https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106360
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Apparently fixed as the revision was reverted (r13-1780-g9a52d6871a268a)
Note there's a x86_64-linux-gnu test-case:
$ cat gegl.i
int gegl_downscale_2x2_u8_dst_data_x;
char *data;
int babl_format_get_bytes_per_pixel();
void
gegl_downscale_2x2_u8_dst_data() {
int bpp = babl_format_get_bytes_per_pixel();
switch (bpp)
case 4: {
char *src, *dst = gegl_downscale_2x2_u8_dst_data;
for (; gegl_downscale_2x2_u8_dst_data_x;
gegl_downscale_2x2_u8_dst_data_x++) {
dst[0] = (src[0] + (unsigned)src[0]) / 4;
dst[1] = (src[1] + (unsigned)src[1]) / 4;
dst[2] = (src[2] + (unsigned)src[2]) / 4;
dst[3] = (src[3] + (unsigned)src[3]) / 4;
dst += bpp;
src += bpp * 2;
}
}
}
$ gcc gegl.i -c -O2 -ftree-vectorize -w
during GIMPLE pass: forwprop
gegl.i: In function ‘gegl_downscale_2x2_u8_dst_data’:
gegl.i:7:1: internal compiler error: in fold_vec_perm, at fold-const.cc:10546
7 | gegl_downscale_2x2_u8_dst_data() {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x7027e4 fold_vec_perm(tree_node*, tree_node*, tree_node*, vec_perm_indices
const&)
/home/marxin/Programming/gcc/gcc/fold-const.cc:10546
0x16da940 generic_simplify_VEC_PERM_EXPR
/dev/shm/objdir/gcc/generic-match.cc:98764
0xbd5ce7 fold_ternary_loc(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*, tree_node*)
/home/marxin/Programming/gcc/gcc/fold-const.cc:12844
0x10a75c3 simplify_permutation
/home/marxin/Programming/gcc/gcc/tree-ssa-forwprop.cc:2665
0x10aae40 execute
/home/marxin/Programming/gcc/gcc/tree-ssa-forwprop.cc:3748
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
