[Bug fortran/95215] New: internal compiler error: in gimplify_expr, at gimplify.c:14079

[Bug fortran/95215] New: internal compiler error: in gimplify_expr, at gimplify.c:14079

[john.donners at atos dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95215

            Bug ID: 95215
           Summary: internal compiler error: in gimplify_expr, at
                    gimplify.c:14079
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: john.donners at atos dot net
  Target Milestone: ---

Created attachment 48569
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48569&action=edit
internal compiler error: in gimplify_expr, at gimplify.c:14079

Hello,

I attached another ICE. 

Command: gfortran -g -fopenmp -O3 ice_gcc10_g_fopenmp_O3.f90

Output:

during GIMPLE pass: ompdevlow
ice_gcc10_g_fopenmp_O3.f90: In function ‘thermodynamics_._omp_fn.1’:
ice_gcc10_g_fopenmp_O3.f90:42: internal compiler error: in gimplify_expr, at
gimplify.c:14079
   42 |      call therm_ice
      | 
0x7727cf gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        ../../gcc/gcc/gimplify.c:14079
0x77deab gimple_regimplify_operands(gimple*, gimple_stmt_iterator*)
        ../../gcc/gcc/gimplify-me.c:247
0x89fb57 execute_omp_device_lower
        ../../gcc/gcc/omp-offload.c:1975
0x89fb57 execute
        ../../gcc/gcc/omp-offload.c:2011
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
mkoffload: fatal error: x86_64-pc-linux-gnu-accel-nvptx-none-gcc returned 1
exit
status
compilation terminated.
lto-wrapper: fatal error:
/software/compilers/gcc-offload/10.1.0/gnu-9.2.0/libexec/gcc/x86_64-pc-linux-nu/10.1.0//accel/nvptx-none/mkoffload
returned 1 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status


Cheers,
John

[Bug fortran/95215] [OMP] internal compiler error: in gimplify_expr, at gimplify.c:14079

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95215

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2020-06-09
           Priority|P3                          |P4
     Ever confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
WORKSFORME since GCC6 up to master.

[Bug fortran/95215] [OMP] internal compiler error: in gimplify_expr, at gimplify.c:14079

[john.donners at atos dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95215

--- Comment #2 from John Donners <john.donners at atos dot net> ---
thanks for reviewing this. Indeed, the compiler bug does not occur when using
the intelmicemul target:

gfortran -foffload=x86_64-intelmicemul-linux-gnu -g  -fopenmp -O3 bla.f90
/lib/../lib64/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
/tmp/ccfY1ov8.o: In function `therm_ice_':
/home_nfs_robin_ib/bdonnersj/tmp/bla.f90:61: undefined reference to `budget_'
/home_nfs_robin_ib/bdonnersj/tmp/bla.f90:61: undefined reference to `budget_'
collect2: error: ld returned 1 exit status

but it does occur for the nvptx-none target:

$ gfortran -foffload=nvptx-none -g  -fopenmp -O3 bla.f90
during GIMPLE pass: ompdevlow
bla.f90: In function ‘thermodynamics_._omp_fn.1’:
bla.f90:45: internal compiler error: in gimplify_expr, at gimplify.c:14079
   45 |      call therm_ice
      | 
0x7727cf gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        ../../gcc/gcc/gimplify.c:14079
0x77deab gimple_regimplify_operands(gimple*, gimple_stmt_iterator*)
        ../../gcc/gcc/gimplify-me.c:247
0x89fb57 execute_omp_device_lower
        ../../gcc/gcc/omp-offload.c:1975
0x89fb57 execute
        ../../gcc/gcc/omp-offload.c:2011
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
mkoffload: fatal error: x86_64-pc-linux-gnu-accel-nvptx-none-gcc returned 1
exit status
compilation terminated.
lto-wrapper: fatal error:
/software/compilers/gcc-offload/10.1.0/gnu-9.2.0/libexec/gcc/x86_64-pc-linux-gnu/10.1.0//accel/nvptx-none/mkoffload
returned 1 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status

I do not know what happens for the amdgcn-amdhsa target.

[Bug fortran/95215] [OMP] internal compiler error: in gimplify_expr, at gimplify.c:14079

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95215

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |11.4.1, 12.3.1

--- Comment #3 from anlauf at gcc dot gnu.org ---
Works (= compiles) here on OpenSuse 15.4 with gfortran-11 and -12 and with

  -g -fopenmp -O3 -foffload=nvptx-none

but cannot link or test further due to unresolved external.

Not entirely sure if the release versions of the distro just hide the problem,
or if your problem is resolved.

Please test one of the newer releases and report back.