LLVM  12.0.0git
VEMCExpr.h
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1 //====- VEMCExpr.h - VE specific MC expression classes --------*- C++ -*-=====//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file describes VE-specific MCExprs, used for modifiers like
10 // "%hi" or "%lo" etc.,
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_VE_MCTARGETDESC_VEMCEXPR_H
15 #define LLVM_LIB_TARGET_VE_MCTARGETDESC_VEMCEXPR_H
16 
17 #include "VEFixupKinds.h"
18 #include "llvm/MC/MCExpr.h"
19 
20 namespace llvm {
21 
22 class StringRef;
23 class VEMCExpr : public MCTargetExpr {
24 public:
25  enum VariantKind {
42  };
43 
44 private:
45  const VariantKind Kind;
46  const MCExpr *Expr;
47 
48  explicit VEMCExpr(VariantKind Kind, const MCExpr *Expr)
49  : Kind(Kind), Expr(Expr) {}
50 
51 public:
52  /// @name Construction
53  /// @{
54 
55  static const VEMCExpr *create(VariantKind Kind, const MCExpr *Expr,
56  MCContext &Ctx);
57  /// @}
58  /// @name Accessors
59  /// @{
60 
61  /// getOpcode - Get the kind of this expression.
62  VariantKind getKind() const { return Kind; }
63 
64  /// getSubExpr - Get the child of this expression.
65  const MCExpr *getSubExpr() const { return Expr; }
66 
67  /// getFixupKind - Get the fixup kind of this expression.
68  VE::Fixups getFixupKind() const { return getFixupKind(Kind); }
69 
70  /// @}
71  void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
72  bool evaluateAsRelocatableImpl(MCValue &Res, const MCAsmLayout *Layout,
73  const MCFixup *Fixup) const override;
74  void visitUsedExpr(MCStreamer &Streamer) const override;
75  MCFragment *findAssociatedFragment() const override {
77  }
78 
79  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
80 
81  static bool classof(const MCExpr *E) {
82  return E->getKind() == MCExpr::Target;
83  }
84 
85  static bool classof(const VEMCExpr *) { return true; }
86 
88  static bool printVariantKind(raw_ostream &OS, VariantKind Kind);
89  static void printVariantKindSuffix(raw_ostream &OS, VariantKind Kind);
90  static VE::Fixups getFixupKind(VariantKind Kind);
91 };
92 
93 } // namespace llvm
94 
95 #endif
This class represents lattice values for constants.
Definition: AllocatorList.h:23
static void printVariantKindSuffix(raw_ostream &OS, VariantKind Kind)
Definition: VEMCExpr.cpp:68
This represents an "assembler immediate".
Definition: MCValue.h:37
static const char * name
Encode information on a single operation to perform on a byte sequence (e.g., an encoded instruction)...
Definition: MCFixup.h:81
void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override
Definition: VEMCExpr.cpp:214
Target specific expression.
Definition: MCExpr.h:42
Encapsulates the layout of an assembly file at a particular point in time.
Definition: MCAsmLayout.h:28
Base class for the full range of assembler expressions which are needed for parsing.
Definition: MCExpr.h:35
This is an extension point for target-specific MCExpr subclasses to implement.
Definition: MCExpr.h:640
static bool printVariantKind(raw_ostream &OS, VariantKind Kind)
Definition: VEMCExpr.cpp:42
MCExpr(ExprKind Kind, SMLoc Loc, unsigned SubclassData=0)
Definition: MCExpr.h:61
static VariantKind parseVariantKind(StringRef name)
Definition: VEMCExpr.cpp:118
static bool classof(const MCExpr *E)
Definition: VEMCExpr.h:81
This class is intended to be used as a base class for asm properties and features specific to the tar...
Definition: MCAsmInfo.h:56
Streaming machine code generation interface.
Definition: MCStreamer.h:198
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
const MCExpr * getSubExpr() const
getSubExpr - Get the child of this expression.
Definition: VEMCExpr.h:65
bool evaluateAsRelocatableImpl(MCValue &Res, const MCAsmLayout *Layout, const MCFixup *Fixup) const override
Definition: VEMCExpr.cpp:174
MCFragment * findAssociatedFragment() const
Find the "associated section" for this expression, which is currently defined as the absolute section...
Definition: MCExpr.cpp:999
void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override
Definition: VEMCExpr.cpp:30
MCFragment * findAssociatedFragment() const override
Definition: VEMCExpr.h:75
static const VEMCExpr * create(VariantKind Kind, const MCExpr *Expr, MCContext &Ctx)
Definition: VEMCExpr.cpp:25
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:50
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:57
VariantKind getKind() const
getOpcode - Get the kind of this expression.
Definition: VEMCExpr.h:62
VE::Fixups getFixupKind() const
getFixupKind - Get the fixup kind of this expression.
Definition: VEMCExpr.h:68
static bool classof(const VEMCExpr *)
Definition: VEMCExpr.h:85
void visitUsedExpr(MCStreamer &Streamer) const override
Definition: VEMCExpr.cpp:210