On Sun, 22 Jul 2018, Gerald Pfeifer wrote:
> With clang version 3.4 (system compiler on FreeBSD 10.x) this is
> even a hard error and GCC failed to build. So thanks for fixing
> this, Martin!
Unfortunately it appears there was another bootstrap failure hidden
behind that one:
In file included from /scratch/tmp/gerald/GCC-HEAD/gcc/system.h:691,
from /scratch/tmp/gerald/GCC-HEAD/gcc/tree-vect-slp.c:23:
/scratch/tmp/gerald/GCC-HEAD/gcc/tree-vect-slp.c: In function
‘_slp_tree* vect_build_slp_tree_2(vec_info*, vec<gimple*>, unsigned int,
poly_uint64*, vec<_slp_tree*>*, bool*, unsigned int*, unsigned int*,
unsigned int)’:
/scratch/tmp/gerald/GCC-HEAD/gcc/../include/libiberty.h:722:36: error: ‘alloca’
bound is unknown [-Werror=alloca-larger-than=]
# define alloca(x) __builtin_alloca(x)
~~~~~~~~~~~~~~~~^~~
/scratch/tmp/gerald/GCC-HEAD/gcc/../include/libiberty.h:356:33: note: in
expansion of macro ‘alloca’
#define XALLOCAVEC(T, N) ((T *) alloca (sizeof (T) * (N)))
^~~~~~
/scratch/tmp/gerald/GCC-HEAD/gcc/tree-vect-slp.c:1437:16: note: in expansion of
macro ‘XALLOCAVEC’
bool *tem = XALLOCAVEC (bool, group_size);
^~~~~~~~~~
cc1plus: all warnings being treated as errors
gmake[3]: *** [Makefile:1112: tree-vect-slp.o] Error 1
gmake[3]: Leaving directory '/scratch/tmp/gerald/OBJ-0722-0939/gcc'
gmake[2]: *** [Makefile:4644: all-stage2-gcc] Error 2
This is on FreeBSD 10.4 which features clang 3.4.1 as system compiler;
FreeBSD 11.2 with clang 6.0.0 does not trigger that.
Gerald
