mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
//===-- RISCVMCExpr.h - RISCV specific MC expression classes ----*- C++ -*-===//
|
|
//
|
|
// 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 describes RISCV-specific MCExprs, used for modifiers like
|
|
// "%hi" or "%lo" etc.,
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_RISCV_MCTARGETDESC_RISCVMCEXPR_H
|
|
#define LLVM_LIB_TARGET_RISCV_MCTARGETDESC_RISCVMCEXPR_H
|
|
|
|
#include "llvm/MC/MCExpr.h"
|
|
|
|
namespace llvm {
|
|
|
|
class StringRef;
|
|
|
|
class RISCVMCExpr : public MCTargetExpr {
|
|
public:
|
|
enum VariantKind {
|
|
VK_RISCV_None,
|
|
VK_RISCV_LO,
|
|
VK_RISCV_HI,
|
|
VK_RISCV_PCREL_LO,
|
|
VK_RISCV_PCREL_HI,
|
|
VK_RISCV_GOT_HI,
|
|
VK_RISCV_TPREL_LO,
|
|
VK_RISCV_TPREL_HI,
|
|
VK_RISCV_TPREL_ADD,
|
|
VK_RISCV_TLS_GOT_HI,
|
|
VK_RISCV_TLS_GD_HI,
|
|
VK_RISCV_CALL,
|
|
VK_RISCV_CALL_PLT,
|
|
VK_RISCV_32_PCREL,
|
|
VK_RISCV_Invalid // Must be the last item
|
|
};
|
|
|
|
private:
|
|
const MCExpr *Expr;
|
|
const VariantKind Kind;
|
|
|
|
int64_t evaluateAsInt64(int64_t Value) const;
|
|
|
|
explicit RISCVMCExpr(const MCExpr *Expr, VariantKind Kind)
|
|
: Expr(Expr), Kind(Kind) {}
|
|
|
|
public:
|
|
static const RISCVMCExpr *create(const MCExpr *Expr, VariantKind Kind,
|
|
MCContext &Ctx);
|
|
|
|
VariantKind getKind() const { return Kind; }
|
|
|
|
const MCExpr *getSubExpr() const { return Expr; }
|
|
|
|
/// Get the corresponding PC-relative HI fixup that a VK_RISCV_PCREL_LO
|
|
/// points to, and optionally the fragment containing it.
|
|
///
|
|
/// \returns nullptr if this isn't a VK_RISCV_PCREL_LO pointing to a
|
|
/// known PC-relative HI fixup.
|
|
const MCFixup *getPCRelHiFixup(const MCFragment **DFOut) const;
|
|
|
|
void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
|
|
bool evaluateAsRelocatableImpl(MCValue &Res, const MCAsmLayout *Layout,
|
|
const MCFixup *Fixup) const override;
|
|
void visitUsedExpr(MCStreamer &Streamer) const override;
|
|
MCFragment *findAssociatedFragment() const override {
|
|
return getSubExpr()->findAssociatedFragment();
|
|
}
|
|
|
|
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
|
|
|
|
bool evaluateAsConstant(int64_t &Res) const;
|
|
|
|
static bool classof(const MCExpr *E) {
|
|
return E->getKind() == MCExpr::Target;
|
|
}
|
|
|
|
static bool classof(const RISCVMCExpr *) { return true; }
|
|
|
|
static VariantKind getVariantKindForName(StringRef name);
|
|
static StringRef getVariantKindName(VariantKind Kind);
|
|
};
|
|
|
|
} // end namespace llvm.
|
|
|
|
#endif
|