target/arm: Use tcg_constant_i32() in gen_rev16()

Since the mask is a constant value, use tcg_constant_i32()
instead of a TCG temporary.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211029231834.2476117-6-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/arm/translate.c b/target/arm/translate.c
index 52ba562c96b8c017be2382dd7f05c945d9935bec..98f592592845f6507bc90ed1cf8b98e8e369cbaa 100644 (file)
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -388,13 +388,12 @@ static void gen_smul_dual(TCGv_i32 a, TCGv_i32 b)
 void gen_rev16(TCGv_i32 dest, TCGv_i32 var)
 {
     TCGv_i32 tmp = tcg_temp_new_i32();
-    TCGv_i32 mask = tcg_const_i32(0x00ff00ff);
+    TCGv_i32 mask = tcg_constant_i32(0x00ff00ff);
     tcg_gen_shri_i32(tmp, var, 8);
     tcg_gen_and_i32(tmp, tmp, mask);
     tcg_gen_and_i32(var, var, mask);
     tcg_gen_shli_i32(var, var, 8);
     tcg_gen_or_i32(dest, var, tmp);
-    tcg_temp_free_i32(mask);
     tcg_temp_free_i32(tmp);
 }