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sparc64: fix wrpstate and wrtl on delay slot

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Use TCG local to work around TCG register flush due to a branch.

Thanks to Artyom Tarasenko, Igor Kovalenko and Aurelien Jarno.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2011-04-26 18:44:20 +00:00
parent 711c21280b
commit a2589e5cf2
1 changed files with 20 additions and 8 deletions
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16
target-sparc/translate.c
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@ -3505,16 +3505,28 @@ static void disas_sparc_insn(DisasContext * dc)
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, cpu_cond);
gen_helper_wrpstate(cpu_tmp0);
gen_helper_wrpstate(r_tmp);
tcg_temp_free(r_tmp);
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, cpu_cond);
tcg_gen_trunc_tl_i32(cpu_tmp32, cpu_tmp0);
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;
}
break;
case 8: // pil
gen_helper_wrpil(cpu_tmp0);