aarch64: Add NEWS entry about libmvec for 2.39

Auto-vectorizing scalar calls is now supported. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2 years ago · 7100d9ae21
1 changed files with 7 additions and 0 deletions
--- a/7
+++ b/7
@ -55,6 +55,13 @@ Major new features:
  unsigned char, unsigned short, unsigned int, unsigned long int and
  unsigned long long int, and a type-generic macro.

+* On AArch64 new symbols were added to libmvec and now math.h has
+  annotations to allow GCC 9 or newer to auto-vectorize calls to the
+  following scalar math functions when -ffast-math is specified:
+  acos, acosf, asin, asinf, atan, atanf, atan2, atan2f, cos, cosf,
+  exp, expf, exp10, exp10f, exp2, exp2f, expm1, expm1f, log, logf,
+  log10, log10f, log1p, log1pf, log2, log2f, sin, sinf, tan, tanf.
+
 Deprecated and removed features, and other changes affecting compatibility:

 * The ldconfig program now skips file names containing ';' or ending in