[PATCH] cpu.h: add defines for clang
lvqcl <[email protected]>
| Newsgroups | gmane.comp.audio.compression.flac.devel |
|---|---|
| Message-ID | <op.yunadpoqcba0by@userme-pc> |
Currently cpu.h lacks FLAC__SSE_TARGET and FLAC__SSEnn_SUPPORTED macros for clang. I added them, but I cannot properly test them as I can't get compiled flac.exe under Windows (don't know how to setup clang under MSYS2). If somebody has working clang, please test this patch. Does it affect en/decoding speed? Or at least, dows it affect disassembly of functions such as FLAC__precompute_partition_info_sums_intrin_avx2()? _______________________________________________ flac-dev mailing list [email protected] http://lists.xiph.org/mailman/listinfo/flac-dev
clang_cpu_support.patch
(application/octet-stream, 1.8 KB)
diff --git a/src/libFLAC/include/private/cpu.h b/src/libFLAC/include/private/cpu.h
index 7c65180..623efc5 100644
--- a/src/libFLAC/include/private/cpu.h
+++ b/src/libFLAC/include/private/cpu.h
@@ -88,8 +88,25 @@
#define FLAC__AVX2_SUPPORTED 1
#define FLAC__FMA_SUPPORTED 1
#endif
-#elif defined __GNUC__
- #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* since GCC 4.9 -msse.. compiler options aren't necessary */
+#elif defined __GNUC__ || defined __clang__
+ #if defined __clang__ && __has_attribute(__target__) /* clang */
+ #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
+ #if __has_builtin(__builtin_ia32_maxps)
+ #define FLAC__SSE_SUPPORTED 1
+ #endif
+ #if __has_builtin(__builtin_ia32_pmuludq128)
+ #define FLAC__SSE2_SUPPORTED 1
+ #endif
+ #if __has_builtin(__builtin_ia32_pabsd128)
+ #define FLAC__SSSE3_SUPPORTED 1
+ #endif
+ #if __has_builtin(__builtin_ia32_pmuldq128)
+ #define FLAC__SSE4_1_SUPPORTED 1
+ #endif
+ #if __has_builtin(__builtin_ia32_pabsd256)
+ #define FLAC__AVX2_SUPPORTED 1
+ #endif
+ #elif !defined __clang__ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* GCC 4.9+ */
#define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
#define FLAC__SSE_SUPPORTED 1
#define FLAC__SSE2_SUPPORTED 1
@@ -100,7 +117,7 @@
#define FLAC__AVX2_SUPPORTED 1
#define FLAC__FMA_SUPPORTED 1
#endif
- #else /* for GCC older than 4.9 */
+ #else /* older GCC and clang */
#define FLAC__SSE_TARGET(x)
#ifdef __SSE__
#define FLAC__SSE_SUPPORTED 1
@@ -123,7 +140,7 @@
#ifdef __FMA__
#define FLAC__FMA_SUPPORTED 1
#endif
- #endif /* GCC version */
+ #endif
#endif /* compiler version */
#endif /* intrinsics support */