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target-sparc: Move sdivx and udivx out of line

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The branches around the exception are maintaining an otherwise
unnecessary use of local temps for the cpu destination.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2012-10-05 16:55:03 -07:00 • committed by Blue Swirl
parent 61316742e2
commit c28ae41ecd
5 changed files with 37 additions and 52 deletions
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52
target-sparc/translate.c
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@ -768,44 +768,6 @@ static inline void gen_op_smul(TCGv dst, TCGv src1, TCGv src2)
gen_op_multiply(dst, src1, src2, 1);
}
#ifdef TARGET_SPARC64
static inline void gen_trap_ifdivzero_tl(TCGv divisor)
{
TCGv_i32 r_const;
int l1;
l1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_NE, divisor, 0, l1);
r_const = tcg_const_i32(TT_DIV_ZERO);
gen_helper_raise_exception(cpu_env, r_const);
tcg_temp_free_i32(r_const);
gen_set_label(l1);
}
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();
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, r_temp1, r_temp2);
gen_set_label(l2);
tcg_temp_free(r_temp1);
tcg_temp_free(r_temp2);
}
#endif
// 1
static inline void gen_op_eval_ba(TCGv dst)
{
@ -3591,17 +3553,7 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
#ifdef TARGET_SPARC64
case 0xd: /* V9 udivx */
{
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);
}
gen_helper_udivx(cpu_dst, cpu_env, cpu_src1, cpu_src2);
break;
#endif
case 0xe: /* udiv */
@ -4102,7 +4054,7 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
}
case 0x2d: /* V9 sdivx */
gen_op_sdivx(cpu_dst, cpu_src1, cpu_src2);
gen_helper_sdivx(cpu_dst, cpu_env, cpu_src1, cpu_src2);
gen_movl_TN_reg(rd, cpu_dst);
break;
case 0x2e: /* V9 popc */