https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115137
Bug ID: 115137
Summary: [15 regression] Miscompilation of wget (test suite
hangs)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Created attachment 58226
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58226&action=edit
url.c
I noticed that wget's testsuite was hanging today in `unit-tests`.
```
(gdb) bt
#0 0x0000555555559319 in append_uri_pathel (e=e@entry=0x55555555a09d "",
escaped=escaped@entry=false, dest=dest@entry=0x7fffffffd780, b=0x55555555a090
"somepage.html")
at ../src/url.c:1509
#1 0x00005555555563e0 in test_append_uri_pathel () at ../src/url.c:2492
#2 all_tests () at /home/sam/git/wget/tests/unit-tests.c:47
#3 main (argc=<optimized out>, argv=<optimized out>) at
/home/sam/git/wget/tests/unit-tests.c:70
```
I'm still reducing it but it hangs with gcc-15 -O2.
```
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/15/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/15
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/15/python
--enable-languages=c,c++,fortran,rust --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--disable-libunwind-exceptions --enable-checking=yes,extra,rtl
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo Hardened
15.0.9999 p, commit bc7d81fe2f725b4043ce8b9ffb11d80032ce3f75'
--with-gcc-major-version-only --enable-libstdcxx-time --enable-lto
--disable-libstdcxx-pch --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-multilib
--with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all
--enable-libgomp --disable-libssp --disable-libada --disable-cet
--disable-systemtap --enable-valgrind-annotations --disable-vtable-verify
--disable-libvtv --with-zstd --with-isl --disable-isl-version-check
--enable-default-pie --enable-host-pie --enable-host-bind-now
--enable-default-ssp --disable-fixincludes --with-build-config=bootstrap-O3
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20240516 (experimental)
556e777298dac8574533935000c57335c5232921 (Gentoo Hardened 15.0.9999 p, commit
bc7d81fe2f725b4043ce8b9ffb11d80032ce3f75)
```
