[Bug fortran/67826] New: gcc/fortran/openmp.c:1808: bad test ?

["dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67826

            Bug ID: 67826
           Summary: gcc/fortran/openmp.c:1808: bad test ?
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

During a recent fortran build, I found

../../src/trunk/gcc/fortran/openmp.c:1808:33: warning: logical ‘and’ of
mutually exclusive tests is always false [-Wlogical-op]

Source code is

      && (ts->type == BT_DERIVED && ts->type == BT_CLASS)))

Maybe better code

      && (ts->type == BT_DERIVED || ts->type == BT_CLASS)))

I recommend an occasional fortran build with -Wlogical-op.
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From: "vmakarov at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/67756] [6 Regression] ICE compiling Linux Kernel fs/namei.c on ARM
Date: Fri, 02 Oct 2015 20:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67756

--- Comment #20 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to Bernd Edlinger from comment #19)
> ok, but now we have because of the warnings:
> 
> FAIL: gcc.target/arm/pr67756.c (test for excess errors)
> 
> I think something like this could fix it:
> 
> Index: pr67756.c
> ===================================================================
> --- pr67756.c	(revision 228404)
> +++ pr67756.c	(working copy)
> @@ -2,6 +2,8 @@
>  /* { dg-require-effective-target arm_hard_vfp_ok } */
>  /* { dg-options "-O2 -mapcs -march=armv7-a -mfloat-abi=hard
> -mfpu=vfpv3-d16" } */
>  
> +int inode_permission (), try_break_deleg ();
> +int mutex_lock (), mutex_unlock ();
>  struct mutex
>  {
>  };

Thanks for checking.  Could you commit it.  Thanks.
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Subject: [Bug sanitizer/67308] FATAL: ThreadSanitizer: unexpected memory mapping
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idg308

--- Comment #3 from Jerome Robert <jeromerobert at gmx dot com> ---
It looks like PIE is no longer needed (at least with gcc 5.2).

echo 'void main(void){}' | gcc -fsanitize=thread -xc - -ltsan && ./a.out

just work fine.