https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121074
Bug ID: 121074
Summary: [16 Regression] ICE: in gcov_open, at gcov-io.cc:128
with -ftest-coverage -fauto-profile
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: gcov-profile
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
Compiler output:
$ echo '' | x86_64-pc-linux-gnu-gcc -ftest-coverage -fauto-profile -xc -
during IPA pass: afdo_offline
<stdin>:1: internal compiler error: in gcov_open, at gcov-io.cc:128
0x2daf0bf internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:517
0xe6298d fancy_abort(char const*, int, char const*)
/repo/gcc-trunk/gcc/diagnostic.cc:1818
0x7aa611 gcov_open(char const*, int)
/repo/gcc-trunk/gcc/gcov-io.cc:128
0x276a994 read_profile
/repo/gcc-trunk/gcc/auto-profile.cc:2710
0x2771485 read_autofdo_file()
/repo/gcc-trunk/gcc/auto-profile.cc:4032
0x2771485 execute
/repo/gcc-trunk/gcc/auto-profile.cc:4218
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-20250714174657-r16-2241-gd8680bac95c680-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/16.0.0/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
--disable-bootstrap --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 --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-20250714174657-r16-2241-gd8680bac95c680-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 16.0.0 20250714 (experimental) (GCC)
