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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/x64/Lowering-x64.h | |
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/x64/Lowering-x64.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/js/src/jit/x64/Lowering-x64.h b/js/src/jit/x64/Lowering-x64.h new file mode 100644 index 0000000000..1c34ea8693 --- /dev/null +++ b/js/src/jit/x64/Lowering-x64.h @@ -0,0 +1,70 @@ +/* -*- 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/. */ + +#ifndef jit_x64_Lowering_x64_h +#define jit_x64_Lowering_x64_h + +#include "jit/x86-shared/Lowering-x86-shared.h" + +namespace js { +namespace jit { + +class LIRGeneratorX64 : public LIRGeneratorX86Shared { + protected: + LIRGeneratorX64(MIRGenerator* gen, MIRGraph& graph, LIRGraph& lirGraph) + : LIRGeneratorX86Shared(gen, graph, lirGraph) {} + + void lowerUntypedPhiInput(MPhi* phi, uint32_t inputPosition, LBlock* block, + size_t lirIndex); + void lowerInt64PhiInput(MPhi* phi, uint32_t inputPosition, LBlock* block, + size_t lirIndex); + void defineInt64Phi(MPhi* phi, size_t lirIndex); + + void lowerForALUInt64(LInstructionHelper<INT64_PIECES, INT64_PIECES, 0>* ins, + MDefinition* mir, MDefinition* input); + void lowerForALUInt64( + LInstructionHelper<INT64_PIECES, 2 * INT64_PIECES, 0>* ins, + MDefinition* mir, MDefinition* lhs, MDefinition* rhs); + void lowerForMulInt64(LMulI64* ins, MMul* mir, MDefinition* lhs, + MDefinition* rhs); + + // Returns a box allocation. reg2 is ignored on 64-bit platforms. + LBoxAllocation useBoxFixed(MDefinition* mir, Register reg1, Register, + bool useAtStart = false); + + // x86 has constraints on what registers can be formatted for 1-byte + // stores and loads; on x64 all registers are okay. + LAllocation useByteOpRegister(MDefinition* mir); + LAllocation useByteOpRegisterAtStart(MDefinition* mir); + LAllocation useByteOpRegisterOrNonDoubleConstant(MDefinition* mir); + LDefinition tempByteOpRegister(); + + LDefinition tempToUnbox(); + + bool needTempForPostBarrier() { return true; } + + void lowerBuiltinInt64ToFloatingPoint(MBuiltinInt64ToFloatingPoint* ins); + void lowerWasmBuiltinTruncateToInt64(MWasmBuiltinTruncateToInt64* ins); + void lowerDivI64(MDiv* div); + void lowerWasmBuiltinDivI64(MWasmBuiltinDivI64* div); + void lowerModI64(MMod* mod); + void lowerWasmBuiltinModI64(MWasmBuiltinModI64* mod); + void lowerUDivI64(MDiv* div); + void lowerUModI64(MMod* mod); + + void lowerBigIntDiv(MBigIntDiv* ins); + void lowerBigIntMod(MBigIntMod* ins); + + void lowerAtomicLoad64(MLoadUnboxedScalar* ins); + void lowerAtomicStore64(MStoreUnboxedScalar* ins); +}; + +using LIRGeneratorSpecific = LIRGeneratorX64; + +} // namespace jit +} // namespace js + +#endif /* jit_x64_Lowering_x64_h */ |