On Linux/x86_64,
f935a7a9013d0748ba1f42dc532df3d278707bf6 is the first bad commit
commit f935a7a9013d0748ba1f42dc532df3d278707bf6
Author: Jerry DeLisle <[email protected]>
Date: Thu Jul 9 19:24:49 2026 -0700
fortran: [PR126170] Fix LTO ICE in copy_function_or_variable
caused
FAIL: libgomp.fortran/allocate-1.f90 -O0 (test for excess errors)
FAIL: libgomp.fortran/allocate-1.f90 -O1 (test for excess errors)
FAIL: libgomp.fortran/allocate-1.f90 -O2 (test for excess errors)
FAIL: libgomp.fortran/allocate-1.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (test for excess errors)
FAIL: libgomp.fortran/allocate-1.f90 -O3 -g (test for excess errors)
FAIL: libgomp.fortran/allocate-1.f90 -Os (test for excess errors)
FAIL: libgomp.fortran/cancel-do-2.f90 -O0 (test for excess errors)
FAIL: libgomp.fortran/cancel-do-2.f90 -O1 (test for excess errors)
FAIL: libgomp.fortran/cancel-do-2.f90 -O2 (test for excess errors)
FAIL: libgomp.fortran/cancel-do-2.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (test for excess errors)
FAIL: libgomp.fortran/cancel-do-2.f90 -O3 -g (test for excess errors)
FAIL: libgomp.fortran/cancel-do-2.f90 -Os (test for excess errors)
FAIL: libgomp.fortran/task1.f90 -O0 (test for excess errors)
FAIL: libgomp.fortran/task1.f90 -O1 (test for excess errors)
FAIL: libgomp.fortran/task1.f90 -O2 (test for excess errors)
FAIL: libgomp.fortran/task1.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (test for excess errors)
FAIL: libgomp.fortran/task1.f90 -O3 -g (test for excess errors)
FAIL: libgomp.fortran/task1.f90 -Os (test for excess errors)
FAIL: libgomp.fortran/teams2.f90 -O (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-2320/usr
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl
--enable-libmpx x86_64-linux --disable-bootstrap
To reproduce:
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocate-1.f90
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocate-1.f90
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocate-1.f90
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/allocate-1.f90
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/cancel-do-2.f90
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/cancel-do-2.f90
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/cancel-do-2.f90
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/cancel-do-2.f90
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/task1.f90 --target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/task1.f90 --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/task1.f90 --target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/task1.f90 --target_board='unix{-m64\
-march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/teams2.f90
--target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/teams2.f90 --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/teams2.f90
--target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check
RUNTESTFLAGS="fortran.exp=libgomp.fortran/teams2.f90 --target_board='unix{-m64\
-march=cascadelake}'"
(Please directly reply to this email for question about this report.)
(If you met problems with cascadelake related, disabling AVX512F in command
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)
