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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/jit/mips64/Architecture-mips64.cpp | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/jit/mips64/Architecture-mips64.cpp | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/js/src/jit/mips64/Architecture-mips64.cpp b/js/src/jit/mips64/Architecture-mips64.cpp new file mode 100644 index 0000000000..54ae127954 --- /dev/null +++ b/js/src/jit/mips64/Architecture-mips64.cpp @@ -0,0 +1,88 @@ +/* -*- 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/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) { +#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(); +} + +uint32_t FloatRegister::GetPushSizeInBytes(const FloatRegisterSet& s) { +#ifdef ENABLE_WASM_SIMD +# error "Needs more careful logic if SIMD is enabled" +#endif + + 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 jit +} // namespace js |