diff mbox series

[PULL,23/29] target/arm: Use tcg_gen_extract_i32 for shifter_out_im

Message ID 20190816131719.28244-24-peter.maydell@linaro.org
State New
Headers show
Series None | expand

Commit Message

Peter Maydell Aug. 16, 2019, 1:17 p.m. UTC 
From: Richard Henderson <richard.henderson@linaro.org>

Extract is a compact combination of shift + and.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190808202616.13782-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/target/arm/translate.c b/target/arm/translate.c
index 34e65cd80c0..14d6b6d4d28 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -605,14 +605,7 @@  static void gen_sar(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1)
 
 static void shifter_out_im(TCGv_i32 var, int shift)
 {
-    if (shift == 0) {
-        tcg_gen_andi_i32(cpu_CF, var, 1);
-    } else {
-        tcg_gen_shri_i32(cpu_CF, var, shift);
-        if (shift != 31) {
-            tcg_gen_andi_i32(cpu_CF, cpu_CF, 1);
-        }
-    }
+    tcg_gen_extract_i32(cpu_CF, var, shift, 1);
 }
 
 /* Shift by immediate.  Includes special handling for shift == 0.  */