https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71179
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|target |tree-optimization
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Confirmed as a tree-optimization problem.
(gdb) b internal_error
Breakpoint 1 at 0x192bbd1: file ../../git/gcc/gcc/diagnostic.c, line 1254.
(gdb) r
Starting program: /home/uros/gcc-build/prev-gcc/cc1 -funsafe-math-optimizations
-O2 -msse4.1 -quiet bug285.c
warning: no loadable sections found in added symbol-file system-supplied DSO at
0x2aaaaaaab000
Breakpoint 1, internal_error (gmsgid=0x20c9c85 "in %s, at %s:%d") at
../../git/gcc/gcc/diagnostic.c:1254
1254 rich_location richloc (line_table, input_location);
(gdb) bt
#0 internal_error (gmsgid=0x20c9c85 "in %s, at %s:%d") at
../../git/gcc/gcc/diagnostic.c:1254
#1 0x000000000192bca9 in fancy_abort (file=0x1a23a30
"../../git/gcc/gcc/fold-const.c", line=2360,
function=0x1a27720 <fold_convert_loc(unsigned int, tree_node*,
tree_node*)::__FUNCTION__> "fold_convert_loc")
at ../../git/gcc/gcc/diagnostic.c:1327
#2 0x00000000009fb2c0 in fold_convert_loc (loc=0, type=0x2aaab02c6e70,
arg=0x2aaaae9de318) at ../../git/gcc/gcc/fold-const.c:2360
#3 0x0000000000fad13c in transform_add_to_multiply (stmt=0x2aaaaed0e840,
ops=0x7fffffffc890) at ../../git/gcc/gcc/tree-ssa-reassoc.c:1816
#4 0x0000000000fb7ade in reassociate_bb (bb=0x2aaaae9cbbc8) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5189
#5 0x0000000000fb7f6d in reassociate_bb (bb=0x2aaaae9cbd68) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5278
#6 0x0000000000fb7f6d in reassociate_bb (bb=0x2aaaae9cbe38) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5278
#7 0x0000000000fb7f6d in reassociate_bb (bb=0x2aaaae9cbf08) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5278
#8 0x0000000000fb7f6d in reassociate_bb (bb=0x2aaab0402000) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5278
#9 0x0000000000fb7f6d in reassociate_bb (bb=0x2aaab04020d0) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5278
#10 0x0000000000fb7f6d in reassociate_bb (bb=0x2aaab04021a0) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5278
#11 0x0000000000fb7f6d in reassociate_bb (bb=0x2aaaae9cb410) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5278
#12 0x0000000000fb7fdb in do_reassoc () at
../../git/gcc/gcc/tree-ssa-reassoc.c:5392
#13 0x0000000000fb8820 in execute_reassoc (insert_powi_p=true) at
../../git/gcc/gcc/tree-ssa-reassoc.c:5479
(gdb) f 2
#2 0x00000000009fb2c0 in fold_convert_loc (loc=0, type=0x2aaab02c6e70,
arg=0x2aaaae9de318) at ../../git/gcc/gcc/fold-const.c:2360
2360 gcc_assert (tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE
(orig)));
(gdb) list
2355 }
2356
2357 case VECTOR_TYPE:
2358 if (integer_zerop (arg))
2359 return build_zero_vector (type);
2360 gcc_assert (tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE
(orig)));
2361 gcc_assert (INTEGRAL_TYPE_P (orig) || POINTER_TYPE_P (orig)
2362 || TREE_CODE (orig) == VECTOR_TYPE);
2363 return fold_build1_loc (loc, VIEW_CONVERT_EXPR, type, arg);
