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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/108741] [OpenMP] Wrong code for lastprivate with pointer iteration variable Date: Thu, 09 Feb 2023 12:39:21 +0000 [thread overview] Message-ID: <bug-108741-4-Dpdrg9Tc7x@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-108741-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108741 --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- #pragma omp simd collapse(2) lastprivate(a0,a1,j) for (a0 = 1; a0 <= 10; a0++) for (j = 1; j <= 20; j++) **a1 = a0; /// Segfaults here as *a0 points to invalid memory You mean *a1. That testcase is invalid, when a1 is lastprivate, it's privatized copy is uninitialized at the start and a1 is assigned the last iteration's value.
next prev parent reply other threads:[~2023-02-09 12:39 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-02-09 12:35 [Bug fortran/108741] New: " burnus at gcc dot gnu.org 2023-02-09 12:39 ` jakub at gcc dot gnu.org [this message] 2023-02-09 14:12 ` [Bug fortran/108741] " burnus at gcc dot gnu.org 2023-02-09 14:12 ` burnus at gcc dot gnu.org
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