[Bug c++/113452] New: [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c FAILs

[Bug c++/113452] New: [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c FAILs

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113452

            Bug ID: 113452
           Summary: [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c
                    FAILs
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
  Target Milestone: ---
            Target: i386-pc-solaris2.11, i686-pc-linux-gnu

Since 20231226, the 32-bit gcc.target/i386/sse4_1-stv-1.c test FAILs on
Solaris/x86 and Linux/x86:

+FAIL: gcc.target/i386/sse4_1-stv-1.c scan-assembler-not pxor

[Bug c++/113452] [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c FAILs

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113452

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |14.0

[Bug c++/113452] [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c FAILs

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113452

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |tnfchris at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r14-6822-g01f4251b8775c832a92d55e2df57c9ac72eaceef

[Bug testsuite/113452] [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c FAILs

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113452

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Perhaps
2024-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR testsuite/113452
        * gcc.target/i386/sse4_1-stv-1.c: Add -fno-tree-vectorize to
        dg-options.

--- gcc/testsuite/gcc.target/i386/sse4_1-stv-1.c.jj     2022-05-31
11:33:51.603250042 +0200
+++ gcc/testsuite/gcc.target/i386/sse4_1-stv-1.c        2024-01-17
17:46:21.999689350 +0100
@@ -1,5 +1,5 @@
 /* { dg-do compile { target ia32 } } */
-/* { dg-options "-O2 -msse4.1 -mstv -mno-stackrealign" } */
+/* { dg-options "-O2 -msse4.1 -mstv -mno-stackrealign -fno-tree-vectorize" }
*/
 long long a[1024];
 long long b[1024];

given that the test tests RTL behavior and wasn't written to expect
vectorization of the loop.

[Bug testsuite/113452] [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c FAILs

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113452

--- Comment #3 from GCC 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:b032f4b7da56a225a0a14d40da2d47a6fcbab3f3

commit r14-8209-gb032f4b7da56a225a0a14d40da2d47a6fcbab3f3
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Thu Jan 18 08:46:15 2024 +0100

    testsuite: Fix up gcc.target/i386/sse4_1-stv-1.c test [PR113452]

    From what I can see, this test has been written for a backend fix and
    assumes the loop isn't vectorized (at least, it wasn't when the test was
    added, it contains an early exit), but that is no longer true and because
    of the vectorization it now contains an instruction which the test scans
    for not being present.

    I think we should just disable vectorization here.

    2024-01-18  Jakub Jelinek  <jakub@redhat.com>

            PR testsuite/113452
            * gcc.target/i386/sse4_1-stv-1.c: Add -fno-tree-vectorize to
            dg-options.

[Bug testsuite/113452] [14 regression] 32-bit gcc.target/i386/sse4_1-stv-1.c FAILs

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113452

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.