| Index: src/mips/register-allocator-mips-inl.h
|
| ===================================================================
|
| --- src/mips/register-allocator-mips-inl.h (revision 0)
|
| +++ src/mips/register-allocator-mips-inl.h (revision 0)
|
| @@ -0,0 +1,137 @@
|
| +// Copyright 2006-2008 the V8 project authors. All rights reserved.
|
| +// Redistribution and use in source and binary forms, with or without
|
| +// modification, are permitted provided that the following conditions are
|
| +// met:
|
| +//
|
| +// * Redistributions of source code must retain the above copyright
|
| +// notice, this list of conditions and the following disclaimer.
|
| +// * Redistributions in binary form must reproduce the above
|
| +// copyright notice, this list of conditions and the following
|
| +// disclaimer in the documentation and/or other materials provided
|
| +// with the distribution.
|
| +// * Neither the name of Google Inc. nor the names of its
|
| +// contributors may be used to endorse or promote products derived
|
| +// from this software without specific prior written permission.
|
| +//
|
| +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
| +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
| +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
| +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
| +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
| +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
| +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| +
|
| +#ifndef V8_IA32_REGISTER_ALLOCATOR_MIPS_INL_H_
|
| +#define V8_IA32_REGISTER_ALLOCATOR_MIPS_INL_H_
|
| +
|
| +#include "v8.h"
|
| +#include "mips/assembler-mips.h"
|
| +
|
| +namespace v8 {
|
| +namespace internal {
|
| +
|
| +// -------------------------------------------------------------------------
|
| +// RegisterAllocator implementation.
|
| +
|
| +bool RegisterAllocator::IsReserved(Register reg) {
|
| + // The code for this test relies on the order of register codes.
|
| + return reg.is(cp) || reg.is(s8_fp) || reg.is(sp);
|
| +}
|
| +
|
| +
|
| +int RegisterAllocator::ToNumber(Register reg) {
|
| + ASSERT(reg.is_valid() && !IsReserved(reg));
|
| + const int kNumbers[] = {
|
| + 0, // zero_reg
|
| + 1, // at
|
| + 2, // v0
|
| + 3, // v1
|
| + 4, // a0
|
| + 5, // a1
|
| + 6, // a2
|
| + 7, // a3
|
| + 8, // t0
|
| + 9, // t1
|
| + 10, // t2
|
| + 11, // t3
|
| + 12, // t4
|
| + 13, // t5
|
| + 14, // t
|
| + 15, // t7
|
| + 16, // t8
|
| + 17, // t9
|
| + 18, // s0
|
| + 19, // s1
|
| + 20, // s2
|
| + 21, // s3
|
| + 22, // s4
|
| + 23, // s5
|
| + 24, // s6
|
| + 25, // s7
|
| + 26, // k0
|
| + 27, // k1
|
| + 28, // gp
|
| + 29, // sp
|
| + 30, // s8_fp
|
| + 31, // ra
|
| + };
|
| + return kNumbers[reg.code()];
|
| +}
|
| +
|
| +
|
| +Register RegisterAllocator::ToRegister(int num) {
|
| + ASSERT(num >= 0 && num < kNumRegisters);
|
| + const Register kRegisters[] = {
|
| + zero_reg,
|
| + 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,
|
| + s8_fp,
|
| + ra
|
| + };
|
| + return kRegisters[num];
|
| +}
|
| +
|
| +
|
| +void RegisterAllocator::Initialize() {
|
| + Reset();
|
| + // The non-reserved a1 and ra registers are live on JS function entry.
|
| + Use(a1); // JS function.
|
| + Use(ra); // Return address.
|
| +}
|
| +
|
| +
|
| +} } // namespace v8::internal
|
| +
|
| +#endif // V8_IA32_REGISTER_ALLOCATOR_MIPS_INL_H_
|
| +
|
|
|