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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/arm64/Architecture-arm64.h"
#include <cstring>
#include "jit/arm64/vixl/Cpu-vixl.h"
#include "jit/FlushICache.h" // js::jit::FlushICache
#include "jit/RegisterSets.h"
namespace js {
namespace jit {
Registers::Code Registers::FromName(const char* name) {
// Check for some register aliases first.
if (strcmp(name, "ip0") == 0) {
return ip0;
}
if (strcmp(name, "ip1") == 0) {
return ip1;
}
if (strcmp(name, "fp") == 0) {
return fp;
}
for (uint32_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;
}
// These assume no SIMD registers as the register sets do not directly support
// SIMD. When SIMD is needed (wasm baseline + stubs), other routines are used.
FloatRegisterSet FloatRegister::ReduceSetForPush(const FloatRegisterSet& s) {
LiveFloatRegisterSet ret;
for (FloatRegisterIterator iter(s); iter.more(); ++iter) {
ret.addUnchecked(FromCode((*iter).encoding()));
}
return ret.set();
}
uint32_t FloatRegister::GetPushSizeInBytes(const FloatRegisterSet& s) {
return s.size() * sizeof(double);
}
uint32_t FloatRegister::getRegisterDumpOffsetInBytes() {
// Although registers are 128-bits wide, only the first 64 need saving per
// ABI.
return encoding() * sizeof(double);
}
#if defined(ENABLE_WASM_SIMD)
uint32_t FloatRegister::GetPushSizeInBytesForWasmStubs(
const FloatRegisterSet& s) {
return s.size() * SizeOfSimd128;
}
#endif
uint32_t GetARM64Flags() { return 0; }
void FlushICache(void* code, size_t size, bool codeIsThreadLocal) {
vixl::CPU::EnsureIAndDCacheCoherency(code, size, codeIsThreadLocal);
}
bool CanFlushICacheFromBackgroundThreads() {
return vixl::CPU::CanFlushICacheFromBackgroundThreads();
}
} // namespace jit
} // namespace js
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