[ARM64_DYNAREC] Improved 0F AE opcodes

Author: ptitSeb

src/dynarec/arm64/dynarec_arm64_0f.c

@@ -1687,42 +1687,40 @@ uintptr_t dynarec64_0F(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin
 
         case 0xAE:
             nextop = F8;
-            if((nextop&0xF8)==0xE8) {
-                INST_NAME("LFENCE");
-                SMDMB();
-            } else
-            if((nextop&0xF8)==0xF0) {
-                INST_NAME("MFENCE");
-                SMDMB();
-            } else
-            if((nextop&0xF8)==0xF8) {
-                INST_NAME("SFENCE");
-                SMDMB();
-            } else {
+            if(MODREG)
+                switch (nextop) {
+                    case 0xE8:
+                        INST_NAME("LFENCE");
+                        SMDMB();
+                        break;
+                    case 0xF0:
+                        INST_NAME("MFENCE");
+                        SMDMB();
+                        break;
+                    case 0xF8:
+                        INST_NAME("SFENCE");
+                        SMDMB();
+                        break;
+                    default:
+                        DEFAULT;
+                }
+            else
                 switch((nextop>>3)&7) {
                     case 0:
                         INST_NAME("FXSAVE Ed");
                         MESSAGE(LOG_DUMP, "Need Optimization\n");
                         fpu_purgecache(dyn, ninst, 0, x1, x2, x3);
-                        if(MODREG) {
-                            DEFAULT;
-                        } else {
-                            addr = geted(dyn, addr, ninst, nextop, &ed, x1, &fixedaddress, NULL, 0, 0, rex, NULL, 0, 0);
-                            if(ed!=x1) {MOVx_REG(x1, ed);}
-                            CALL(rex.w?((void*)fpu_fxsave64):((void*)fpu_fxsave32), -1);
-                        }
+                        addr = geted(dyn, addr, ninst, nextop, &ed, x1, &fixedaddress, NULL, 0, 0, rex, NULL, 0, 0);
+                        if(ed!=x1) {MOVx_REG(x1, ed);}
+                        CALL(rex.w?((void*)fpu_fxsave64):((void*)fpu_fxsave32), -1);
                         break;
                     case 1:
                         INST_NAME("FXRSTOR Ed");
                         MESSAGE(LOG_DUMP, "Need Optimization\n");
                         fpu_purgecache(dyn, ninst, 0, x1, x2, x3);
-                        if(MODREG) {
-                            DEFAULT;
-                        } else {
-                            addr = geted(dyn, addr, ninst, nextop, &ed, x1, &fixedaddress, NULL, 0, 0, rex, NULL, 0, 0);
-                            if(ed!=x1) {MOVx_REG(x1, ed);}
-                            CALL(rex.w?((void*)fpu_fxrstor64):((void*)fpu_fxrstor32), -1);
-                        }
+                        addr = geted(dyn, addr, ninst, nextop, &ed, x1, &fixedaddress, NULL, 0, 0, rex, NULL, 0, 0);
+                        if(ed!=x1) {MOVx_REG(x1, ed);}
+                        CALL(rex.w?((void*)fpu_fxrstor64):((void*)fpu_fxrstor32), -1);
                         break;
                     case 2:
                         INST_NAME("LDMXCSR Md");
@@ -1755,7 +1753,6 @@ uintptr_t dynarec64_0F(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin
                     default:
                         DEFAULT;
                 }
-            }
             break;
         case 0xAF:
             INST_NAME("IMUL Gd, Ed");