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-rw-r--r--js/src/jit/mips64/Architecture-mips64.cpp93
1 files changed, 93 insertions, 0 deletions
diff --git a/js/src/jit/mips64/Architecture-mips64.cpp b/js/src/jit/mips64/Architecture-mips64.cpp
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+++ b/js/src/jit/mips64/Architecture-mips64.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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)
+{
+ 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)
+{
+ 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 ion
+} // namespace js
+