On Linux/x86_64,
e77daa57300ba2cb116af8dd24f58cad00dc669c is the first bad commit
commit e77daa57300ba2cb116af8dd24f58cad00dc669c
Author: Paul Thomas <[email protected]>
Date: Wed Sep 24 08:01:23 2025 +0100
Fortran: Fix ICE in check_interface [PR87908]
caused
FAIL: gfortran.dg/pr87908.f90 -O0 (internal compiler error: Segmentation
fault)
FAIL: gfortran.dg/pr87908.f90 -O0 (test for excess errors)
FAIL: gfortran.dg/pr87908.f90 -O1 (internal compiler error: Segmentation
fault)
FAIL: gfortran.dg/pr87908.f90 -O1 (test for excess errors)
FAIL: gfortran.dg/pr87908.f90 -O2 (internal compiler error: Segmentation
fault)
FAIL: gfortran.dg/pr87908.f90 -O2 (test for excess errors)
FAIL: gfortran.dg/pr87908.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (internal compiler error:
Segmentation fault)
FAIL: gfortran.dg/pr87908.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions (test for excess errors)
FAIL: gfortran.dg/pr87908.f90 -O3 -g (internal compiler error: Segmentation
fault)
FAIL: gfortran.dg/pr87908.f90 -O3 -g (test for excess errors)
FAIL: gfortran.dg/pr87908.f90 -Os (internal compiler error: Segmentation
fault)
FAIL: gfortran.dg/pr87908.f90 -Os (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-4069/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}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/pr87908.f90
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/pr87908.f90
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/pr87908.f90
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/pr87908.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.)
