[PATCH] D67833: [OpenMP 5.0] Codegen support to pass user-defined mapper functions to runtime

[Joachim Protze via Phabricator via llvm-commits]

protze.joachim added a comment.

I'm executing:

  $ /usr/bin/python bin/llvm-lit -vv -a projects/openmp/libomptarget/test/offloading/target_depend_nowait.cpp

which executes:

  "/dev/shm/jprotze/build-tsan-fiber-as/./bin/clang++" "-fopenmp" "-pthread" "-fno-experimental-isel" "-I" "/dev/shm/jprotze/llvm-project/openmp/libomptarget/test" "-I" "/dev/shm/jprotze/build-tsan-fiber-as/projects/openmp/libomptarget/../runtime/src" "-L" "/dev/shm/jprotze/build-tsan-fiber-as/lib" "-fopenmp-targets=x86_64-pc-linux-gnu" "/dev/shm/jprotze/llvm-project/openmp/libomptarget/test/offloading/target_depend_nowait.cpp" "-o" "/dev/shm/jprotze/build-tsan-fiber-as/projects/openmp/libomptarget/test/offloading/Output/target_depend_nowait.cpp.tmp-x86_64-pc-linux-gnu"

According to gdb, the segfault happens in  0x400fcf. %rcx is 0 at that time.

   400f89:       e8 62 fc ff ff          callq  400bf0 <__kmpc_omp_target_task_alloc at plt>
    400f8e:       45 31 c9                xor    %r9d,%r9d
    400f91:       31 c9                   xor    %ecx,%ecx
    400f93:       48 8d 55 88             lea    -0x78(%rbp),%rdx
    400f97:       48 8b 75 e0             mov    -0x20(%rbp),%rsi
    400f9b:       48 89 70 28             mov    %rsi,0x28(%rax)
    400f9f:       48 8b 75 e8             mov    -0x18(%rbp),%rsi
    400fa3:       48 89 70 30             mov    %rsi,0x30(%rax)
    400fa7:       48 8b 75 d0             mov    -0x30(%rbp),%rsi
    400fab:       48 89 70 38             mov    %rsi,0x38(%rax)
    400faf:       48 8b 75 d8             mov    -0x28(%rbp),%rsi
    400fb3:       48 89 70 40             mov    %rsi,0x40(%rax)
    400fb7:       48 8b 34 25 40 1f 40    mov    0x401f40,%rsi
    400fbe:       00 
    400fbf:       48 89 70 48             mov    %rsi,0x48(%rax)
    400fc3:       48 8b 34 25 48 1f 40    mov    0x401f48,%rsi
    400fca:       00 
    400fcb:       48 89 70 50             mov    %rsi,0x50(%rax)
  > 400fcf:       48 8b 31                mov    (%rcx),%rsi
    400fd2:       48 89 70 58             mov    %rsi,0x58(%rax)
    400fd6:       48 8b 49 08             mov    0x8(%rcx),%rcx
    400fda:       48 89 48 60             mov    %rcx,0x60(%rax)
    400fde:       48 b9 00 61 60 00 00    movabs $0x606100,%rcx
    400fe5:       00 00 00 
    400fe8:       48 89 4d 88             mov    %rcx,-0x78(%rbp)
    400fec:       48 c7 45 90 04 00 00    movq   $0x4,-0x70(%rbp)
    400ff3:       00 
    400ff4:       c6 45 98 03             movb   $0x3,-0x68(%rbp)
    400ff8:       48 c7 45 80 01 00 00    movq   $0x1,-0x80(%rbp)
    400fff:       00 
    401000:       48 8b 4d f8             mov    -0x8(%rbp),%rcx
    401004:       8b 31                   mov    (%rcx),%esi
    401006:       48 b9 97 1f 40 00 00    movabs $0x401f97,%rcx
    40100d:       00 00 00 
    401010:       48 89 4d b0             mov    %rcx,-0x50(%rbp)
    401014:       48 8d 7d a0             lea    -0x60(%rbp),%rdi
    401018:       48 89 95 18 fe ff ff    mov    %rdx,-0x1e8(%rbp)
    40101f:       48 89 c2                mov    %rax,%rdx
    401022:       b9 01 00 00 00          mov    $0x1,%ecx
    401027:       4c 8b 85 18 fe ff ff    mov    -0x1e8(%rbp),%r8
    40102e:       48 c7 04 24 00 00 00    movq   $0x0,(%rsp)
    401035:       00 
    401036:       e8 55 fb ff ff          callq  400b90 <__kmpc_omp_task_with_deps at plt>


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D67833/new/

https://reviews.llvm.org/D67833