1 files changed, 88 insertions, 0 deletions
diff --git a/js/src/jit/mips64/Architecture-mips64.cpp b/js/src/jit/mips64/Architecture-mips64.cpp
new file mode 100644
index 0000000000..54ae127954
--- /dev/null
+++ b/js/src/jit/mips64/Architecture-mips64.cpp
@@ -0,0 +1,88 @@
+/* -*- 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/. */
+
+#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) {
+#ifdef ENABLE_WASM_SIMD
+#  error "Needs more careful logic if SIMD is enabled"
+#endif
+
+  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) {
+#ifdef ENABLE_WASM_SIMD
+#  error "Needs more careful logic if SIMD is enabled"
+#endif
+
+  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 jit
+}  // namespace js