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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/90903] Implement runtime checks for bit manipulation
 intrinsics
Date: Mon, 21 Sep 2020 19:51:03 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D90903

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:

https://gcc.gnu.org/g:5c5ce6099082b642294091c83461c928bd028ea1

commit r11-3332-g5c5ce6099082b642294091c83461c928bd028ea1
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Mon Sep 21 21:50:36 2020 +0200

    PR fortran/90903 [part2] - Add runtime checking for the MVBITS intrinsic

    Implement inline expansion of the intrinsic elemental subroutine MVBITS
    with optional runtime checks for valid argument range.

    gcc/fortran/ChangeLog:

            * iresolve.c (gfc_resolve_mvbits): Remove unneeded conversion of
            FROMPOS, LEN and TOPOS arguments to fit a C int.
            * trans-intrinsic.c (gfc_conv_intrinsic_mvbits): Add inline
            expansion of MVBITS intrinsic elemental subroutine and add code
            for runtime argument checking.
            (gfc_conv_intrinsic_subroutine): Recognise MVBITS intrinsic, but
            defer handling to gfc_trans_call.
            * trans-stmt.c (replace_ss):
            (gfc_trans_call): Adjust to handle inline expansion, scalarizat=
ion
            of intrinsic subroutine MVBITS in gfc_conv_intrinsic_mvbits.
            * trans.h (gfc_conv_intrinsic_mvbits): Add prototype for
            gfc_conv_intrinsic_mvbits.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/check_bits_2.f90: New test.

    Co-authored-by: Paul Thomas  <pault@gcc.gnu.org>=