https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99296
Bug ID: 99296
Summary: ICE:in irange_set_anti_range, at value-range.cc:205
with "-Os -fno-toplevel-reorder -fno-tree-bit-ccp"
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: suochenyao at 163 dot com
Target Milestone: ---
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OS and Platform:
CentOS Linux release 7.8.2003 (Core), x86_64 GNU/Linux
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Program:
struct {
signed a : 1;
} b, c;
void d() { b.a |= c.a |= 0 != 2; }
int main() {}
*******************************************************************************
gcc version:
$ gcc --version
gcc (GCC) 11.0.1 20210226 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*******************************************************************************
Command Lines:
$ gcc -Wall -Wextra -fno-strict-aliasing -fwrapv -Os -fno-toplevel-reorder
-fno-tree-bit-ccp a.c
during GIMPLE pass: evrp
a.c: In function ‘d’:
a.c:5:1: internal compiler error: in irange_set_anti_range, at
value-range.cc:205
5 | int main() {}
| ^~~
0x7714e6 irange::irange_set_anti_range(tree_node*, tree_node*)
../../gcc/value-range.cc:205
0x18ff2ea irange::set_nonzero(tree_node*)
../../gcc/value-range.h:557
0x18ff2ea wi_optimize_and_or
../../gcc/range-op.cc:2204
0x1900620 operator_bitwise_or::wi_fold(irange&, tree_node*,
generic_wide_int<wide_int_storage> const&, generic_wide_int<wide_int_storage>
const&, generic_wide_int<wide_int_storage> const&,
generic_wide_int<wide_int_storage> const&) const
../../gcc/range-op.cc:2510
0x18f6897 range_operator::fold_range(irange&, tree_node*, irange const&, irange
const&) const
../../gcc/range-op.cc:153
0x17ff999 gimple_range_fold(irange&, gimple const*, irange const&, irange
const&)
../../gcc/gimple-range.cc:220
0x1803501 gimple_ranger::range_of_range_op(irange&, gimple*)
../../gcc/gimple-range.cc:444
0x18035c8 gimple_ranger::calc_stmt(irange&, gimple*, tree_node*)
../../gcc/gimple-range.cc:374
0x180398a gimple_ranger::range_of_stmt(irange&, gimple*, tree_node*)
../../gcc/gimple-range.cc:1068
0x17ff828 gimple_ranger::range_of_expr(irange&, tree_node*, gimple*)
../../gcc/gimple-range.cc:960
0x10fae61 range_query::value_of_expr(tree_node*, gimple*)
../../gcc/value-query.cc:86
0x180de81 hybrid_folder::value_of_expr(tree_node*, gimple*)
../../gcc/gimple-ssa-evrp.c:235
0xfa9966 substitute_and_fold_dom_walker::before_dom_children(basic_block_def*)
../../gcc/tree-ssa-propagate.c:1112
0x17d6197 dom_walker::walk(basic_block_def*)
../../gcc/domwalk.c:309
0xfa8b95 substitute_and_fold_engine::substitute_and_fold(basic_block_def*)
../../gcc/tree-ssa-propagate.c:1283
0x180daf6 execute_early_vrp
../../gcc/gimple-ssa-evrp.c:349
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
