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/* -*- 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/. */
#include "jit/riscv64/Architecture-riscv64.h"
#include "jit/FlushICache.h" // js::jit::FlushICache
#include "jit/RegisterSets.h"
#include "jit/Simulator.h"
namespace js {
namespace jit {
Registers::Code Registers::FromName(const char* name) {
for (size_t i = 0; i < Total; i++) {
if (strcmp(GetName(i), name) == 0) {
return Code(i);
}
}
return Invalid;
}
FloatRegisters::Code FloatRegisters::FromName(const char* name) {
for (size_t i = 0; i < Total; i++) {
if (strcmp(GetName(i), name) == 0) {
return Code(i);
}
}
return Invalid;
}
FloatRegisterSet FloatRegister::ReduceSetForPush(const FloatRegisterSet& s) {
#ifdef ENABLE_WASM_SIMD
# error "Needs more careful logic if SIMD is enabled"
#endif
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();
}
FloatRegister FloatRegister::singleOverlay() const {
MOZ_ASSERT(!isInvalid());
if (kind_ == Codes::Double) {
return FloatRegister(encoding_, Codes::Single);
}
return *this;
}
FloatRegister FloatRegister::doubleOverlay() const {
MOZ_ASSERT(!isInvalid());
if (kind_ != Codes::Double) {
return FloatRegister(encoding_, Codes::Double);
}
return *this;
}
uint32_t FloatRegister::GetPushSizeInBytes(
const TypedRegisterSet<FloatRegister>& s) {
#ifdef ENABLE_WASM_SIMD
# error "Needs more careful logic if SIMD is enabled"
#endif
return s.size() * sizeof(double);
}
void FlushICache(void* code, size_t size) {
#if defined(JS_SIMULATOR)
js::jit::SimulatorProcess::FlushICache(code, size);
#elif defined(__linux__)
# if defined(__GNUC__)
intptr_t end = reinterpret_cast<intptr_t>(code) + size;
__builtin___clear_cache(reinterpret_cast<char*>(code),
reinterpret_cast<char*>(end));
# else
_flush_cache(reinterpret_cast<char*>(code), size, BCACHE);
# endif
#else
# error "Unsupported platform"
#endif
}
bool CPUFlagsHaveBeenComputed() {
// TODO Add CPU flags support
// Flags were computed above.
return true;
}
} // namespace jit
} // namespace js
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