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target-i386: use subfi instead of sub with a non-freed constant 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2009-09-27 00:48:05 +02:00
parent 067d01de29
commit 5b207c007c
1 changed files with 7 additions and 7 deletions
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14
target-i386/translate.c
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@ -1597,11 +1597,11 @@ static void gen_rot_rm_T1(DisasContext *s, int ot, int op1,
fix TCG definition) */
if (is_right) {
tcg_gen_shr_tl(cpu_tmp4, t0, cpu_tmp0);
tcg_gen_sub_tl(cpu_tmp0, tcg_const_tl(data_bits), cpu_tmp0);
tcg_gen_subfi_tl(cpu_tmp0, data_bits, cpu_tmp0);
tcg_gen_shl_tl(t0, t0, cpu_tmp0);
} else {
tcg_gen_shl_tl(cpu_tmp4, t0, cpu_tmp0);
tcg_gen_sub_tl(cpu_tmp0, tcg_const_tl(data_bits), cpu_tmp0);
tcg_gen_subfi_tl(cpu_tmp0, data_bits, cpu_tmp0);
tcg_gen_shr_tl(t0, t0, cpu_tmp0);
}
tcg_gen_or_tl(t0, t0, cpu_tmp4);
@ -1822,7 +1822,7 @@ static void gen_shiftd_rm_T1_T3(DisasContext *s, int ot, int op1,
tcg_gen_shr_tl(cpu_tmp4, t0, cpu_tmp5);
/* only needed if count > 16, but a test would complicate */
tcg_gen_sub_tl(cpu_tmp5, tcg_const_tl(32), t2);
tcg_gen_subfi_tl(cpu_tmp5, 32, t2);
tcg_gen_shl_tl(cpu_tmp0, t0, cpu_tmp5);
tcg_gen_shr_tl(t0, t0, t2);
@ -1836,12 +1836,12 @@ static void gen_shiftd_rm_T1_T3(DisasContext *s, int ot, int op1,
tcg_gen_ext32u_tl(t1, t1);
tcg_gen_shl_tl(cpu_tmp4, t0, cpu_tmp5);
tcg_gen_sub_tl(cpu_tmp0, tcg_const_tl(32), cpu_tmp5);
tcg_gen_subfi_tl(cpu_tmp0, 32, cpu_tmp5);
tcg_gen_shr_tl(cpu_tmp6, t1, cpu_tmp0);
tcg_gen_or_tl(cpu_tmp4, cpu_tmp4, cpu_tmp6);
tcg_gen_shl_tl(t0, t0, t2);
tcg_gen_sub_tl(cpu_tmp5, tcg_const_tl(32), t2);
tcg_gen_subfi_tl(cpu_tmp5, 32, t2);
tcg_gen_shr_tl(t1, t1, cpu_tmp5);
tcg_gen_or_tl(t0, t0, t1);
}
@ -1854,7 +1854,7 @@ static void gen_shiftd_rm_T1_T3(DisasContext *s, int ot, int op1,
tcg_gen_shr_tl(cpu_tmp4, t0, cpu_tmp5);
tcg_gen_shr_tl(t0, t0, t2);
tcg_gen_sub_tl(cpu_tmp5, tcg_const_tl(data_bits), t2);
tcg_gen_subfi_tl(cpu_tmp5, data_bits, t2);
tcg_gen_shl_tl(t1, t1, cpu_tmp5);
tcg_gen_or_tl(t0, t0, t1);
@ -1865,7 +1865,7 @@ static void gen_shiftd_rm_T1_T3(DisasContext *s, int ot, int op1,
tcg_gen_shl_tl(cpu_tmp4, t0, cpu_tmp5);
tcg_gen_shl_tl(t0, t0, t2);
tcg_gen_sub_tl(cpu_tmp5, tcg_const_tl(data_bits), t2);
tcg_gen_subfi_tl(cpu_tmp5, data_bits, t2);
tcg_gen_shr_tl(t1, t1, cpu_tmp5);
tcg_gen_or_tl(t0, t0, t1);
}