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

[Craig Topper via llvm-commits]

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@@ -0,0 +1,93 @@
+//===------- 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(LLVMContext &C,
+                                               RISCVCP::RISCVCPKind Kind)
+    : MachineConstantPoolValue((Type *)Type::getInt64Ty(C)), Kind(Kind) {}
+
+RISCVConstantPoolValue::RISCVConstantPoolValue(Type *Ty,
+                                               RISCVCP::RISCVCPKind Kind)
+    : MachineConstantPoolValue(Ty), Kind(Kind) {}
+
+int RISCVConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
+                                                      Align Alignment) {
+  llvm_unreachable("Shouldn't be calling this directly!");
+}
+
+RISCVConstantPoolConstant::RISCVConstantPoolConstant(Type *Ty,
+                                                     const Constant *GV,
+                                                     RISCVCP::RISCVCPKind Kind)
+    : RISCVConstantPoolValue(Ty, Kind), CVal(GV) {}
+
+RISCVConstantPoolConstant *
+RISCVConstantPoolConstant::Create(const GlobalValue *GV,
+                                  RISCVCP::RISCVCPKind Kind) {
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topperc wrote:

Why does the caller need to pass the RISCVCPKind? Don't we know the Kind based on which Create function was used?

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