Commit eb39e205886c4ac66db221e76e2896ee31590768
2021-11-25T17:00:50
SDL_endian.h: remove aarch64 asm. The asm has been reported broken in at least optimized Apple M1 builds; and besides, the compiler builtins have precedence over the asm anyway. Closes https://github.com/libsdl-org/SDL/issues/3943
diff --git a/include/SDL_endian.h b/include/SDL_endian.h
index ac6af39..d40e04f 100644
--- a/include/SDL_endian.h
+++ b/include/SDL_endian.h
@@ -135,13 +135,6 @@ SDL_Swap16(Uint16 x)
__asm__("rlwimi %0,%2,8,16,23": "=&r"(result):"0"(x >> 8), "r"(x));
return (Uint16)result;
}
-#elif defined(__aarch64__)
-SDL_FORCE_INLINE Uint16
-SDL_Swap16(Uint16 x)
-{
- __asm__("rev16 %w1, %w0" : "=r"(x) : "r"(x));
- return x;
-}
#elif (defined(__m68k__) && !defined(__mcoldfire__))
SDL_FORCE_INLINE Uint16
SDL_Swap16(Uint16 x)
@@ -193,13 +186,6 @@ SDL_Swap32(Uint32 x)
__asm__("rlwimi %0,%2,24,0,7" : "=&r"(result): "0" (result), "r"(x));
return result;
}
-#elif defined(__aarch64__)
-SDL_FORCE_INLINE Uint32
-SDL_Swap32(Uint32 x)
-{
- __asm__("rev %w1, %w0": "=r"(x):"r"(x));
- return x;
-}
#elif (defined(__m68k__) && !defined(__mcoldfire__))
SDL_FORCE_INLINE Uint32
SDL_Swap32(Uint32 x)