Rotate is the more compact and obvious way to swap 16-bit
elements of a 32-bit word.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/arm/translate.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index b40f163bab..ddc54e77e4 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -459,11 +459,7 @@ static TCGv_i64 gen_muls_i64_i32(TCGv_i32 a, TCGv_i32 b)
/* Swap low and high halfwords. */
static void gen_swap_half(TCGv_i32 var)
{
- TCGv_i32 tmp = tcg_temp_new_i32();
- tcg_gen_shri_i32(tmp, var, 16);
- tcg_gen_shli_i32(var, var, 16);
- tcg_gen_or_i32(var, var, tmp);
- tcg_temp_free_i32(tmp);
+ tcg_gen_rotri_i32(var, var, 16);
}
/* Dual 16-bit add. Result placed in t0 and t1 is marked as dead.
--
2.17.1
