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target-xtensa: de-optimize EXTUI

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Now that "and" with 0xff, 0xffff and 0xffffffff and "shr" with 0 shift
are optimized in tcg/tcg-op.h there is no need to do it in
target-xtensa/translate.c.

Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2012-10-01 21:00:42 +02:00
parent c9159fe9aa
commit f783cb2240
1 changed files with 2 additions and 20 deletions
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22
target-xtensa/translate.c
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@ -1829,26 +1829,8 @@ static void disas_xtensa_insn(DisasContext *dc)
int maskimm = (1 << (OP2 + 1)) - 1;
TCGv_i32 tmp = tcg_temp_new_i32();
if (shiftimm) {
tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm);
} else {
tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);
}
switch (maskimm) {
case 0xff:
tcg_gen_ext8u_i32(cpu_R[RRR_R], tmp);
break;
case 0xffff:
tcg_gen_ext16u_i32(cpu_R[RRR_R], tmp);
break;
default:
tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm);
break;
}
tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm);
tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm);
tcg_temp_free(tmp);
}
break;