diff mbox

[v2,07/11] target/ppc: use tcg ops for neg instruction

Message ID 1487755788-16415-8-git-send-email-nikunj@linux.vnet.ibm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Nikunj A. Dadhania Feb. 22, 2017, 9:29 a.m. UTC 
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 target/ppc/translate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Comments

Richard Henderson Feb. 22, 2017, 10:37 a.m. UTC | #1 
On 02/22/2017 08:29 PM, Nikunj A Dadhania wrote:
> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
> ---
>  target/ppc/translate.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Reviewed-by: Richard Henderson <rth@twiddle.net>


r~
diff mbox

Patch

diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 74185ba..eecdfe9 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -1483,7 +1483,10 @@  static inline void gen_op_arith_neg(DisasContext *ctx, bool compute_ov)
 
 static void gen_neg(DisasContext *ctx)
 {
-    gen_op_arith_neg(ctx, 0);
+    tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
+    if (unlikely(Rc(ctx->opcode))) {
+        gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
+    }
 }
 
 static void gen_nego(DisasContext *ctx)