blob: 3e07b7e5ff97c007fb66423e1a5ae482f5fb1d2e (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
//===- PPCELFStreamer.h - ELF Object Output --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is a custom MCELFStreamer for PowerPC.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_PPC_MCELFSTREAMER_PPCELFSTREAMER_H
#define LLVM_LIB_TARGET_PPC_MCELFSTREAMER_PPCELFSTREAMER_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/MC/MCELFStreamer.h"
#include <memory>
namespace llvm {
class MCAsmBackend;
class MCCodeEmitter;
class MCContext;
class MCSubtargetInfo;
class PPCELFStreamer : public MCELFStreamer {
// We need to keep track of the last label we emitted (only one) because
// depending on whether the label is on the same line as an aligned
// instruction or not, the label may refer to the instruction or the nop.
MCSymbol *LastLabel;
SMLoc LastLabelLoc;
public:
PPCELFStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> MAB,
std::unique_ptr<MCObjectWriter> OW,
std::unique_ptr<MCCodeEmitter> Emitter);
void emitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) override;
// EmitLabel updates LastLabel and LastLabelLoc when a new label is emitted.
void emitLabel(MCSymbol *Symbol, SMLoc Loc = SMLoc()) override;
private:
void emitPrefixedInstruction(const MCInst &Inst, const MCSubtargetInfo &STI);
void emitGOTToPCRelReloc(const MCInst &Inst);
void emitGOTToPCRelLabel(const MCInst &Inst);
};
// Check if the instruction Inst is part of a pair of instructions that make up
// a link time GOT PC Rel optimization.
Optional<bool> isPartOfGOTToPCRelPair(const MCInst &Inst,
const MCSubtargetInfo &STI);
MCELFStreamer *createPPCELFStreamer(MCContext &Context,
std::unique_ptr<MCAsmBackend> MAB,
std::unique_ptr<MCObjectWriter> OW,
std::unique_ptr<MCCodeEmitter> Emitter);
} // end namespace llvm
#endif // LLVM_LIB_TARGET_PPC_MCELFSTREAMER_PPCELFSTREAMER_H
|
