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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /js/src/jit/mips32/Architecture-mips32.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit/mips32/Architecture-mips32.cpp')
-rw-r--r--js/src/jit/mips32/Architecture-mips32.cpp102
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
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+++ 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
+