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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
102 lines
2.8 KiB
C++
102 lines
2.8 KiB
C++
//===-- PPCMCExpr.h - PPC specific MC expression classes --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_POWERPC_MCTARGETDESC_PPCMCEXPR_H
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#define LLVM_LIB_TARGET_POWERPC_MCTARGETDESC_PPCMCEXPR_H
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#include "llvm/MC/MCAsmLayout.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCValue.h"
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namespace llvm {
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class PPCMCExpr : public MCTargetExpr {
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public:
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enum VariantKind {
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VK_PPC_None,
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VK_PPC_LO,
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VK_PPC_HI,
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VK_PPC_HA,
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VK_PPC_HIGH,
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VK_PPC_HIGHA,
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VK_PPC_HIGHER,
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VK_PPC_HIGHERA,
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VK_PPC_HIGHEST,
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VK_PPC_HIGHESTA
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};
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private:
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const VariantKind Kind;
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const MCExpr *Expr;
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bool IsDarwin;
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int64_t evaluateAsInt64(int64_t Value) const;
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explicit PPCMCExpr(VariantKind Kind, const MCExpr *Expr, bool IsDarwin)
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: Kind(Kind), Expr(Expr), IsDarwin(IsDarwin) {}
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public:
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/// @name Construction
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/// @{
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static const PPCMCExpr *create(VariantKind Kind, const MCExpr *Expr,
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bool isDarwin, MCContext &Ctx);
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static const PPCMCExpr *createLo(const MCExpr *Expr,
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bool isDarwin, MCContext &Ctx) {
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return create(VK_PPC_LO, Expr, isDarwin, Ctx);
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}
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static const PPCMCExpr *createHi(const MCExpr *Expr,
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bool isDarwin, MCContext &Ctx) {
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return create(VK_PPC_HI, Expr, isDarwin, Ctx);
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}
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static const PPCMCExpr *createHa(const MCExpr *Expr,
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bool isDarwin, MCContext &Ctx) {
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return create(VK_PPC_HA, Expr, isDarwin, Ctx);
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}
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/// @}
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/// @name Accessors
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/// @{
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/// getOpcode - Get the kind of this expression.
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VariantKind getKind() const { return Kind; }
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/// getSubExpr - Get the child of this expression.
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const MCExpr *getSubExpr() const { return Expr; }
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/// isDarwinSyntax - True if expression is to be printed using Darwin syntax.
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bool isDarwinSyntax() const { return IsDarwin; }
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/// @}
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void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
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bool evaluateAsRelocatableImpl(MCValue &Res,
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const MCAsmLayout *Layout,
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const MCFixup *Fixup) const override;
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void visitUsedExpr(MCStreamer &Streamer) const override;
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MCFragment *findAssociatedFragment() const override {
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return getSubExpr()->findAssociatedFragment();
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}
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// There are no TLS PPCMCExprs at the moment.
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void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
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bool evaluateAsConstant(int64_t &Res) const;
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static bool classof(const MCExpr *E) {
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return E->getKind() == MCExpr::Target;
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}
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};
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} // end namespace llvm
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#endif
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