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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();
// 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_