https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106449
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Tobias Burnus from comment #1) > My impression is that the ICE is due to having > fold_build2_loc (0, PLUS_EXPR, type, op0, op1) > with > (gdb) p debug_tree(type) > <pointer_type 0x7ffff6feda80 [...] > (gdb) p debug_tree(op0) > <integer_cst 0x7ffff7128b70 type <pointer_type 0x7ffff6feda80> constant 256> > (gdb) p debug_tree(op1) > <var_decl 0x7ffff7148480 p.0 > type <pointer_type 0x7ffff6feda80 [...] > > Namely: variable PLUS_EXPR integer_cst - instead of a POINTER_PLUS_EXPR. > > > Patch would be something like the following – except that there are several > additional PLUS_EXPR in that function and that fold_build_pointer_plus > assumes that the first argument is the pointer and the second the offset, > which is converted via convert_to_ptrofftype_loc ... I think the above also shows that op0 is the offset and op1 the base and thus the arguments should be reversed here. > --- a/gcc/omp-expand.cc > +++ b/gcc/omp-expand.cc > @@ -6882 +6882,4 @@ expand_omp_simd (struct omp_region *region, struct > omp_for_data *fd) > - t = fold_build2 (PLUS_EXPR, TREE_TYPE (t), t, t2); > + if (POINTER_TYPE_P (TREE_TYPE (t))) > + t = fold_build_pointer_plus (t, t2); > + else > + t = fold_build2 (PLUS_EXPR, TREE_TYPE (t), t, t2);
