From 50d8016e86485017aee0031c5752c70b8fd3f658 Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Fri, 26 Mar 2021 11:39:11 +0100
Subject: [DYNAREC] Added a small optim on 0F 57 opcode

---
 src/dynarec/dynarec_arm64_0f.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/dynarec/dynarec_arm64_0f.c b/src/dynarec/dynarec_arm64_0f.c
index d749abdb..6a9a8dff 100755
--- a/src/dynarec/dynarec_arm64_0f.c
+++ b/src/dynarec/dynarec_arm64_0f.c
@@ -289,9 +289,16 @@ uintptr_t dynarec64_0F(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin
         case 0x57:
             INST_NAME("XORPS Gx, Ex");
             nextop = F8;
-            GETEX(q0, 0);
-            GETGX(v0);
-            VEORQ(v0, v0, q0);
+            GETG;
+            if(MODREG && ((nextop&7)+(rex.b<<3)==gd)) {
+                // special case for XORPS Gx, Gx
+                q0 = sse_get_reg_empty(dyn, ninst, x1, gd);
+                VEORQ(q0, q0, q0);
+            } else {
+                q0 = sse_get_reg(dyn, ninst, x1, gd);
+                GETEX(q1, 0);
+                VEORQ(q0, q0, q1);
+            }
             break;
         case 0x58:
             INST_NAME("ADDPS Gx, Ex");
-- 
cgit 1.4.1