diff options
Diffstat (limited to 'target/sparc/translate.c')
| -rw-r--r-- | target/sparc/translate.c | 66 |
1 files changed, 27 insertions, 39 deletions
diff --git a/target/sparc/translate.c b/target/sparc/translate.c index 261f142636..b11d89343b 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -1117,48 +1117,24 @@ static void gen_compare(DisasCompare *cmp, bool xcc, unsigned int cond, -1, /* no overflow */ }; - static int logic_cond[16] = { - TCG_COND_NEVER, - TCG_COND_EQ, /* eq: Z */ - TCG_COND_LE, /* le: Z | (N ^ V) -> Z | N */ - TCG_COND_LT, /* lt: N ^ V -> N */ - TCG_COND_EQ, /* leu: C | Z -> Z */ - TCG_COND_NEVER, /* ltu: C -> 0 */ - TCG_COND_LT, /* neg: N */ - TCG_COND_NEVER, /* vs: V -> 0 */ - TCG_COND_ALWAYS, - TCG_COND_NE, /* ne: !Z */ - TCG_COND_GT, /* gt: !(Z | (N ^ V)) -> !(Z | N) */ - TCG_COND_GE, /* ge: !(N ^ V) -> !N */ - TCG_COND_NE, /* gtu: !(C | Z) -> !Z */ - TCG_COND_ALWAYS, /* geu: !C -> 1 */ - TCG_COND_GE, /* pos: !N */ - TCG_COND_ALWAYS, /* vc: !V -> 1 */ - }; - TCGv t1, t2; cmp->is_bool = false; switch (dc->cc_op) { - case CC_OP_LOGIC: - cmp->cond = logic_cond[cond]; - do_compare_dst_0: - cmp->c2 = tcg_constant_tl(0); - if (TARGET_LONG_BITS == 32 || xcc) { - cmp->c1 = cpu_cc_dst; - } else { - cmp->c1 = t1 = tcg_temp_new(); - tcg_gen_ext32s_tl(t1, cpu_cc_dst); - } - return; - case CC_OP_SUB: switch (cond) { case 6: /* neg */ case 14: /* pos */ cmp->cond = (cond == 6 ? TCG_COND_LT : TCG_COND_GE); - goto do_compare_dst_0; + cmp->c2 = tcg_constant_tl(0); + if (TARGET_LONG_BITS == 32 || xcc) { + cmp->c1 = cpu_cc_dst; + } else { + cmp->c1 = t1 = tcg_temp_new(); + tcg_gen_ext32s_tl(t1, cpu_cc_dst); + } + return; case 7: /* overflow */ case 15: /* !overflow */ @@ -3652,7 +3628,8 @@ TRANS(NOP_v9, 64, trans_NOP, a) static bool do_arith_int(DisasContext *dc, arg_r_r_ri_cc *a, int cc_op, void (*func)(TCGv, TCGv, TCGv), - void (*funci)(TCGv, TCGv, target_long)) + void (*funci)(TCGv, TCGv, target_long), + bool logic_cc) { TCGv dst, src1; @@ -3661,7 +3638,9 @@ static bool do_arith_int(DisasContext *dc, arg_r_r_ri_cc *a, int cc_op, return false; } - if (a->cc) { + if (logic_cc) { + dst = cpu_cc_N; + } else if (a->cc && cc_op > CC_OP_FLAGS) { dst = cpu_cc_dst; } else { dst = gen_dest_gpr(dc, a->rd); @@ -3677,6 +3656,17 @@ static bool do_arith_int(DisasContext *dc, arg_r_r_ri_cc *a, int cc_op, } else { func(dst, src1, cpu_regs[a->rs2_or_imm]); } + + if (logic_cc) { + if (TARGET_LONG_BITS == 64) { + tcg_gen_mov_tl(cpu_icc_Z, cpu_cc_N); + tcg_gen_movi_tl(cpu_icc_C, 0); + } + tcg_gen_mov_tl(cpu_cc_Z, cpu_cc_N); + tcg_gen_movi_tl(cpu_cc_C, 0); + tcg_gen_movi_tl(cpu_cc_V, 0); + } + gen_store_gpr(dc, a->rd, dst); if (a->cc) { @@ -3693,16 +3683,16 @@ static bool do_arith(DisasContext *dc, arg_r_r_ri_cc *a, int cc_op, { if (a->cc) { assert(cc_op >= 0); - return do_arith_int(dc, a, cc_op, func_cc, NULL); + return do_arith_int(dc, a, cc_op, func_cc, NULL, false); } - return do_arith_int(dc, a, cc_op, func, funci); + return do_arith_int(dc, a, cc_op, func, funci, false); } static bool do_logic(DisasContext *dc, arg_r_r_ri_cc *a, void (*func)(TCGv, TCGv, TCGv), void (*funci)(TCGv, TCGv, target_long)) { - return do_arith_int(dc, a, CC_OP_LOGIC, func, funci); + return do_arith_int(dc, a, CC_OP_FLAGS, func, funci, a->cc); } TRANS(ADD, ALL, do_arith, a, CC_OP_ADD, @@ -3754,7 +3744,6 @@ static bool trans_ADDC(DisasContext *dc, arg_r_r_ri_cc *a) { switch (dc->cc_op) { case CC_OP_DIV: - case CC_OP_LOGIC: /* Carry is known to be zero. Fall back to plain ADD. */ return do_arith(dc, a, CC_OP_ADD, tcg_gen_add_tl, tcg_gen_addi_tl, gen_op_add_cc); @@ -3778,7 +3767,6 @@ static bool trans_SUBC(DisasContext *dc, arg_r_r_ri_cc *a) { switch (dc->cc_op) { case CC_OP_DIV: - case CC_OP_LOGIC: /* Carry is known to be zero. Fall back to plain SUB. */ return do_arith(dc, a, CC_OP_SUB, tcg_gen_sub_tl, tcg_gen_subi_tl, gen_op_sub_cc); |