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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/103691] [12 Regression] ICE in get_array_ctor_element_at_index, at fold-const.c:13314 since r12-4694-gcb153222404e2e14
Date: Wed, 05 Jan 2022 09:46:03 +0000 [thread overview]
Message-ID: <bug-103691-4-vu4haWkrAm@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-103691-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103691
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:
https://gcc.gnu.org/g:a4c2e62d60f47d47cdd94951e16b0de50495cdab
commit r12-6221-ga4c2e62d60f47d47cdd94951e16b0de50495cdab
Author: Jakub Jelinek <jakub@redhat.com>
Date: Wed Jan 5 10:45:26 2022 +0100
gimple-fold: Remove incorrect folding of debug stmts [PR103691]
For ADDR_EXPR gimple_debug_bind_get_value fold_stmt_1 uses
maybe_canonicalize_mem_ref_addr earlier and I think that should
resolve the concerns raised in PR52329. But folding ADDR_EXPR
operand using maybe_fold_reference and then taking address of that
looks like an invalid transformation, it can transform
# DEBUG D.4293 => &a[0]
into
# DEBUG D.4293 => &2.0e+0
etc., all we want to allow are the lhs folding of the operand which
maybe_fold_reference no longer does since r12-21-g0bf8cd9d5e8ac.
2022-01-05 Jakub Jelinek <jakub@redhat.com>
PR fortran/103691
* gimple-fold.c (fold_stmt_1): Don't call maybe_fold_reference
for DEBUG stmts with ADDR_EXPR gimple_debug_bind_get_value,
it can do unwanted rhs folding like &a[0] into &2.0 etc.
* gfortran.dg/pr103691.f90: New test.
next prev parent reply other threads:[~2022-01-05 9:46 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-13 19:51 [Bug fortran/103691] New: [12 Regression] ICE in get_array_ctor_element_at_index, at fold-const.c:13314 gscfq@t-online.de
2021-12-14 10:05 ` [Bug fortran/103691] [12 Regression] ICE in get_array_ctor_element_at_index, at fold-const.c:13314 since r12-4694-gcb153222404e2e14 marxin at gcc dot gnu.org
2021-12-14 15:43 ` amacleod at redhat dot com
2022-01-04 11:07 ` rguenth at gcc dot gnu.org
2022-01-04 11:32 ` jakub at gcc dot gnu.org
2022-01-04 12:26 ` rguenth at gcc dot gnu.org
2022-01-04 12:28 ` jakub at gcc dot gnu.org
2022-01-05 9:46 ` cvs-commit at gcc dot gnu.org [this message]
2022-01-05 9:49 ` jakub at gcc dot gnu.org
2022-03-24 15:23 ` jakub at gcc dot gnu.org
2022-03-25 10:23 ` cvs-commit at gcc dot gnu.org
2022-03-25 10:23 ` jakub at gcc dot gnu.org
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