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target-sparc: Avoid unnecessary local temporaries 

Now that save_state never ends a BB, we don't need to copy
values into local temps around it.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2012-10-09 14:49:59 -07:00 committed by Blue Swirl
parent 96b5a3d3cf
commit 6234ac09a9
1 changed files with 9 additions and 21 deletions
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30
target-sparc/translate.c
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@ -143,7 +143,7 @@ static TCGv_i32 gen_load_fpr_F(DisasContext *dc, unsigned int src)
if (src & 1) {
return MAKE_TCGV_I32(GET_TCGV_I64(cpu_fpr[src / 2]));
} else {
TCGv_i32 ret = tcg_temp_local_new_i32();
TCGv_i32 ret = tcg_temp_new_i32();
TCGv_i64 t = tcg_temp_new_i64();
tcg_gen_shri_i64(t, cpu_fpr[src / 2], 32);
@ -3885,28 +3885,16 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
tcg_gen_mov_tl(cpu_tbr, cpu_tmp0);
break;
case 6: // pstate
{
TCGv r_tmp = tcg_temp_local_new();
tcg_gen_mov_tl(r_tmp, cpu_tmp0);
save_state(dc);
gen_helper_wrpstate(cpu_env, r_tmp);
tcg_temp_free(r_tmp);
dc->npc = DYNAMIC_PC;
}
save_state(dc);
gen_helper_wrpstate(cpu_env, cpu_tmp0);
dc->npc = DYNAMIC_PC;
break;
case 7: // tl
{
TCGv r_tmp = tcg_temp_local_new();
tcg_gen_mov_tl(r_tmp, cpu_tmp0);
save_state(dc);
tcg_gen_trunc_tl_i32(cpu_tmp32, r_tmp);
tcg_temp_free(r_tmp);
tcg_gen_st_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, tl));
dc->npc = DYNAMIC_PC;
}
save_state(dc);
tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);
tcg_gen_st_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, tl));
dc->npc = DYNAMIC_PC;
break;
case 8: // pil
gen_helper_wrpil(cpu_env, cpu_tmp0);