compiler.h: remove _aligned_attribute

[wimlib] / include / wimlib / compiler.h

diff --git a/include/wimlib/compiler.h b/include/wimlib/compiler.h
index 283152bd7aae82ebd1b112a530aa90ad0cfc1080..2013cd12b100c2c49e4bda5efb77647bb3222af4 100644 (file)
--- a/include/wimlib/compiler.h
+++ b/include/wimlib/compiler.h
@@ -49,14 +49,6 @@
 #  define __has_builtin(builtin)       0
 #endif
 
-/* Declare that the annotated function should be exported from the shared
- * library (or DLL).  */
-#ifdef _WIN32
-#  define WIMLIBAPI __declspec(dllexport)
-#else
-#  define WIMLIBAPI __attribute__((visibility("default")))
-#endif
-
 /* Declare that the annotated function should always be inlined.  This might be
  * desirable in highly tuned code, e.g. compression codecs.  */
 #define forceinline            inline __attribute__((always_inline))
@@ -85,10 +77,6 @@
  * struct itself may be misaligned.  */
 #define _packed_attribute      __attribute__((packed))
 
-/* Declare that the annotated variable, or variables of the annotated type, are
- * to be aligned on n-byte boundaries.  */
-#define _aligned_attribute(n)  __attribute__((aligned(n)))
-
 /* Declare that pointers to the annotated type may alias other pointers.  */
 #define _may_alias_attribute   __attribute__((may_alias))
 
@@ -131,15 +119,13 @@
 
 /* UNALIGNED_ACCESS_IS_FAST should be defined to 1 if unaligned memory accesses
  * can be performed efficiently on the target platform.  */
-#if defined(__x86_64__) || defined(__i386__) || defined(__ARM_FEATURE_UNALIGNED)
+#if defined(__x86_64__) || defined(__i386__) || \
+       defined(__ARM_FEATURE_UNALIGNED) || defined(__powerpc64__)
 #  define UNALIGNED_ACCESS_IS_FAST 1
 #else
 #  define UNALIGNED_ACCESS_IS_FAST 0
 #endif
 
-/* Get the type of the specified expression.  */
-#define typeof     __typeof__
-
 /* Get the minimum of two variables, without multiple evaluation.  */
 #undef min
 #define min(a, b)  ({ typeof(a) _a = (a); typeof(b) _b = (b); \
@@ -160,27 +146,6 @@
 #endif
 #define SWAP(a, b)     swap((a), (b))
 
-/* (Optional) Efficiently swap the bytes of a 16-bit integer.  */
-#if GCC_PREREQ(4, 8) || __has_builtin(__builtin_bswap16)
-#  define compiler_bswap16 __builtin_bswap16
-#endif
-
-/* (Optional) Efficiently swap the bytes of a 32-bit integer.  */
-#if GCC_PREREQ(4, 3) || __has_builtin(__builtin_bswap32)
-#  define compiler_bswap32 __builtin_bswap32
-#endif
-
-/* (Optional) Efficiently swap the bytes of a 64-bit integer.  */
-#if GCC_PREREQ(4, 3) || __has_builtin(__builtin_bswap64)
-#  define compiler_bswap64 __builtin_bswap64
-#endif
-
-/* (Optional) Find Last Set bit and Find First Set bit macros.  */
-#define compiler_bsr32(n)      (31 - __builtin_clz(n))
-#define compiler_bsr64(n)      (63 - __builtin_clzll(n))
-#define compiler_bsf32(n)      __builtin_ctz(n)
-#define compiler_bsf64(n)      __builtin_ctzll(n)
-
 /* Optional definitions for checking with 'sparse'.  */
 #ifdef __CHECKER__
 #  define _bitwise_attr        __attribute__((bitwise))