[Bug middle-end/95270] OpenACC 'enter data attach' looks up target memory object displaced by pointer size

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95270

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Julian Brown
<jules@gcc.gnu.org>:

https://gcc.gnu.org/g:2974e1eee053496e1d43f7f2e62f5feac2aa0315

commit r10-8475-g2974e1eee053496e1d43f7f2e62f5feac2aa0315
Author: Julian Brown <julian@codesourcery.com>
Date:   Tue Jun 9 06:21:34 2020 -0700

    openacc: Set bias to zero for explicit attach/detach clauses in C and C++

    This is a fix for the pointer (or array) size inadvertently being used
    for the bias with attach and detach mapping kinds, for both C and C++.

    2020-07-09  Julian Brown  <julian@codesourcery.com>
                Thomas Schwinge  <thomas@codesourcery.com>

    gcc/c/
            PR middle-end/95270
            * c-typeck.c (c_finish_omp_clauses): Set OMP_CLAUSE_SIZE (bias) to
zero
            for standalone attach/detach clauses.

    gcc/cp/
            PR middle-end/95270
            * semantics.c (finish_omp_clauses): Likewise.

    include/
            PR middle-end/95270
            * gomp-constants.h (gomp_map_kind): Expand comment for
attach/detach
            mapping kinds.

    gcc/testsuite/
            PR middle-end/95270
            * c-c++-common/goacc/mdc-1.c: Update expected dump output for zero
            bias.

    libgomp/
            PR middle-end/95270
            * testsuite/libgomp.oacc-c-c++-common/pr95270-1.c: New test.
            * testsuite/libgomp.oacc-c-c++-common/pr95270-2.c: New test.

    (cherry picked from commit 0d00fe404c162ad0cf922ca8455aa23a74042b63)