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target-sparc: Use movcond in mulscc 

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 16:55:06 -07:00 committed by Blue Swirl
parent a2ea4aa989
commit 6cb675b0f8
1 changed files with 5 additions and 6 deletions
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11
target-sparc/translate.c
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@ -582,22 +582,21 @@ static void gen_op_subx_int(DisasContext *dc, TCGv dst, TCGv src1,
static inline void gen_op_mulscc(TCGv dst, TCGv src1, TCGv src2)
{
TCGv r_temp;
int l1;
TCGv r_temp, zero;
l1 = gen_new_label();
r_temp = tcg_temp_new();
/* old op:
if (!(env->y & 1))
T1 = 0;
*/
zero = tcg_const_tl(0);
tcg_gen_andi_tl(cpu_cc_src, src1, 0xffffffff);
tcg_gen_andi_tl(r_temp, cpu_y, 0x1);
tcg_gen_andi_tl(cpu_cc_src2, src2, 0xffffffff);
tcg_gen_brcondi_tl(TCG_COND_NE, r_temp, 0, l1);
tcg_gen_movi_tl(cpu_cc_src2, 0);
gen_set_label(l1);
tcg_gen_movcond_tl(TCG_COND_EQ, cpu_cc_src2, r_temp, zero,
zero, cpu_cc_src2);
tcg_temp_free(zero);
// b2 = T0 & 1;
// env->y = (b2 << 31) | (env->y >> 1);