[Qemu-devel] [PATCH] target-xtensa: de-optimize EXTUI

[Aurelien Jarno <aurelien@aurel32.net>]

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

Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 target-xtensa/translate.c |   15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index ba3ffcb..c1358ee 100644
--- a/target-xtensa/translate.c
+++ b/target-xtensa/translate.c
@@ -1835,20 +1835,7 @@ static void disas_xtensa_insn(DisasContext *dc)
                 } 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_andi_i32(cpu_R[RRR_R], tmp, maskimm);
                 tcg_temp_free(tmp);
             }
             break;
-- 
1.7.10.4