https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96818
Bug ID: 96818
Summary: [11 Regression] ICE: in decompose, at wide-int.h:984
at -O
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Created attachment 49139
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49139&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-g++ -O testcase.C
during GIMPLE pass: dom
testcase.C: In function 'void p()':
testcase.C:22:1: internal compiler error: in decompose, at wide-int.h:984
22 | p ()
| ^
0x8343ce wi::int_traits<generic_wide_int<wide_int_ref_storage<false, false> >
>::decompose(long*, unsigned int, generic_wide_int<wide_int_ref_storage<false,
false> > const&)
/repo/gcc-trunk/gcc/wide-int.h:984
0x1508d8d wi::int_traits<generic_wide_int<wide_int_ref_storage<false, false> >
>::decompose(long*, unsigned int, generic_wide_int<wide_int_ref_storage<false,
false> > const&)
/repo/gcc-trunk/gcc/wide-int.h:1931
0x1508d8d wide_int_ref_storage<false,
false>::wide_int_ref_storage<generic_wide_int<wide_int_ref_storage<false,
false> > >(generic_wide_int<wide_int_ref_storage<false, false> > const&,
unsigned int)
/repo/gcc-trunk/gcc/wide-int.h:1034
0x1508d8d generic_wide_int<wide_int_ref_storage<false, false>
>::generic_wide_int<generic_wide_int<wide_int_ref_storage<false, false> >
>(generic_wide_int<wide_int_ref_storage<false, false> > const&, unsigned int)
/repo/gcc-trunk/gcc/wide-int.h:790
0x1508d8d bool wi::ltu_p<generic_wide_int<wide_int_ref_storage<false, false> >,
generic_wide_int<wide_int_ref_storage<false, false> >
>(generic_wide_int<wide_int_ref_storage<false, false> > const&,
generic_wide_int<wide_int_ref_storage<false, false> > const&)
/repo/gcc-trunk/gcc/wide-int.h:1935
0x15071d4 bool wi::lt_p<generic_wide_int<wide_int_ref_storage<false, false> >,
generic_wide_int<wide_int_ref_storage<false, false> >
>(generic_wide_int<wide_int_ref_storage<false, false> > const&,
generic_wide_int<wide_int_ref_storage<false, false> > const&, signop)
/repo/gcc-trunk/gcc/wide-int.h:1961
0x15071d4 irange::irange_intersect(irange const&)
/repo/gcc-trunk/gcc/value-range.cc:1701
0x1507441 irange::intersect(irange const*)
/repo/gcc-trunk/gcc/value-range.cc:1539
0x14c35e1 find_case_label_range(gswitch*, irange const*)
/repo/gcc-trunk/gcc/tree-vrp.c:3853
0x1424cd3 simplify_control_stmt_condition
/repo/gcc-trunk/gcc/tree-ssa-threadedge.c:554
0x1425a30 thread_through_normal_block
/repo/gcc-trunk/gcc/tree-ssa-threadedge.c:1101
0x142730c thread_through_normal_block
/repo/gcc-trunk/gcc/vec.h:1010
0x142730c thread_across_edge
/repo/gcc-trunk/gcc/tree-ssa-threadedge.c:1372
0x133f745 dom_opt_dom_walker::after_dom_children(basic_block_def*)
/repo/gcc-trunk/gcc/tree-ssa-dom.c:1504
0x1c498c7 dom_walker::walk(basic_block_def*)
/repo/gcc-trunk/gcc/domwalk.c:352
0x134162c execute
/repo/gcc-trunk/gcc/tree-ssa-dom.c:724
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.
$ x86_64-pc-linux-gnu-g++ -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-g++
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r11-2899-20200827080734-g989bc4ca2f2-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r11-2899-20200827080734-g989bc4ca2f2-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.0.0 20200827 (experimental) (GCC)
