From 8e91ed308062e742610e4cfdfd4a09bc045ead45 Mon Sep 17 00:00:00 2001 From: Artyom Tarasenko Date: Fri, 1 Jul 2011 21:28:42 +0200 Subject: [PATCH] fix cpu_cc_src and cpu_cc_src2 corruption in udivx and sdivx udivx and sdvix don't modify condition flags, so they shall not overwrite cpu_cc_* Signed-off-by: Artyom Tarasenko Signed-off-by: Blue Swirl --- target-sparc/translate.c | 32 ++++++++++++++++++++++---------- 1 file changed, 22 insertions(+), 10 deletions(-) diff --git a/target-sparc/translate.c b/target-sparc/translate.c index 992cd77e72..f32a674f35 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -727,19 +727,24 @@ static inline void gen_trap_ifdivzero_tl(TCGv divisor) static inline void gen_op_sdivx(TCGv dst, TCGv src1, TCGv src2) { int l1, l2; + TCGv r_temp1, r_temp2; l1 = gen_new_label(); l2 = gen_new_label(); - tcg_gen_mov_tl(cpu_cc_src, src1); - tcg_gen_mov_tl(cpu_cc_src2, src2); - gen_trap_ifdivzero_tl(cpu_cc_src2); - tcg_gen_brcondi_tl(TCG_COND_NE, cpu_cc_src, INT64_MIN, l1); - tcg_gen_brcondi_tl(TCG_COND_NE, cpu_cc_src2, -1, l1); + r_temp1 = tcg_temp_local_new(); + r_temp2 = tcg_temp_local_new(); + tcg_gen_mov_tl(r_temp1, src1); + tcg_gen_mov_tl(r_temp2, src2); + gen_trap_ifdivzero_tl(r_temp2); + tcg_gen_brcondi_tl(TCG_COND_NE, r_temp1, INT64_MIN, l1); + tcg_gen_brcondi_tl(TCG_COND_NE, r_temp2, -1, l1); tcg_gen_movi_i64(dst, INT64_MIN); tcg_gen_br(l2); gen_set_label(l1); - tcg_gen_div_i64(dst, cpu_cc_src, cpu_cc_src2); + tcg_gen_div_i64(dst, r_temp1, r_temp2); gen_set_label(l2); + tcg_temp_free(r_temp1); + tcg_temp_free(r_temp2); } #endif @@ -3173,10 +3178,17 @@ static void disas_sparc_insn(DisasContext * dc) break; #ifdef TARGET_SPARC64 case 0xd: /* V9 udivx */ - tcg_gen_mov_tl(cpu_cc_src, cpu_src1); - tcg_gen_mov_tl(cpu_cc_src2, cpu_src2); - gen_trap_ifdivzero_tl(cpu_cc_src2); - tcg_gen_divu_i64(cpu_dst, cpu_cc_src, cpu_cc_src2); + { + TCGv r_temp1, r_temp2; + r_temp1 = tcg_temp_local_new(); + r_temp2 = tcg_temp_local_new(); + tcg_gen_mov_tl(r_temp1, cpu_src1); + tcg_gen_mov_tl(r_temp2, cpu_src2); + gen_trap_ifdivzero_tl(r_temp2); + tcg_gen_divu_i64(cpu_dst, r_temp1, r_temp2); + tcg_temp_free(r_temp1); + tcg_temp_free(r_temp2); + } break; #endif case 0xe: /* udiv */ -- 2.11.4.GIT