kern: tweak optimization settings for hot paths

libraries/libmesosphere/source/arch/arm64/svc/kern_svc_tables.cpp

@@ -59,6 +59,7 @@ namespace ams::kern::svc {
 
         /* Set omit-frame-pointer to prevent GCC from emitting MOV X29, SP instructions. */
         #pragma GCC push_options
+        #pragma GCC optimize ("-O2")
         #pragma GCC optimize ("omit-frame-pointer")
 
             AMS_SVC_FOREACH_KERN_DEFINITION(DECLARE_SVC_STRUCT, _)

libraries/libmesosphere/source/kern_k_page_table_base.cpp

@@ -3055,7 +3055,7 @@ namespace ams::kern {
     }
 
     #pragma GCC push_options
-    #pragma GCC optimize ("-O2")
+    #pragma GCC optimize ("-O3")
 
     Result KPageTableBase::SetupForIpcClient(PageLinkedList *page_list, size_t *out_blocks_needed, KProcessAddress address, size_t size, KMemoryPermission test_perm, KMemoryState dst_state) {
         /* Validate pre-conditions. */

libraries/libmesosphere/source/kern_k_server_session.cpp

@@ -18,7 +18,7 @@
 namespace ams::kern {
 
     #pragma GCC push_options
-    #pragma GCC optimize ("-O2")
+    #pragma GCC optimize ("-O3")
 
     namespace ipc {
 

libraries/libmesosphere/source/svc/kern_svc_ipc.cpp

@@ -18,7 +18,7 @@
 namespace ams::kern::svc {
 
     #pragma GCC push_options
-    #pragma GCC optimize ("-O2")
+    #pragma GCC optimize ("-O3")
 
     /* =============================    Common    ============================= */