hsa: Fix bootstrap with older host compilers

We didn't have __builtin_swap16 on all targets before GCC 4.8; hsa-brig tries to use it if the host GCC is 4.6 or up though, breaking bootstrap. This trivial patch fixes it. Noticed on gcc22. * has-brig.c (lendian16): Don't try to use __builtin_bswap16 unless compiling with at least GCC-4.8. From-SVN: r235096

hsa: Fix bootstrap with older host compilers
We didn't have __builtin_swap16 on all targets before GCC 4.8; hsa-brig tries to use it if the host GCC is 4.6 or up though, breaking bootstrap. This trivial patch fixes it. Noticed on gcc22. * has-brig.c (lendian16): Don't try to use __builtin_bswap16 unless compiling with at least GCC-4.8. From-SVN: r235096
939264d3 · Segher Boessenkool · Segher Boessenkool · bd5c7330 · 939264d3 · 939264d3
Commit 939264d3 authored Apr 18, 2016 by Segher Boessenkool Committed by Segher Boessenkool Apr 18, 2016
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2016-04-18  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* has-brig.c (lendian16): Don't try to use __builtin_bswap16
+	unless compiling with at least GCC-4.8.
+
 2016-04-17  Jan Hubicka  <jh@suse.cz>

 	PR bootstrap/70706

--- a/gcc/hsa-brig.c
+++ b/gcc/hsa-brig.c
@@ -51,7 +51,7 @@ along with GCC; see the file COPYING3.  If not see
 static uint16_t
 lendian16 (uint16_t val)
 {
-#if GCC_VERSION >= 4006
+#if GCC_VERSION >= 4008
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  return val;
 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__