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
62
63
64
65
66
67
68
69
70
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jit_riscv64_MoveEmitter_riscv64_h
#define jit_riscv64_MoveEmitter_riscv64_h
#include "mozilla/Assertions.h"
#include "jit/MacroAssembler.h"
#include "jit/riscv64/Architecture-riscv64.h"
namespace js {
namespace jit {
class MacroAssemblerRiscv64;
class MoveResolver;
struct Register;
class MoveEmitterRiscv64 {
uint32_t inCycle_;
MacroAssembler& masm;
// Original stack push value.
uint32_t pushedAtStart_;
// These store stack offsets to spill locations, snapshotting
// codegen->framePushed_ at the time they were allocated. They are -1 if no
// stack space has been allocated for that particular spill.
int32_t pushedAtCycle_;
// These are registers that are available for temporary use. They may be
// assigned InvalidReg. If no corresponding spill space has been assigned,
// then these registers do not need to be spilled.
Register spilledReg_;
FloatRegister spilledFloatReg_;
public:
explicit MoveEmitterRiscv64(MacroAssembler& m)
: inCycle_(0),
masm(m),
pushedAtStart_(masm.framePushed()),
pushedAtCycle_(-1),
spilledReg_(InvalidReg),
spilledFloatReg_(InvalidFloatReg) {}
void emit(const MoveResolver&);
void emit(const MoveOp& move);
void emitMove(const MoveOperand& from, const MoveOperand& to);
void emitInt32Move(const MoveOperand& from, const MoveOperand& to);
void emitFloat32Move(const MoveOperand& from, const MoveOperand& to);
void emitDoubleMove(const MoveOperand& from, const MoveOperand& to);
void finish();
void assertDone();
void setScratchRegister(Register) { MOZ_CRASH("Unimplement on riscv"); }
Address cycleSlot(uint32_t slot, uint32_t subslot = 0) const;
int32_t getAdjustedOffset(const MoveOperand& operand);
Address getAdjustedAddress(const MoveOperand& operand);
void breakCycle(const MoveOperand& from, const MoveOperand& to,
MoveOp::Type type, uint32_t slotId);
void completeCycle(const MoveOperand& from, const MoveOperand& to,
MoveOp::Type type, uint32_t slot);
};
typedef MoveEmitterRiscv64 MoveEmitter;
} // namespace jit
} // namespace js
#endif /* jit_riscv64_MoveEmitter_riscv64_h */
|
