Remove -fprefetch pragma and adjust build

Removed GCC pragma "-fprefetch-loop-arrays" from multiple source/header files to avoid the optimization (i2c/display.h, spi/display.h, lib-e131 e131bridge.cpp, lib-hal softwaretimers.cpp).

Updated copyright year in spi/display.h (2022-2026) and minor whitespace/formatting cleanups (include spacing, #endif comment style, and conditional formatting around LLRPDevice::Print).

Changed Rules.mk logic so ../lib-rdm/include is only added when NODE_RDMNET_LLRP_ONLY and RDM are both present in MAKE_FLAGS (ensures lib-rdm is only pulled in when RDM is requested).

Author: vanvught

lib-display/include/i2c/display.h

@@ -39,7 +39,6 @@
 #pragma GCC optimize("O3")
 #endif
 #pragma GCC optimize("no-tree-loop-distribute-patterns")
-#pragma GCC optimize("-fprefetch-loop-arrays")
 #endif
 #endif
 

lib-display/include/spi/display.h

@@ -2,7 +2,7 @@
  * @file display.h
  *
  */
-/* Copyright (C) 2022-2025 by Arjan van Vught mailto:info@gd32-dmx.org
+/* Copyright (C) 2022-2026 by Arjan van Vught mailto:info@gd32-dmx.org
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -39,7 +39,6 @@
 #pragma GCC optimize("O3")
 #endif
 #pragma GCC optimize("no-tree-loop-distribute-patterns")
-#pragma GCC optimize("-fprefetch-loop-arrays")
 #endif
 #endif
 
@@ -70,7 +69,7 @@ inline constexpr uint32_t CS_GPIO = SPI_LCD_CS_GPIO;
 inline constexpr uint32_t CS_GPIO = 0;
 #endif
 
- #include "firmware/debug/debug_debug.h"
+#include "firmware/debug/debug_debug.h"
 
 class Display : public LcdDriver
 {
@@ -356,4 +355,4 @@ class Display : public LcdDriver
 #endif
 #endif
 
-#endif  // SPI_DISPLAY_H_
+#endif // SPI_DISPLAY_H_

lib-e131/src/node/e131bridge.cpp

@@ -499,17 +499,16 @@ void E131Bridge::Print()
     {
         printf(" Synchronize is disabled\n");
     }
-	
-	#if defined (NODE_RDMNET_LLRP_ONLY)
-	LLRPDevice::Print();
-	#endif
+
+#if defined(NODE_RDMNET_LLRP_ONLY)
+    LLRPDevice::Print();
+#endif
 }
 
 #if defined(__GNUC__) && !defined(__clang__)
 #pragma GCC push_options
 #pragma GCC optimize("O2")
 #pragma GCC optimize("no-tree-loop-distribute-patterns")
-#pragma GCC optimize("-fprefetch-loop-arrays")
 #endif
 
 static bool IsValidRoot(const uint8_t* buffer)

lib-hal/superloop/softwaretimers.cpp

@@ -31,7 +31,6 @@
 #pragma GCC optimize("O3")
 #pragma GCC optimize("no-tree-loop-distribute-patterns")
 #pragma GCC optimize("-funroll-loops")
-#pragma GCC optimize("-fprefetch-loop-arrays")
 #endif
 #endif
 

lib-showfile/Rules.mk

@@ -35,10 +35,6 @@ ifneq ($(MAKE_FLAGS),)
 		ARTNET=1
 	endif
 
-	ifneq (,$(findstring NODE_RDMNET_LLRP_ONLY,$(MAKE_FLAGS)))
-		EXTRA_INCLUDES+=../lib-rdm/include
-	endif
-	
 	ifdef E131
 		EXTRA_INCLUDES+=../lib-e131/include
 		EXTRA_INCLUDES+=../lib-dmx/include
@@ -51,6 +47,12 @@ ifneq ($(MAKE_FLAGS),)
 			EXTRA_INCLUDES+=../lib-rdm/include ../lib-dmx/include
 		endif
 	endif
+	
+	ifneq (,$(findstring NODE_RDMNET_LLRP_ONLY,$(MAKE_FLAGS)))
+		ifneq (,$(findstring RDM,$(MAKE_FLAGS)))
+			EXTRA_INCLUDES+=../lib-rdm/include
+		endif
+	endif
 else
 	EXTRA_SRCDIR+=src/display
 	EXTRA_SRCDIR+=src/formats/ola