From f783cb22409c6537b3cab7e78e527f62b4237d1e Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Mon, 1 Oct 2012 21:00:42 +0200
Subject: [PATCH] target-xtensa: de-optimize EXTUI
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>
---
target-xtensa/translate.c | 22 ++--------------------
1 file changed, 2 insertions(+), 20 deletions(-)
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index b9acd706ce..82e8cccadc 100644
--- a/target-xtensa/translate.c
+++ b/target-xtensa/translate.c
@@ -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;