[Qemu-devel] [PATCH v2 09/14] target/sh4: optimize gen_store_fpr64

[Aurelien Jarno]

Isuing extrh and avoiding intermediate temps.

Signed-off-by: Aurelien Jarno <address@hidden>
---
 target/sh4/translate.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/target/sh4/translate.c b/target/sh4/translate.c
index a4c7a0895b..b4e5606098 100644
--- a/target/sh4/translate.c
+++ b/target/sh4/translate.c
@@ -305,13 +305,8 @@ static inline void gen_load_fpr64(TCGv_i64 t, int reg)
 
 static inline void gen_store_fpr64 (TCGv_i64 t, int reg)
 {
-    TCGv_i32 tmp = tcg_temp_new_i32();
-    tcg_gen_extrl_i64_i32(tmp, t);
-    tcg_gen_mov_i32(cpu_fregs[reg + 1], tmp);
-    tcg_gen_shri_i64(t, t, 32);
-    tcg_gen_extrl_i64_i32(tmp, t);
-    tcg_gen_mov_i32(cpu_fregs[reg], tmp);
-    tcg_temp_free_i32(tmp);
+    tcg_gen_extrl_i64_i32(cpu_fregs[reg + 1], t);
+    tcg_gen_extrh_i64_i32(cpu_fregs[reg], t);
 }
 
 #define B3_0 (ctx->opcode & 0xf)
-- 
2.11.0