(GCC) 13.0.1: internal compiler error

[Patrick Begou via Fortran]

Hi,

I have built this morning the latest gfortran from a git clone:

GNU Fortran (GCC) 13.0.1 20230421 (prerelease)



At this time:

- code compiles with nvfortran and runs on A100 GPU.





- a basic test-code using OpenACC compiles and run on the GPU.




transforms_defs_m.f90:354:53:

  354 |             !$acc enter data attach(atransform2%next)
      |                                                     ^
internal compiler error: in omp_group_base, at gimplify.cc:9412
0xa830c6 omp_group_base
    ../../gcc/gcc/gimplify.cc:9412
0xa830c6 omp_index_mapping_groups_1
    ../../gcc/gcc/gimplify.cc:9441
0xa833c7 omp_index_mapping_groups
    ../../gcc/gcc/gimplify.cc:9502
0xa96a9a gimplify_scan_omp_clauses
    ../../gcc/gcc/gimplify.cc:10802
0xa8660d gimplify_omp_target_update
    ../../gcc/gcc/gimplify.cc:15563

    ../../gcc/gcc/gimplify.cc:16928
0xa89826 gimplify_stmt(tree_node**, gimple**)
    ../../gcc/gcc/gimplify.cc:7219
0xa875a3 gimplify_statement_list
    ../../gcc/gcc/gimplify.cc:2019

    ../../gcc/gcc/gimplify.cc:16821
0xa89826 gimplify_stmt(tree_node**, gimple**)
    ../../gcc/gcc/gimplify.cc:7219
0xa86e8a gimplify_and_add(tree_node*, gimple**)
    ../../gcc/gcc/gimplify.cc:492
0xa86e8a gimplify_loop_expr
    ../../gcc/gcc/gimplify.cc:1993

    ../../gcc/gcc/gimplify.cc:16581
0xa89826 gimplify_stmt(tree_node**, gimple**)
    ../../gcc/gcc/gimplify.cc:7219
0xa875a3 gimplify_statement_list
    ../../gcc/gcc/gimplify.cc:2019

    ../../gcc/gcc/gimplify.cc:16821
0xa89826 gimplify_stmt(tree_node**, gimple**)
    ../../gcc/gcc/gimplify.cc:7219
0xa89d2b gimplify_bind_expr
    ../../gcc/gcc/gimplify.cc:1430

    ../../gcc/gcc/gimplify.cc:16577
0xa89826 gimplify_stmt(tree_node**, gimple**)
    ../../gcc/gcc/gimplify.cc:7219







No additionnal files a produced with -freport-bug.

In attachment the script used to build the compiler.



Patrick

I'm trying this compiler on a large and complexe Fortran90 code with offloading using OpenACC. - code compiles with Cray Fortran (with some difficulties) but do not run on MI250 GPU (we are tacking the problem, a segfault if openacc is set on) - code compile with GNU GCC 13 without -fopenacc option and runs on cpu (Epyc2 7302) - compiling my large code with gcc 13.0.1 using -fopenacc for A100 GPU produce an internal error in the compiler : 0xa8660d gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) 0xa875a3 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) 0xa86e8a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) 0xa875a3 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) 0xa86d8e gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) Please submit a full bug report, with preprocessed source (by using -freport-bug). Options used (I've just added  -fopenacc for moving from cpu version to OpenACC): -fopenacc -freport-bug -g -fpic -x f95-cpp-input -std=gnu -ffree-form -fall-intrinsics -fallow-argument-mismatch -Wall -Wextra -W -Wno-unused-function -Wno-compare-reals -fno-omit-frame-pointer  -O3  -ftree-vectorize -ffast-math -funroll-loops -pipe Let me know how I can help with informations to improve Gnu fortran compilers.

build_all.sh
Description: application/shellscript