Split out compiler specific helper macros into a new CompilerSpecific.h header file...

[pub/USBasp.git] / LUFA / Common / Common.h

diff --git a/LUFA/Common/Common.h b/LUFA/Common/Common.h
index 02fc98f..87fc08c 100644 (file)
--- a/LUFA/Common/Common.h
+++ b/LUFA/Common/Common.h
@@ -71,6 +71,7 @@
                        #include "LUFAConfig.h"
                #endif
 
+               #include "CompilerSpecific.h"
                #include "Architectures.h"
                #include "Attributes.h"
                #include "BoardTypes.h"
@@ -228,31 +229,6 @@
                                        #define pgm_read_ptr(Address)        (void*)pgm_read_word(Address)
                                #endif
                        #endif
-                       
-                       /** Forces GCC to use pointer indirection (via the device's pointer register pairs) when accessing the given
-                        *  struct pointer. In some cases GCC will emit non-optimal assembly code when accessing a structure through
-                        *  a pointer, resulting in a larger binary. When this macro is used on a (non \c const) structure pointer before
-                        *  use, it will force GCC to use pointer indirection on the elements rather than direct store and load
-                        *  instructions.
-                        *
-                        *  \param[in, out] StructPtr  Pointer to a structure which is to be forced into indirect access mode.
-                        */
-                       #define GCC_FORCE_POINTER_ACCESS(StructPtr) __asm__ __volatile__("" : "=b" (StructPtr) : "0" (StructPtr))
-
-                       /** Forces GCC to create a memory barrier, ensuring that memory accesses are not reordered past the barrier point.
-                        *  This can be used before ordering-critical operations, to ensure that the compiler does not re-order the resulting
-                        *  assembly output in an unexpected manner on sections of code that are ordering-specific.
-                        */
-                       #define GCC_MEMORY_BARRIER()                __asm__ __volatile__("" ::: "memory");
-                       
-                       /** Evaluates to boolean true if the specified value can be determined at compile time to be a constant value
-                        *  when compiling under GCC.
-                        *
-                        *  \param[in] x  Value to check compile time constantness of.
-                        *
-                        *  \return Boolean true if the given value is known to be a compile time constant.
-                        */
-                       #define GCC_IS_COMPILE_CONST(x)             __builtin_constant_p(x)
 
                        #if !defined(ISR) || defined(__DOXYGEN__)
                                /** Macro for the definition of interrupt service routines, so that the compiler can insert the required