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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit/x64/Lowering-x64.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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/. */
+
+#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 */