https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113693
Bug ID: 113693
Summary: ICE: in check_loop_closed_ssa_def, at
tree-ssa-loop-manip.cc:647 with _BitInt() at -O2
-fdbg-cnt=vect_loop:1
Product: gcc
Version: 14.0
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
Target: x86_64-pc-linux-gnu
Created attachment 57274
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57274&action=edit
reduced testcase (from gcc.dg/pr68766.c)
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -fdbg-cnt=vect_loop:1 testcase.c
***dbgcnt: lower limit 1 reached for vect_loop.***
***dbgcnt: upper limit 1 reached for vect_loop.***
during GIMPLE pass: vect
testcase.c: In function 'fn1':
testcase.c:4:1: internal compiler error: in check_loop_closed_ssa_def, at
tree-ssa-loop-manip.cc:647
4 | fn1(void)
| ^~~
0x865e0d check_loop_closed_ssa_def
/repo/gcc-trunk/gcc/tree-ssa-loop-manip.cc:647
0x1695c07 check_loop_closed_ssa_bb
/repo/gcc-trunk/gcc/tree-ssa-loop-manip.cc:672
0x1695fa6 verify_loop_closed_ssa(bool, loop*)
/repo/gcc-trunk/gcc/tree-ssa-loop-manip.cc:697
0x1695fa6 verify_loop_closed_ssa(bool, loop*)
/repo/gcc-trunk/gcc/tree-ssa-loop-manip.cc:681
0x13ca929 execute_function_todo
/repo/gcc-trunk/gcc/passes.cc:2106
0x13cad2e execute_todo
/repo/gcc-trunk/gcc/passes.cc:2142
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-8665-20240131161256-g3fed1609f61-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/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
--disable-bootstrap --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-r14-8665-20240131161256-g3fed1609f61-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240131 (experimental) (GCC)
