[Bug tree-optimization/110829] New: [13/14 Regression] FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;" 1

[Bug tree-optimization/110829] New: [13/14 Regression] FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;" 1

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110829

            Bug ID: 110829
           Summary: [13/14 Regression] FAIL: gcc.dg/pr56837.c
                    scan-tree-dump-times optimized "memset ..c, 68,
                    16384.;"  1
           Product: gcc
           Version: 13.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

After r13-1762-gf9d4c3b45c5ed5 the 

_Complex double c[N];

void
fc (void)
{
  int i;
  for (i = 0; i < N; i++)
    c[i] = 747708026454360457216.0 + 747708026454360457216.0i;
}

part of the testcase fails to be recognized as memset since we lower
the complex store to a component-wise store to enable vectorization.

loop distribution doesn't yet handle merging stores as part of
its pattern recognition for memset, memcpy or memmove.

[Bug tree-optimization/110829] [13/14 Regression] FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;" 1

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110829

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |13.3
           Keywords|                            |xfail

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I'm XFAILing the (sub-)testcase.

[Bug tree-optimization/110829] [13/14 Regression] FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;" 1

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110829

--- Comment #2 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:41482832ad0aeaa0e4ae2f8d2beff17023cd00bf

commit r14-2816-g41482832ad0aeaa0e4ae2f8d2beff17023cd00bf
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Jul 27 12:34:34 2023 +0200

    XFAIL parts broken deliberately by r13-1762-gf9d4c3b45c5ed5

    The following XFAILs recognizing a complex store as memset.

            PR tree-optimization/110829
            * gcc.dg/pr56837.c: XFAIL part of the testcase.

[Bug tree-optimization/110829] [13/14 Regression] FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;" 1

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110829

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:00c806ea70406e6e67170e51095533dcb8a20cf8

commit r13-7613-g00c806ea70406e6e67170e51095533dcb8a20cf8
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Jul 27 12:34:34 2023 +0200

    XFAIL parts broken deliberately by r13-1762-gf9d4c3b45c5ed5

    The following XFAILs recognizing a complex store as memset.

            PR tree-optimization/110829
            * gcc.dg/pr56837.c: XFAIL part of the testcase.

    (cherry picked from commit 41482832ad0aeaa0e4ae2f8d2beff17023cd00bf)

[Bug tree-optimization/110829] [13/14 Regression] FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;" 1

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110829

Jeffrey A. Law <law at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |law at gcc dot gnu.org
           Priority|P3                          |P2