src/mips/register-allocator-mips-inl.h

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#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();
}


} }  // namespace v8::internal

#endif  // V8_IA32_REGISTER_ALLOCATOR_MIPS_INL_H_