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[Qemu-devel] [PATCH 09/14] target/sh4: optimize gen_store_fpr64
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 09/14] target/sh4: optimize gen_store_fpr64 |
Date: |
Tue, 2 May 2017 00:10:41 +0200 |
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 a8399239d1..23636eeb4c 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
- [Qemu-devel] [PATCH 00/14] target/sh4: misc fixes, cleanup and optimizations, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 05/14] target/sh4: fix BS_STOP exit, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 06/14] target/sh4: fix BS_EXCP exit, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 10/14] target/sh4: optimize gen_write_sr using extract op, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 09/14] target/sh4: optimize gen_store_fpr64,
Aurelien Jarno <=
- [Qemu-devel] [PATCH 02/14] target/sh4: get rid of DELAY_SLOT_CLEARME, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 12/14] target/sh4: implement tas.b using atomic helper, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 13/14] target/sh4: movua.l is an SH4-A only instruction, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 01/14] target/sh4: split ctx->flags into ctx->tbflags and ctx->envflags, Aurelien Jarno, 2017/05/01
- [Qemu-devel] [PATCH 14/14] target/sh4: trap unaligned accesses, Aurelien Jarno, 2017/05/01