[Bug tree-optimization/98512] [11/12 Regression] “#pragma GCC diagnostic ignored” ineffective in conjunction with alias attribute

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98512

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <mse...@gcc.gnu.org>:

https://gcc.gnu.org/g:6d3bab5d5adb3e28ddb16c97b0831efdea23cf7d

commit r12-2087-g6d3bab5d5adb3e28ddb16c97b0831efdea23cf7d
Author: Martin Sebor <mse...@redhat.com>
Date:   Tue Jul 6 13:41:02 2021 -0600

    Improve warning suppression for inlined functions.

    Resolves:
    PR middle-end/98871 - Cannot silence -Wmaybe-uninitialized at declaration
site
    PR middle-end/98512 - #pragma GCC diagnostic ignored ineffective in
conjunction with alias attribute

    gcc/ChangeLog:

            * builtins.c (warn_string_no_nul): Remove %G.
            (maybe_warn_for_bound): Same.
            (warn_for_access): Same.
            (check_access): Same.
            (check_strncat_sizes): Same.
            (expand_builtin_strncat): Same.
            (expand_builtin_strncmp): Same.
            (expand_builtin): Same.
            (expand_builtin_object_size): Same.
            (warn_dealloc_offset): Same.
            (maybe_emit_free_warning): Same.
            * calls.c (maybe_warn_alloc_args_overflow): Same.
            (maybe_warn_nonstring_arg): Same.
            (maybe_warn_rdwr_sizes): Same.
            * expr.c (expand_expr_real_1): Remove %K.
            * gimple-fold.c (gimple_fold_builtin_strncpy): Remove %G.
            (gimple_fold_builtin_strncat): Same.
            * gimple-ssa-sprintf.c (format_directive): Same.
            (handle_printf_call): Same.
            * gimple-ssa-warn-alloca.c (pass_walloca::execute): Same.
            * gimple-ssa-warn-restrict.c (maybe_diag_overlap): Same.
            (maybe_diag_access_bounds): Same.  Call gimple_location.
            (check_bounds_or_overlap): Same.
            * trans-mem.c (ipa_tm_scan_irr_block): Remove %K.  Simplify.
            * tree-ssa-ccp.c (pass_post_ipa_warn::execute): Remove %G.
            * tree-ssa-strlen.c (maybe_warn_overflow): Same.
            (maybe_diag_stxncpy_trunc): Same.
            (handle_builtin_stxncpy_strncat): Same.
            (maybe_warn_pointless_strcmp): Same.
            * tree-ssa-uninit.c (maybe_warn_operand): Same.

    gcc/testsuite/ChangeLog:

            * gcc.dg/Wobjsize-1.c: Prune expected output.
            * gcc.dg/Warray-bounds-71.c: New test.
            * gcc.dg/Warray-bounds-71.h: New test header.
            * gcc.dg/Warray-bounds-72.c: New test.
            * gcc.dg/Warray-bounds-73.c: New test.
            * gcc.dg/Warray-bounds-74.c: New test.
            * gcc.dg/Warray-bounds-75.c: New test.
            * gcc.dg/Wfree-nonheap-object-4.c: Adjust expected output.
            * gcc.dg/Wfree-nonheap-object-5.c: New test.
            * gcc.dg/Wfree-nonheap-object-6.c: New test.
            * gcc.dg/pragma-diag-10.c: New test.
            * gcc.dg/pragma-diag-9.c: New test.
            * gcc.dg/uninit-suppress_3.c: New test.
            * gcc.dg/pr79214.c: Xfail tests.
            * gcc.dg/tree-ssa/builtin-sprintf-warn-27.c: New test.
            * gcc.dg/format/c90-printf-1.c: Adjust expected output.