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hsa: Fix bootstrap with older host compilers

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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
This commit is contained in:
Segher Boessenkool 2016-04-18 10:57:01 +02:00 committed by Segher Boessenkool
parent bd5c7330b5
commit 939264d3a3
2 changed files with 6 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
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

2
gcc/hsa-brig.c
View File

@ -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__