================
@@ -938,6 +938,37 @@ struct Amdgpu final : public VariadicABIInfo {
}
};
+struct NVPTX final : public VariadicABIInfo {
+
+ bool enableForTarget() override { return true; }
+
+ bool vaListPassedInSSARegister() override { return true; }
+
+ Type *vaListType(LLVMContext &Ctx) override {
+ return PointerType::getUnqual(Ctx);
+ }
+
+ Type *vaListParameterType(Module &M) override {
+ return PointerType::getUnqual(M.getContext());
+ }
+
+ Value *initializeVaList(Module &M, LLVMContext &Ctx, IRBuilder<> &Builder,
+ AllocaInst *, Value *Buffer) override {
+ return Builder.CreateAddrSpaceCast(Buffer, vaListParameterType(M));
+ }
+
+ VAArgSlotInfo slotInfo(const DataLayout &DL, Type *Parameter) override {
+ // NVPTX doesn't apply minimum alignment to types present in structs. Types
+ // with alignment less than four should be promoted by the compiler and
will
+ // get the proper minimum alignment in those cases.
+ const unsigned MinAlign = 1;
----------------
JonChesterfield wrote:
I don't think this does what the comment says it should. Also some half types
might be passed with 2 byte alignment, others might be passed promoted to
double.
https://github.com/llvm/llvm-project/pull/96015
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