Add m-esr52 at 52.6.0

1 files changed, 102 insertions, 0 deletions

diff --git a/js/src/jit/mips32/Architecture-mips32.cpp b/js/src/jit/mips32/Architecture-mips32.cpp
new file mode 100644
index 000000000..9aca3f831
--- /dev/null
+++ b/js/src/jit/mips32/Architecture-mips32.cpp
@@ -0,0 +1,102 @@
+/* -*- 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/mips32/Architecture-mips32.h"
+
+#include "jit/RegisterSets.h"
+
+namespace js {
+namespace jit {
+
+const char * const Registers::RegNames[] = { "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
+                                             "t0",   "t1", "t2", "t3", "t4", "t5", "t6", "t7",
+                                             "s0",   "s1", "s2", "s3", "s4", "s5", "s6", "s7",
+                                             "t8",   "t9", "k0", "k1", "gp", "sp", "fp", "ra" };
+
+const uint32_t Allocatable = 14;
+
+const Registers::SetType Registers::ArgRegMask = Registers::SharedArgRegMask;
+
+const Registers::SetType Registers::JSCallMask =
+    (1 << Registers::a2) |
+    (1 << Registers::a3);
+
+const Registers::SetType Registers::CallMask =
+    (1 << Registers::v0) |
+    (1 << Registers::v1);  // used for double-size returns
+
+FloatRegisters::Code
+FloatRegisters::FromName(const char* name)
+{
+    for (size_t i = 0; i < Total; i++) {
+        if (strcmp(GetName(i), name) == 0)
+            return Code(i);
+    }
+
+    return Invalid;
+}
+
+FloatRegister
+FloatRegister::doubleOverlay(unsigned int which) const
+{
+    MOZ_ASSERT(!isInvalid());
+    if (kind_ != Double)
+        return FloatRegister(code_ & ~1, Double);
+    return *this;
+}
+
+FloatRegister
+FloatRegister::singleOverlay(unsigned int which) const
+{
+    MOZ_ASSERT(!isInvalid());
+    if (kind_ == Double) {
+        // Only even registers are double
+        MOZ_ASSERT(code_ % 2 == 0);
+        MOZ_ASSERT(which < 2);
+        return FloatRegister(code_ + which, Single);
+    }
+    MOZ_ASSERT(which == 0);
+    return FloatRegister(code_, Single);
+}
+
+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()
+{
+    if (isSingle())
+        return id() * sizeof(float);
+    if (isDouble())
+        return id() * sizeof(double);
+    MOZ_CRASH();
+}
+
+} // namespace ion
+} // namespace js
+