[llvm] [RISCV] Support the large code model. (PR #70308)

[Craig Topper via llvm-commits]

================
@@ -0,0 +1,81 @@
+//===------- RISCVConstantPoolValue.cpp - RISC-V constantpool value -------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the RISC-V specific constantpool value class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "RISCVConstantPoolValue.h"
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/IR/Type.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+RISCVConstantPoolValue::RISCVConstantPoolValue(Type *Ty, const GlobalValue *GV)
+    : MachineConstantPoolValue(Ty), GV(GV), Kind(RISCVCPKind::GlobalValue) {}
+
+RISCVConstantPoolValue::RISCVConstantPoolValue(LLVMContext &C, StringRef S)
+    : MachineConstantPoolValue((Type *)Type::getInt64Ty(C)), S(S),
----------------
topperc wrote:

Why do we need an explicit cast to `Type *` here? Is it ambiguous?

https://github.com/llvm/llvm-project/pull/70308