https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100349
Theodore Wang <tlwang at uwaterloo dot ca> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tlwang at uwaterloo dot ca
--- Comment #3 from Theodore Wang <tlwang at uwaterloo dot ca> ---
A possible duplicate:
$ /home/cnsun/usr/bin/gcc-trunk -v
Using built-in specs.
COLLECT_GCC=/home/cnsun/usr/bin/gcc-trunk
COLLECT_LTO_WRAPPER=/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/configure
--enable-languages=c,c++,lto --enable-checking-yes --enable-multiarch
--prefix=/scratch/software/gcc-trunk --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20210511 (experimental) [master revision
:61d4686bb:71d38ec80008afdbb9a059253407d80598b765c0] (GCC)
$ cat program3.c
int a;
void c() {
char b;
d:
for (;;) {
b = -16;
for (; b; b = ({
unsigned char e = b;
e + 1;
}))
for (;;) {
if (a)
break;
unsigned f = b;
goto d;
}
}
}
$ /home/cnsun/usr/bin/gcc-trunk -O2 -c program3.c
during GIMPLE pass: evrp
program3.c: In function ‘c’:
program3.c:18:1: internal compiler error: Segmentation fault
18 | }
| ^
0xef6d63 crash_signal
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/toplev.c:327
0x12630f3 bounds_of_var_in_loop(tree_node**, tree_node**, range_query*, loop*,
gimple*, tree_node*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/vr-values.c:1658
0x191d98d gimple_ranger::range_of_ssa_name_with_loop_info(irange&, tree_node*,
loop*, gphi*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:1229
0x191dd2b gimple_ranger::range_of_phi(irange&, gphi*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:568
0x191e15d gimple_ranger::calc_stmt(irange&, gimple*, tree_node*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:376
0x191e514 gimple_ranger::range_of_stmt(irange&, gimple*, tree_node*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:1077
0x19192a2 gimple_ranger::range_of_expr(irange&, tree_node*, gimple*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:960
0x120f8b4 range_query::value_of_expr(tree_node*, gimple*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/value-query.cc:86
0x192b125 hybrid_folder::value_of_expr(tree_node*, gimple*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-ssa-evrp.c:235
0x10ab78d substitute_and_fold_dom_walker::before_dom_children(basic_block_def*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/tree-ssa-propagate.c:776
0x18ed787 dom_walker::walk(basic_block_def*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/domwalk.c:309
0x10aad29 substitute_and_fold_engine::substitute_and_fold(basic_block_def*)
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/tree-ssa-propagate.c:987
0x192ad8e execute_early_vrp
/tmp/tmp.BriefQJ2R3-gcc-builder/gcc/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.
