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Bug 1271968 - IonMonkey: MIPS: Merge MacroAssembler::ma_jal.

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Tag: #1542
This commit is contained in:
Jiaxun Yang 2020-05-12 12:40:08 +08:00 • committed by Roy Tam
commit 0688bb7159
6 changed files with 26 additions and 51 deletions
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24
js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp
View file

@ -727,6 +727,30 @@ MacroAssemblerMIPSShared::ma_b(wasm::TrapDesc target, JumpKind jumpKind)
bindLater(&label, target);
}
void
MacroAssemblerMIPSShared::ma_jal(Label* label)
{
if (label->bound()) {
// Generate the mixed jump.
addMixedJump(nextOffset(), ImmPtr((void*)label->offset()));
as_jal(JOffImm26(0));
as_nop();
return;
}
// Second word holds a pointer to the next branch in label's chain.
uint32_t nextInChain = label->used() ? label->offset() : LabelBase::INVALID_OFFSET;
// Make the whole branch continous in the buffer. The '2'
// instructions are writing at below (contain delay slot).
m_buffer.ensureSpace(2 * sizeof(uint32_t));
BufferOffset bo = as_jal(JOffImm26(0));
writeInst(nextInChain);
if (!oom())
label->use(bo.getOffset());
}
Assembler::Condition
MacroAssemblerMIPSShared::ma_cmp(Register scratch, Register lhs, Register rhs, Condition c)
{

2
js/src/jit/mips-shared/MacroAssembler-mips-shared.h
View file

@ -164,6 +164,8 @@ class MacroAssemblerMIPSShared : public Assembler
void ma_b(Label* l, JumpKind jumpKind = MixedJump);
void ma_b(wasm::TrapDesc target, JumpKind jumpKind = MixedJump);
void ma_jal(Label* l);
// fp instructions
void ma_lis(FloatRegister dest, float value);
void ma_lis(FloatRegister dest, wasm::RawF32 value);

23
js/src/jit/mips32/MacroAssembler-mips32.cpp
View file

@ -503,29 +503,6 @@ MacroAssemblerMIPS::ma_b(Address addr, ImmGCPtr imm, Label* label, Condition c,
ma_b(SecondScratchReg, imm, label, c, jumpKind);
}
void
MacroAssemblerMIPS::ma_jal(Label* label)
{
if (label->bound()) {
// Generate the mixed jump.
addMixedJump(nextOffset(), ImmPtr((void*)label->offset()));
as_jal(JOffImm26(0));
as_nop();
return;
}
// Second word holds a pointer to the next branch in label's chain.
uint32_t nextInChain = label->used() ? label->offset() : LabelBase::INVALID_OFFSET;
// Make the whole branch continous in the buffer.
m_buffer.ensureSpace(2 * sizeof(uint32_t));
BufferOffset bo = as_jal(JOffImm26(0));
writeInst(nextInChain);
if (!oom())
label->use(bo.getOffset());
}
void
MacroAssemblerMIPS::branchWithCode(InstImm code, Label* label, JumpKind jumpKind)
{

2
js/src/jit/mips32/MacroAssembler-mips32.h
View file

@ -109,8 +109,6 @@ class MacroAssemblerMIPS : public MacroAssemblerMIPSShared
ma_b(ScratchRegister, rhs, l, c, jumpKind);
}
void ma_jal(Label* l);
// fp instructions
void ma_lid(FloatRegister dest, double value);

24
js/src/jit/mips64/MacroAssembler-mips64.cpp
View file

@ -756,30 +756,6 @@ MacroAssemblerMIPS64::ma_b(Address addr, ImmGCPtr imm, Label* label, Condition c
ma_b(SecondScratchReg, imm, label, c, jumpKind);
}
void
MacroAssemblerMIPS64::ma_jal(Label* label)
{
if (label->bound()) {
// Generate the mixed jump.
addMixedJump(nextOffset(), ImmPtr((void*)label->offset()));
as_jal(JOffImm26(0));
as_nop();
return;
}
// Second word holds a pointer to the next branch in label's chain.
uint32_t nextInChain = label->used() ? label->offset() : LabelBase::INVALID_OFFSET;
// Make the whole branch continous in the buffer. The '2'
// instructions are writing at below (contain delay slot).
m_buffer.ensureSpace(2 * sizeof(uint32_t));
BufferOffset bo = as_jal(JOffImm26(0));
writeInst(nextInChain);
if (!oom())
label->use(bo.getOffset());
}
void
MacroAssemblerMIPS64::branchWithCode(InstImm code, Label* label, JumpKind jumpKind)
{

2
js/src/jit/mips64/MacroAssembler-mips64.h
View file

@ -127,8 +127,6 @@ class MacroAssemblerMIPS64 : public MacroAssemblerMIPSShared
ma_b(ScratchRegister, rhs, l, c, jumpKind);
}
void ma_jal(Label* l);
// fp instructions
void ma_lid(FloatRegister dest, double value);