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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /js/src/jit/Lowering.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit/Lowering.h')
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diff --git a/js/src/jit/Lowering.h b/js/src/jit/Lowering.h
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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_Lowering_h
+#define jit_Lowering_h
+
+// This file declares the structures that are used for attaching LIR to a
+// MIRGraph.
+
+#include "jit/LIR.h"
+#if defined(JS_CODEGEN_X86)
+# include "jit/x86/Lowering-x86.h"
+#elif defined(JS_CODEGEN_X64)
+# include "jit/x64/Lowering-x64.h"
+#elif defined(JS_CODEGEN_ARM)
+# include "jit/arm/Lowering-arm.h"
+#elif defined(JS_CODEGEN_ARM64)
+# include "jit/arm64/Lowering-arm64.h"
+#elif defined(JS_CODEGEN_MIPS32)
+# include "jit/mips32/Lowering-mips32.h"
+#elif defined(JS_CODEGEN_MIPS64)
+# include "jit/mips64/Lowering-mips64.h"
+#elif defined(JS_CODEGEN_LOONG64)
+# include "jit/loong64/Lowering-loong64.h"
+#elif defined(JS_CODEGEN_RISCV64)
+# include "jit/riscv64/Lowering-riscv64.h"
+#elif defined(JS_CODEGEN_WASM32)
+# include "jit/wasm32/Lowering-wasm32.h"
+#elif defined(JS_CODEGEN_NONE)
+# include "jit/none/Lowering-none.h"
+#else
+# error "Unknown architecture!"
+#endif
+
+namespace js {
+namespace jit {
+
+class LIRGenerator final : public LIRGeneratorSpecific {
+ void updateResumeState(MInstruction* ins);
+ void updateResumeState(MBasicBlock* block);
+
+ // The maximum depth, for framesizeclass determination.
+ uint32_t maxargslots_;
+
+ public:
+ LIRGenerator(MIRGenerator* gen, MIRGraph& graph, LIRGraph& lirGraph)
+ : LIRGeneratorSpecific(gen, graph, lirGraph), maxargslots_(0) {}
+
+ [[nodiscard]] bool generate();
+
+ private:
+ LBoxAllocation useBoxFixedAtStart(MDefinition* mir, Register reg1,
+ Register reg2) {
+ return useBoxFixed(mir, reg1, reg2, /* useAtStart = */ true);
+ }
+
+ LBoxAllocation useBoxFixedAtStart(MDefinition* mir, ValueOperand op);
+ LBoxAllocation useBoxAtStart(MDefinition* mir,
+ LUse::Policy policy = LUse::REGISTER);
+
+ void lowerBitOp(JSOp op, MBinaryInstruction* ins);
+ void lowerShiftOp(JSOp op, MShiftInstruction* ins);
+ LInstructionHelper<1, 1, 0>* allocateAbs(MAbs* ins, LAllocation input);
+ bool definePhis();
+
+ template <typename T>
+ [[nodiscard]] bool lowerCallArguments(T* call);
+
+ friend class LIRGeneratorShared;
+ void visitInstructionDispatch(MInstruction* ins);
+
+ void visitReturnImpl(MDefinition* def, bool isGenerator = false);
+
+ [[nodiscard]] bool visitInstruction(MInstruction* ins);
+ [[nodiscard]] bool visitBlock(MBasicBlock* block);
+
+#define MIR_OP(op) void visit##op(M##op* ins);
+ MIR_OPCODE_LIST(MIR_OP)
+#undef MIR_OP
+
+ template <class MWasmCallT>
+ void visitWasmCall(MWasmCallT ins);
+
+ WasmRefIsSubtypeDefs useWasmRefIsSubtype(wasm::RefType destType,
+ MDefinition* superSTV);
+};
+
+} // namespace jit
+} // namespace js
+
+#endif /* jit_Lowering_h */