https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71087
Bug ID: 71087
Summary: scipy amos crash
Product: gcc
Version: 6.1.0
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: nickpapior at gmail dot com
Target Milestone: ---
Created attachment 38475
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38475&action=edit
Source code trigging bug
- Compiling amos/zunhj.f in scipy package crashes with:
zunhj.f:1:0:
SUBROUTINE ZUNHJ(ZR, ZI, FNU, IPMTR, TOL, PHIR, PHII, ARGR, ARGI,
internal compiler error: Illegal instruction
0xa64def crash_signal
../../gcc/toplev.c:333
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
- This bug happens whenever -OX, for X>=1 is in effect.
- This returns no errors:
gfortran -fsanitize=undefined -c zunhj.f
- Here is the output of the detailed excerpt:
Using built-in specs.
COLLECT_GCC=gfortran
Target: x86_64-pc-linux-gnu
Configured with: ../configure --prefix <>/gcc/6.1.0 --with-gmp=<>/gmp/6.1.0
--with-mpfr=<>/mpfr/3.1.4 --with-mpc=<>/mpc/1.0.3 --with-isl=<>/isl/0.16.1
--enable-lto --enable-threads
--enable-stage1-languages=c,c++,fortran,go,objc,obj-c++
--with-multilib-list=m64
Thread model: posix
gcc version 6.1.0 (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O1' '-c' '-mtune=generic'
'-march=x86-64'
<>/gcc/6.1.0/libexec/gcc/x86_64-pc-linux-gnu/6.1.0/f951 zunhj.f -ffixed-form
-quiet -dumpbase zunhj.f -mtune=generic -march=x86-64 -auxbase zunhj -O1
-version -fintrinsic-modules-path
<>/gcc/6.1.0/lib/gcc/x86_64-pc-linux-gnu/6.1.0/finclude -o zunhj.s
GNU Fortran (GCC) version 6.1.0 (x86_64-pc-linux-gnu)
compiled by GNU C version 6.1.0, GMP version 6.1.0, MPFR version 3.1.4,
MPC version 1.0.3, isl version 0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran2008 (GCC) version 6.1.0 (x86_64-pc-linux-gnu)
compiled by GNU C version 6.1.0, GMP version 6.1.0, MPFR version 3.1.4,
MPC version 1.0.3, isl version 0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
zunhj.f:1:0:
SUBROUTINE ZUNHJ(ZR, ZI, FNU, IPMTR, TOL, PHIR, PHII, ARGR, ARGI,
internal compiler error: Illegal instruction
0xa64def crash_signal
../../gcc/toplev.c:333
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
- uname -a returns
Linux <> 2.6.32-573.22.1.el6.x86_64 #1 SMP Tue Mar 22 17:15:28 CDT 2016 x86_64
x86_64 x86_64 GNU/Linux
- As a bonus information. This source code has been in scipy since Aug. 2007
with no change since. It successfully compiles using 5.[1-3].0 and 4.8.3 and
4.9.[1-3] (tested in my build).
