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Subject: [Bug c/107306] [12/13 Regression] ICE: verify_gimple failed
Date: Thu, 20 Oct 2022 09:29:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107306

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:8e2b5cf7cde999582d1b8fff021faa487c8e34b0

commit r13-3397-g8e2b5cf7cde999582d1b8fff021faa487c8e34b0
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Oct 19 14:12:11 2022 +0200

    c/107305 - avoid ICEing with invalid GIMPLE input to the GIMPLE FE

    The GIMPLE FE was designed to defer semantic error checking to the
    GIMPLE IL verifier.  But that can end up causing spurious ICEs
    earlier and in fact it will report an internal error.  The following
    tries to improve the situation by explicitely calling into the
    verifier from the parser and intructing it to not ICE but instead
    zap the parsed body after an error is discovered.

            PR c/107305
            PR c/107306
    gcc/c/
            * gimple-parser.cc (c_parser_parse_gimple_body): Verify
            the parsed IL and zap the body on error.

    gcc/
            * tree-cfg.h (verify_gimple_in_seq): Add parameter to
            indicate whether to emit an ICE.  Add return value.
            (verify_gimple_in_cfg): Likewise.
            * tree-cfg.cc (verify_gimple_in_seq): Likewise.
            (verify_gimple_in_cfg): Likewise.

    gcc/testsuite/
            * gcc.dg/gimplefe-error-15.c: New testcase.=