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* [Bug libgomp/108286] New: [GCC 12/13] OpenMP Target directive causes internal compiler error
@ 2023-01-04 17:11 j.reuter@fz-juelich.de
  2023-01-04 18:06 ` [Bug c++/108286] " jakub at gcc dot gnu.org
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: j.reuter@fz-juelich.de @ 2023-01-04 17:11 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108286

            Bug ID: 108286
           Summary: [GCC 12/13] OpenMP Target directive causes internal
                    compiler error
           Product: gcc
           Version: 12.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgomp
          Assignee: unassigned at gcc dot gnu.org
          Reporter: j.reuter@fz-juelich.de
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---

Created attachment 54189
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54189&action=edit
Source Code, .ii and .s file of GCC 12, .out file of GCC 13 (experimental)

I've been tinkering around with OpenMP Target in the last few weeks. I ran into
issues with other compilers while testing omp target enter and exit data. While
trying GCC, I ran into a Segmentation Fault during the compilation. I could
reduce the source code to the code shown below. 

Tested system:
- Fedora Linux 37
- GCC 12.2.1

I was able to reproduce the same error with GodBolt using both x86-64 gcc 12.2
and x86-64 gcc 12.1 and the GCC 12.2 Docker container. Previous versions (11.x
and lower) throw error messages during compilation instead and do not crash. 
Link: https://godbolt.org/z/E5f6G7dP9

GCC 13.0 (2023-01-01) also results in internal compiler errors with the error
message (Preprocessed source of that version attached as well):
internal compiler error: tree check: expected private or shared or firstprivate
or lastprivate or reduction or task_reduction or in_reduction or copyin or
copyprivate or linear or affinity or aligned or allocate or depend or
nontemporal or uniform or enter or link or detach or use_device_ptr or
use_device_addr or is_device_ptr or inclusive or exclusive or from or to or map
or has_device_addr or doacross or _cache_ or gang or async or wait or auto or
seq or _looptemp_ or _reductemp_ or _condtemp_ or _scantemp_, have abs_expr in
finish_omp_target_clauses, at cp/semantics.cc:9830

How to reproduce:
--> error.cpp

class ErrorClass {
    void causeError() {
#pragma omp target map(size, ptr[:size]) nowait
#pragma omp teams
    float error = ptr[0];
}

unsigned size = 5;
float* ptr = new float[size];
};


bash> g++ -fopenmp error.cpp
error.cpp: In member function 'void ErrorClass::causeError()':
error.cpp:5:25: internal compiler error: Segmentation fault
    5 |     float error = ptr[0];
      |                         ^
0x1bb069e internal_error(char const*, ...)
        ???:0
0x8b4857 finish_omp_target_clauses(unsigned int, tree_node*, tree_node**)
        ???:0
0x8b6824 finish_omp_target(unsigned int, tree_node*, tree_node*, bool)
        ???:0
0x861eaa c_parse_file()
        ???:0
0x93e4e5 c_common_parse_file()
        ???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1

^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2023-02-10 17:59 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-01-04 17:11 [Bug libgomp/108286] New: [GCC 12/13] OpenMP Target directive causes internal compiler error j.reuter@fz-juelich.de
2023-01-04 18:06 ` [Bug c++/108286] " jakub at gcc dot gnu.org
2023-01-04 18:25 ` jakub at gcc dot gnu.org
2023-01-05 11:01 ` cvs-commit at gcc dot gnu.org
2023-01-05 11:04 ` [Bug c++/108286] [12 Regression] " jakub at gcc dot gnu.org
2023-01-06 10:37 ` j.reuter@fz-juelich.de
2023-02-10 17:45 ` cvs-commit at gcc dot gnu.org
2023-02-10 17:59 ` jakub at gcc dot gnu.org

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