svn commit: r350778 - head/sys/contrib/zstd/lib/common

[Warner Losh]

Author: imp
Date: Thu Aug  8 20:09:36 2019
New Revision: 350778
URL: https://svnweb.freebsd.org/changeset/base/350778

Log:
  Stopgap fix for gcc platforms.
  
  Our in-tree gcc doesn't have a no-tree-vectorize optimization knob, so we get a
  warning that it's unused. This causes the build to fail on all our gcc platforms.
  Add a quick version check as a stop-gap measure to get CI building again.

Modified:
  head/sys/contrib/zstd/lib/common/compiler.h

Modified: head/sys/contrib/zstd/lib/common/compiler.h
==============================================================================
--- head/sys/contrib/zstd/lib/common/compiler.h	Thu Aug  8 20:07:38 2019	(r350777)
+++ head/sys/contrib/zstd/lib/common/compiler.h	Thu Aug  8 20:09:36 2019	(r350778)
@@ -128,7 +128,7 @@
 }
 
 /* vectorization */
-#if !defined(__clang__) && defined(__GNUC__)
+#if !defined(__clang__) && defined(__GNUC__) && __GNUC__ > 5
 #  define DONT_VECTORIZE __attribute__((optimize("no-tree-vectorize")))
 #else
 #  define DONT_VECTORIZE