[Bug lto/94320] New: [OpenMP][Offloading] lto1 ICE during IPA pass: inline – offline_size at gcc/ipa-inline-analysis.c:453

[burnus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94320

            Bug ID: 94320
           Summary: [OpenMP][Offloading] lto1 ICE during IPA pass: inline
                    – offline_size at gcc/ipa-inline-analysis.c:453
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, openmp
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
                CC: marxin at gcc dot gnu.org
  Target Milestone: ---

May or may not be related to PR 92029

Still reducing the test case. When compiling with "-fopenmp -O0" it works, but
with "-fopenmp -O1" the offloading-compiler (AMDGCN or – has here – nvptx) ICEs
with:


during IPA pass: inline
lto1: internal compiler error: Segmentation fault
0xbdb6ff crash_signal
       
/net/build5-trusty-cs/scratch/tburnus/openacc.x86_64-linux-gnu-openacc-mainline/src/gcc-mainline/gcc/toplev.c:328
0x98074f offline_size
       
/net/build5-trusty-cs/scratch/tburnus/openacc.x86_64-linux-gnu-openacc-mainline/src/gcc-mainline/gcc/ipa-inline-analysis.c:453
0x980b58 growth_positive_p(cgraph_node*, cgraph_edge*, int)
       
/net/build5-trusty-cs/scratch/tburnus/openacc.x86_64-linux-gnu-openacc-mainline/src/gcc-mainline/gcc/ipa-inline-analysis.c:549
0x138610f want_inline_function_to_all_callers_p
       
/net/build5-trusty-cs/scratch/tburnus/openacc.x86_64-linux-gnu-openacc-mainline/src/gcc-mainline/gcc/ipa-inline.c:1088
0x138c37f ipa_inline
       
/net/build5-trusty-cs/scratch/tburnus/openacc.x86_64-linux-gnu-openacc-mainline/src/gcc-mainline/gcc/ipa-inline.c:2752
0x138d099 execute
       
/net/build5-trusty-cs/scratch/tburnus/openacc.x86_64-linux-gnu-openacc-mainline/src/gcc-mainline/gcc/ipa-inline.c:3091


It fails in ipa-inline-analysis.c's:

offline_size (struct cgraph_node *node, ipa_size_summary *info)
{
  if (!DECL_EXTERNAL (node->decl))
    {
      if (node->will_be_removed_from_program_if_no_direct_calls_p ())
        return info->size;

as info == NULL and decl is " <function_decl 0x7ffff73df500 __ct_base "

"info" is:
    ipa_size_summary *s = ipa_size_summaries->get (node);

And ->get returns:
369         return exists (node) ? (*m_vector)[node->get_summary_id ()] : NULL;