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From: "reiter.christoph at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/105745] [12/13 Regression] Conditional OpenMP directive
 fails with GCC 12
Date: Fri, 27 May 2022 06:38:01 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105745

--- Comment #2 from Christoph Reiter <reiter.christoph at gmail dot com> ---
For "#pragma omp parallel for if (0)":

#0  0x00007ffacdeac6b3 in ntdll!RtlIsZeroMemory ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#1  0x00007ffacdeb5512 in ntdll!.misaligned_access ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#2  0x00007ffacdeb57fa in ntdll!.misaligned_access ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#3  0x00007ffacdebfce5 in ntdll!.misaligned_access ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#4  0x00007ffacddc8715 in ntdll!RtlGetCurrentServiceSessionId ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#5  0x00007ffacddc79e1 in ntdll!RtlFreeHeap ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#6  0x00007ffacb4e218b in ucrtbase!_free_base ()
   from C:\WINDOWS\System32\ucrtbase.dll
#7  0x00007ffa7fd3eab6 in free_team (team=3Dteam@entry=3D0x25d609d0fc0)
    at ../../../gcc-12.1.0/libgomp/team.c:237
#8  0x00007ffa7fd3ff8a in gomp_team_end ()
    at ../../../gcc-12.1.0/libgomp/team.c:1005
#9  0x00007ffa7fd3899e in GOMP_parallel_end ()
    at ../../../gcc-12.1.0/libgomp/parallel.c:167
#10 0x00007ffa7fd38a73 in GOMP_parallel (
    fn=3Dfn@entry=3D0x7ff707941530 <main._omp_fn.0(void)>, data=3Ddata@entr=
y=3D0x0,
    num_threads=3Dnum_threads@entry=3D1, flags=3Dflags@entry=3D0)
    at ../../../gcc-12.1.0/libgomp/parallel.c:179
#11 0x00007ff707941584 in main () at myTest.cpp:2

For "#pragma omp for schedule(dynamic)"

#0  0x00007ffacdeac6b3 in ntdll!RtlIsZeroMemory ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#1  0x00007ffacdeb5512 in ntdll!.misaligned_access ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#2  0x00007ffacdeb57fa in ntdll!.misaligned_access ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#3  0x00007ffacdebfce5 in ntdll!.misaligned_access ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#4  0x00007ffacddc8715 in ntdll!RtlGetCurrentServiceSessionId ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#5  0x00007ffacddc79e1 in ntdll!RtlFreeHeap ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
#6  0x00007ffacb4e218b in ucrtbase!_free_base ()
   from C:\WINDOWS\System32\ucrtbase.dll
#7  0x00007ffa7eae050e in free_work_share (team=3Dteam@entry=3D0x0,
    ws=3D0x2b6040a8480) at ../../../gcc-12.1.0/libgomp/work.c:159
#8  0x00007ffa7eae0682 in gomp_work_share_end ()
    at ../../../gcc-12.1.0/libgomp/work.c:238
#9  0x00007ffa7ead68b4 in GOMP_loop_end ()
    at ../../../gcc-12.1.0/libgomp/loop.c:958
#10 0x00007ff6b18f1593 in main () at myTest.cpp:3=