[Bug fortran/56471] Program crashes when allocating a derived type with an allocatable component

[etienne.pellegrini at jpl dot nasa.gov]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56471

Etienne Pellegrini <etienne.pellegrini at jpl dot nasa.gov> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |etienne.pellegrini at jpl dot nasa
                   |                            |.gov

--- Comment #4 from Etienne Pellegrini <etienne.pellegrini at jpl dot nasa.gov> ---
This bug is reconfirmed with gcc-10.2.0, using Vladimir Fuka's reproduction
source file.

$ gfortran -v allocate.f90 -fcheck=all -fbacktrace -g -gdwarf-3
Driving: gfortran -v allocate.f90 -fcheck=all -fbacktrace -g -gdwarf-3 -l
gfortran -l m -shared-libgcc
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../../src/gcc-10.2.0/configure
--prefix=/home/etiennes/.local/opt/gcc-10.2.0
--exec-prefix=/home/etiennes/.local
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.2.0 (GCC)
COLLECT_GCC_OPTIONS='-v' '-fcheck=all' '-fbacktrace' '-g' '-gdwarf-3'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 /home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/f951 allocate.f90
-quiet -dumpbase allocate.f90 -mtune=generic -march=x86-64 -auxbase allocate -g
-gdwarf-3 -version -fcheck=all -fbacktrace -fintrinsic-modules-path
/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/finclude -o
/tmp/ccM11kGs.s
GNU Fortran (GCC) version 10.2.0 (x86_64-pc-linux-gnu)
        compiled by GNU C version 10.2.0, GMP version 6.1.0, MPFR version
3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP

GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran2008 (GCC) version 10.2.0 (x86_64-pc-linux-gnu)
        compiled by GNU C version 10.2.0, GMP version 6.1.0, MPFR version
3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP

GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
COLLECT_GCC_OPTIONS='-v' '-fcheck=all' '-fbacktrace' '-g' '-gdwarf-3'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 as -v --64 -o /tmp/ccm2HDAF.o /tmp/ccM11kGs.s
GNU assembler version 2.25.1 (x86_64-redhat-linux) using BFD version version
2.25.1-32.base.el7_4.1
Reading specs from
/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../lib64/libgfortran.spec
rename spec lib to liborig
COLLECT_GCC_OPTIONS='-v' '-fcheck=all' '-fbacktrace' '-g' '-gdwarf-3'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
COMPILER_PATH=/home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/:/home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/:/home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/:/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/:/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/
LIBRARY_PATH=/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/:/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../lib64/:/lib/../lib64/:/usr/lib/../lib64/:/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-fcheck=all' '-fbacktrace' '-g' '-gdwarf-3'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 /home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/collect2 -plugin
/home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/liblto_plugin.so
-plugin-opt=/home/etiennes/.local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
-plugin-opt=-fresolution=/tmp/ccpR7PBS.res -plugin-opt=-pass-through=-lgcc_s
-plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lquadmath
-plugin-opt=-pass-through=-lm -plugin-opt=-pass-through=-lgcc_s
-plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc
--eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2
/lib/../lib64/crt1.o /lib/../lib64/crti.o
/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/crtbegin.o
-L/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0
-L/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../lib64
-L/lib/../lib64 -L/usr/lib/../lib64
-L/home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../..
/tmp/ccm2HDAF.o -lgfortran -lm -lgcc_s -lgcc -lquadmath -lm -lgcc_s -lgcc -lc
-lgcc_s -lgcc /home/etiennes/.local/lib/gcc/x86_64-pc-linux-gnu/10.2.0/crtend.o
/lib/../lib64/crtn.o
COLLECT_GCC_OPTIONS='-v' '-fcheck=all' '-fbacktrace' '-g' '-gdwarf-3'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'

$ ./a.out
Segmentation fault