerType();
+
+ // Promotable integer types are required to be promoted by the ABI.
+ if (getContext().isPromotableIntegerType(Ty))
+ return true;
----------------
fanbo-meng wrote:
added it
https://github.com/llvm/llvm-project/pull/91384
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