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Subject: [Bug sanitizer/104449] [9/10 Regression] ICE: verify_gimple failed:
 dead statement in EH table with -fexceptions -fsanitize=address
 -fstack-check=generic
Date: Tue, 10 May 2022 08:23:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104449

--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:f5b1fcfd69c7a09f661ebec1341f3df34aec4ead

commit r10-10679-gf5b1fcfd69c7a09f661ebec1341f3df34aec4ead
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Sat Feb 12 19:17:44 2022 +0100

    asan: Fix up address sanitizer instrumentation of __builtin_alloca* if =
it
can throw [PR104449]

    With -fstack-check* __builtin_alloca* can throw and the asan
    instrumentation of this builtin wasn't prepared for that case.
    The following patch fixes that by replacing the builtin with the
    replacement builtin and emitting any further insns on the fallthru
    edge.

    I haven't touched the hwasan code which most likely suffers from the
    same problem.

    2022-02-12  Jakub Jelinek  <jakub@redhat.com>

            PR sanitizer/104449
            * asan.c: Include tree-eh.h.
            (handle_builtin_alloca): Handle the case when __builtin_alloca =
or
            __builtin_alloca_with_align can throw.

            * gcc.dg/asan/pr104449.c: New test.
            * g++.dg/asan/pr104449.C: New test.

    (cherry picked from commit f0c7367b8802c47efaad87b1f2126fe6350d8b47)=