2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
//===-- ARMMCExpr.h - ARM 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_ARM_MCTARGETDESC_ARMMCEXPR_H
|
|
#define LLVM_LIB_TARGET_ARM_MCTARGETDESC_ARMMCEXPR_H
|
|
|
|
#include "llvm/MC/MCExpr.h"
|
|
|
|
namespace llvm {
|
|
|
|
class ARMMCExpr : public MCTargetExpr {
|
|
public:
|
|
enum VariantKind {
|
|
VK_ARM_None,
|
|
VK_ARM_HI16, // The R_ARM_MOVT_ABS relocation (:upper16: in the .s file)
|
|
VK_ARM_LO16 // The R_ARM_MOVW_ABS_NC relocation (:lower16: in the .s file)
|
|
};
|
|
|
|
private:
|
|
const VariantKind Kind;
|
|
const MCExpr *Expr;
|
|
|
|
explicit ARMMCExpr(VariantKind Kind, const MCExpr *Expr)
|
|
: Kind(Kind), Expr(Expr) {}
|
|
|
|
public:
|
|
/// @name Construction
|
|
/// @{
|
|
|
|
static const ARMMCExpr *create(VariantKind Kind, const MCExpr *Expr,
|
|
MCContext &Ctx);
|
|
|
|
static const ARMMCExpr *createUpper16(const MCExpr *Expr, MCContext &Ctx) {
|
|
return create(VK_ARM_HI16, Expr, Ctx);
|
|
}
|
|
|
|
static const ARMMCExpr *createLower16(const MCExpr *Expr, MCContext &Ctx) {
|
|
return create(VK_ARM_LO16, Expr, Ctx);
|
|
}
|
|
|
|
/// @}
|
|
/// @name Accessors
|
|
/// @{
|
|
|
|
/// getOpcode - Get the kind of this expression.
|
|
VariantKind getKind() const { return Kind; }
|
|
|
|
/// getSubExpr - Get the child of this expression.
|
|
const MCExpr *getSubExpr() const { return Expr; }
|
|
|
|
/// @}
|
|
|
|
void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
|
|
bool evaluateAsRelocatableImpl(MCValue &Res,
|
|
const MCAsmLayout *Layout,
|
|
const MCFixup *Fixup) const override {
|
|
return false;
|
|
}
|
|
void visitUsedExpr(MCStreamer &Streamer) const override;
|
|
MCFragment *findAssociatedFragment() const override {
|
|
return getSubExpr()->findAssociatedFragment();
|
|
}
|
|
|
|
// There are no TLS ARMMCExprs at the moment.
|
|
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
|
|
|
|
static bool classof(const MCExpr *E) {
|
|
return E->getKind() == MCExpr::Target;
|
|
}
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif
|