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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* 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/. */
#include "jit/mips64/Architecture-mips64.h"
#include "jit/RegisterSets.h"
namespace js {
namespace jit {
const char * const Registers::RegNames[] = { "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
"a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3",
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
"t8", "t9", "k0", "k1", "gp", "sp", "fp", "ra" };
const uint32_t Allocatable = 22;
const Registers::SetType Registers::ArgRegMask =
Registers::SharedArgRegMask |
(1 << a4) | (1 << a5) | (1 << a6) | (1 << a7);
const Registers::SetType Registers::JSCallMask =
(1 << Registers::v1);
const Registers::SetType Registers::CallMask =
(1 << Registers::v0);
FloatRegisters::Encoding
FloatRegisters::FromName(const char* name)
{
for (size_t i = 0; i < Total; i++) {
if (strcmp(GetName(Encoding(i)), name) == 0)
return Encoding(i);
}
return Invalid;
}
FloatRegister
FloatRegister::singleOverlay() const
{
MOZ_ASSERT(!isInvalid());
if (kind_ == Codes::Double)
return FloatRegister(reg_, Codes::Single);
return *this;
}
FloatRegister
FloatRegister::doubleOverlay() const
{
MOZ_ASSERT(!isInvalid());
if (kind_ != Codes::Double)
return FloatRegister(reg_, Codes::Double);
return *this;
}
FloatRegisterSet
FloatRegister::ReduceSetForPush(const FloatRegisterSet& s)
{
LiveFloatRegisterSet mod;
for (FloatRegisterIterator iter(s); iter.more(); ++iter) {
if ((*iter).isSingle()) {
// Even for single size registers save complete double register.
mod.addUnchecked((*iter).doubleOverlay());
} else {
mod.addUnchecked(*iter);
}
}
return mod.set();
}
uint32_t
FloatRegister::GetPushSizeInBytes(const FloatRegisterSet& s)
{
FloatRegisterSet ss = s.reduceSetForPush();
uint64_t bits = ss.bits();
// We are only pushing double registers.
MOZ_ASSERT((bits & 0xffffffff) == 0);
uint32_t ret = mozilla::CountPopulation32(bits >> 32) * sizeof(double);
return ret;
}
uint32_t
FloatRegister::getRegisterDumpOffsetInBytes()
{
return id() * sizeof(double);
}
} // namespace ion
} // namespace js
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