On Mon, Oct 20, 2025 at 6:52 AM Josef Melcr <[email protected]> wrote:
>
> On 10/20/25 00:32, H.J. Lu wrote:
>
> On Mon, Oct 20, 2025 at 6:27 AM Josef Melcr <[email protected]> wrote:
>
> Hi,
>
> On 10/19/25 23:25, H.J. Lu wrote:
>
> On Fri, Oct 17, 2025 at 5:40 PM Josef Melcr <[email protected]> wrote:
>
> gcc/testsuite/ChangeLog:
>
> * gcc.dg/ipa/ipcp-cb-spec1.c: New test.
> * gcc.dg/ipa/ipcp-cb-spec2.c: New test.
> * gcc.dg/ipa/ipcp-cb1.c: New test.
>
> These run-time tests should be moved to libgomp to avoid
>
> xgcc: fatal error: cannot read spec file 'libgomp.spec': No such file
> or directory
> compilation terminated.
> compiler exited with status 1
> FAIL: gcc.dg/ipa/ipcp-cb1.c (test for excess errors)
>
> Will do, sorry if it caused any issues. Could you please elaborate on
> what the problem is and possibly how to reproduce it? I have not
> encountered it during my testing.
>
> The run-time gomp tests use libgomp.spec which is available in
> the libgomp build directory. You didn't see the issue since you
> have installed GCC 16 before. You will see the problem if you
> remove the installed GCC 16. I have
>
> [hjl@gnu-tgl-3 gcc]$ ./xgcc -v
> Using built-in specs.
> COLLECT_GCC=./xgcc
> Target: x86_64-pc-linux-gnu
> Configured with: /export/gnu/import/git/gitlab/x86-gcc/configure
> --disable-bootstrap --enable-cet --with-demangler-in-ld
> --prefix=/usr/gcc-16.0.0-x86-64 --with-local-prefix=/usr/local
> --enable-gnu-indirect-function --enable-clocale=gnu --with-system-zlib
> --with-target-system-zlib --with-fpmath=sse --with-tls=gnu2
> --disable-libcc1 --disable-libcilkrts --disable-libsanitizer
> --enable-languages=c,c++,fortran
> Thread model: posix
> Supported LTO compression algorithms: zlib zstd
> gcc version 16.0.0 20251019 (experimental) (GCC)
> [hjl@gnu-tgl-3 gcc]$
>
> But there is no /usr/gcc-16.0.0-x86-64 since it hasn't been installed yet.
>
> So is it because gcc is not installed? I tried removing the install
> directory, but the test still works when run with `make check-gcc
> RUNTESTFLAGS="-v -v ipa.exp=ipcp-cb1.c"` in the build directory. Though I
> have of course have different builds installled in their own directories,
> they should not be interfering. Running ./xgcc -v in $build_dir/gcc gives me
> the following:
>
> ```
> Using built-in specs.
> COLLECT_GCC=./xgcc
> Target: x86_64-pc-linux-gnu
> Configured with: /home/pjepjeno/gcc/src/trunk/configure
> --prefix=/home/pjepjeno/gcc/build/trunk/install
If you have removed /home/pjepjeno/gcc/build/trunk/install, your xgcc must
pick up libgomp.spec somewhere. Please run strace on gcc.dg/ipa/ipcp-cb1.c.
I got
$ strace
/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/
/export/gnu/import/git/gitlab/x86-gcc/gcc/testsuite/gcc.dg/ipa/ipcp-cb1.c
-fdiagnostics-plain-output -O3 -fopenmp -flto -std=gnu99
-fdump-ipa-cp-details -lm -o ./ipcp-cb1.exe 2>&1 | grep
libgomp.spec
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/x86_64-pc-linux-gnu/16.0.0/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/x86_64-pc-linux-gnu/16.0.0/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/x86_64-pc-linux-gnu/16.0.0/../../../../x86_64-pc-linux-gnu/lib/x86_64-pc-linux-gnu/16.0.0/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/x86_64-pc-linux-gnu/16.0.0/../../../../x86_64-pc-linux-gnu/lib/../lib64/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/x86_64-pc-linux-gnu/16.0.0/../../../x86_64-pc-linux-gnu/16.0.0/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/x86_64-pc-linux-gnu/16.0.0/../../../../lib64/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/lib/x86_64-pc-linux-gnu/16.0.0/libgomp.spec", R_OK) = -1
ENOENT (No such file or directory)
access("/lib/../lib64/libgomp.spec", R_OK) = -1 ENOENT (No such file
or directory)
access("/usr/lib/x86_64-pc-linux-gnu/16.0.0/libgomp.spec", R_OK) = -1
ENOENT (No such file or directory)
access("/usr/lib/../lib64/libgomp.spec", R_OK) = -1 ENOENT (No such
file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/x86_64-pc-linux-gnu/16.0.0/../../../../x86_64-pc-linux-gnu/lib/libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/../lib/gcc/x86_64-pc-linux-gnu/16.0.0/../../../libgomp.spec",
R_OK) = -1 ENOENT (No such file or directory)
access("/lib/libgomp.spec", R_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/libgomp.spec", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "libgomp.spec", O_RDONLY) = -1 ENOENT (No such file
or directory)
write(2, "xgcc: fatal error: cannot read s"..., 87xgcc: fatal error:
cannot read spec file ‘libgomp.spec’: No such file or directory
> Thread model: posix
> Supported LTO compression algorithms: zlib zstd
> gcc version 16.0.0 20251017 (experimental) (GCC)
>
> ```
>
> Best regards,
>
> Josef
>
>
--
H.J.
