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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/mips64/SharedICRegisters-mips64.h
parentInitial commit. (diff)
downloadfirefox-esr-upstream.tar.xz
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Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit/mips64/SharedICRegisters-mips64.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_mips64_SharedICRegisters_mips64_h
+#define jit_mips64_SharedICRegisters_mips64_h
+
+#include "jit/mips64/Assembler-mips64.h"
+#include "jit/Registers.h"
+#include "jit/RegisterSets.h"
+
+namespace js {
+namespace jit {
+
+// ValueOperands R0, R1, and R2.
+// R0 == JSReturnReg, and R2 uses registers not preserved across calls. R1 value
+// should be preserved across calls.
+static constexpr ValueOperand R0(v1);
+static constexpr ValueOperand R1(s4);
+static constexpr ValueOperand R2(a6);
+
+// ICTailCallReg and ICStubReg
+// These use registers that are not preserved across calls.
+static constexpr Register ICTailCallReg = ra;
+static constexpr Register ICStubReg = a5;
+
+// Register used internally by MacroAssemblerMIPS.
+static constexpr Register BaselineSecondScratchReg = SecondScratchReg;
+
+// Note that ICTailCallReg is actually just the link register.
+// In MIPS code emission, we do not clobber ICTailCallReg since we keep
+// the return address for calls there.
+
+// FloatReg0 must be equal to ReturnFloatReg.
+static constexpr FloatRegister FloatReg0 = f0;
+static constexpr FloatRegister FloatReg1 = f2;
+static constexpr FloatRegister FloatReg2 = f4;
+static constexpr FloatRegister FloatReg3 = f6;
+
+} // namespace jit
+} // namespace js
+
+#endif /* jit_mips64_SharedICRegisters_mips64_h */