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target-sparc: Avoid cpu_tmp32 in Read Priv Register 

We don't need another temporary here.  Load directly into the
register we want to set.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2012-10-16 19:32:22 +10:00 committed by Blue Swirl
parent ba5f5179f2
commit 45778f99f0
1 changed files with 21 additions and 32 deletions
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53
target-sparc/translate.c
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@ -2865,14 +2865,12 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
case 3: // tt
{
TCGv_ptr r_tsptr;
TCGv_ptr r_tsptr = tcg_temp_new_ptr();
r_tsptr = tcg_temp_new_ptr();
gen_load_trap_state_at_tl(r_tsptr, cpu_env);
tcg_gen_ld_i32(cpu_tmp32, r_tsptr,
offsetof(trap_state, tt));
tcg_gen_ld32s_tl(cpu_tmp0, r_tsptr,
offsetof(trap_state, tt));
tcg_temp_free_ptr(r_tsptr);
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
}
break;
case 4: // tick
@ -2890,53 +2888,44 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
tcg_gen_mov_tl(cpu_tmp0, cpu_tbr);
break;
case 6: // pstate
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, pstate));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, pstate));
break;
case 7: // tl
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, tl));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, tl));
break;
case 8: // pil
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, psrpil));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, psrpil));
break;
case 9: // cwp
gen_helper_rdcwp(cpu_tmp0, cpu_env);
break;
case 10: // cansave
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, cansave));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, cansave));
break;
case 11: // canrestore
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, canrestore));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, canrestore));
break;
case 12: // cleanwin
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, cleanwin));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, cleanwin));
break;
case 13: // otherwin
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, otherwin));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, otherwin));
break;
case 14: // wstate
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, wstate));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, wstate));
break;
case 16: // UA2005 gl
CHECK_IU_FEATURE(dc, GL);
tcg_gen_ld_i32(cpu_tmp32, cpu_env,
offsetof(CPUSPARCState, gl));
tcg_gen_ext_i32_tl(cpu_tmp0, cpu_tmp32);
tcg_gen_ld32s_tl(cpu_tmp0, cpu_env,
offsetof(CPUSPARCState, gl));
break;
case 26: // UA2005 strand status
CHECK_IU_FEATURE(dc, HYPV);