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From: "townsend at astro dot wisc.edu" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/99169] New: Segfault when passing allocatable scalar into intent(out) dummy argument Date: Fri, 19 Feb 2021 17:31:45 +0000 [thread overview] Message-ID: <bug-99169-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99169 Bug ID: 99169 Summary: Segfault when passing allocatable scalar into intent(out) dummy argument Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: townsend at astro dot wisc.edu Target Milestone: --- Created attachment 50222 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50222&action=edit Minimal working example I've encountered a problem when passing an allocatable (and alread allocated) scalar as an actual argument to a procedure with an intent(out) (but not allocatable) dummy argument. The attached code illustrates the problem. Compiling with gfortran 10.2.0 at optimization level -O1 or -O2 leads to a segmentation fault at runtime. The segfault arises when the dummy is assigned within set_i(). This problem does not arise at optimization level -O0, and the program performs as expected (outputting '5' to the terminal). The problem also seems to disappear when set_i() is a CONTAINed procedure in the main program, rather than a module procedure. cheers, Rich
next reply other threads:[~2021-02-19 17:31 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-19 17:31 townsend at astro dot wisc.edu [this message] 2021-02-19 19:49 ` [Bug fortran/99169] [9/10/11 Regression] " anlauf at gcc dot gnu.org 2021-02-19 19:58 ` anlauf at gcc dot gnu.org 2021-02-19 20:13 ` anlauf at gcc dot gnu.org 2021-02-19 20:20 ` anlauf at gcc dot gnu.org 2021-02-19 21:17 ` anlauf at gcc dot gnu.org 2021-02-21 20:44 ` cvs-commit at gcc dot gnu.org 2021-02-23 18:14 ` cvs-commit at gcc dot gnu.org 2021-02-23 18:27 ` cvs-commit at gcc dot gnu.org 2021-02-23 18:29 ` anlauf at gcc dot gnu.org 2022-09-25 12:48 ` cvs-commit at gcc dot gnu.org
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