[Bug modula2/109586] cc1gm2 ICE when compiling large source file

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109586

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Gaius Mulley
<gaius@gcc.gnu.org>:

https://gcc.gnu.org/g:2286745b12070320c8dcc5c75d76dd184cb7645e

commit r13-7616-g2286745b12070320c8dcc5c75d76dd184cb7645e
Author: Gaius Mulley <gaiusmod2@gmail.com>
Date:   Thu Jul 27 22:11:26 2023 +0100

    PR modula2/109586 cc1gm2 ICE when compiling large source files.

    The function m2block_RememberConstant calls m2tree_IsAConstant.
    However IsAConstant does not recognise TREE_CODE(t) ==
    CONSTRUCTOR as a constant.  Without this patch CONSTRUCTOR
    contants are garbage collected (and not preserved) resulting in
    a corrupt tree and crash.

    gcc/m2/ChangeLog:

            PR modula2/109586
            * gm2-gcc/m2tree.cc (m2tree_IsAConstant): Add (TREE_CODE
            (t) == CONSTRUCTOR) to expression.

    (cherry picked from commit a7e1ee39e4fa37d005929c4ff9457d1a199559c6)

    Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>