[Bug target/108810] New: gcc.target/powerpc/fold-vec-extract-double.p9.c fails on power 9 BE

[Bug target/108810] New: gcc.target/powerpc/fold-vec-extract-double.p9.c fails on power 9 BE

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108810

            Bug ID: 108810
           Summary: gcc.target/powerpc/fold-vec-extract-double.p9.c fails
                    on power 9 BE
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

make  -k check-gcc
RUNTESTFLAGS="powerpc.exp=gcc.target/powerpc/fold-vec-extract-double.p9.c"
FAIL: gcc.target/powerpc/fold-vec-extract-double.p9.c scan-assembler-times
\\mxxlor\\M 2
# of expected passes            4
# of unexpected failures        1

This fails on power 9 BE (only) and fails for trunk as well as gcc 12, 11, and
10.

[Bug testsuite/108810] gcc.target/powerpc/fold-vec-extract-double.p9.c fails on power 9 BE

[linkw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108810

Kewen Lin <linkw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-02-17
             Status|UNCONFIRMED                 |NEW
          Component|target                      |testsuite
                 CC|                            |linkw at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Kewen Lin <linkw at gcc dot gnu.org> ---
This is an test case issue:

double
testd_cst (vector double vd2)
{
  return vec_extract (vd2, 1);
}

got xxlor on LE but xxpermdi on BE.

The scan insn xxlor is for the high order element, the index is 0 on BE and 1
on LE.

The below diff can fix it:

diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-extract-double.p9.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-extract-double.p9.c
index 6c515035d1a..100f680fd02 100644
--- a/gcc/testsuite/gcc.target/powerpc/fold-vec-extract-double.p9.c
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-extract-double.p9.c
@@ -18,9 +18,15 @@ testd_var (vector double vd2, signed int si)
   return vec_extract (vd2, si);
 }

+#ifdef __BIG_ENDIAN__
+#define HIGH_ORDER_ELEMENT_INDEX 0
+#else
+#define HIGH_ORDER_ELEMENT_INDEX 1
+#endif
+
 double
 testd_cst (vector double vd2)
 {
-  return vec_extract (vd2, 1);
+  return vec_extract (vd2, HIGH_ORDER_ELEMENT_INDEX);
 }

[Bug testsuite/108810] gcc.target/powerpc/fold-vec-extract-double.p9.c fails on power 9 BE

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108810

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kewen Lin <linkw@gcc.gnu.org>:

https://gcc.gnu.org/g:4bcdc362e90a07977f85d79c82fd7dcd20d80ac9

commit r13-6539-g4bcdc362e90a07977f85d79c82fd7dcd20d80ac9
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Wed Mar 8 00:56:31 2023 -0600

    testsuite: Adjust fold-vec-extract-double.p9.c for powerpc BE [PR108810]

    On BE, the extracted index for the leftmost element is 0
    rather than 1, adjust the test case accordingly.

            PR testsuite/108810

    gcc/testsuite/ChangeLog:

            * gcc.target/powerpc/fold-vec-extract-double.p9.c (testd_cst):
Adjust
            the extracted index for BE.

[Bug testsuite/108810] gcc.target/powerpc/fold-vec-extract-double.p9.c fails on power 9 BE

[linkw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108810

Kewen Lin <linkw at gcc dot gnu.org> changed:

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

--- Comment #3 from Kewen Lin <linkw at gcc dot gnu.org> ---
Should be fixed on trunk.

[Bug testsuite/108810] gcc.target/powerpc/fold-vec-extract-double.p9.c fails on power 9 BE

[linkw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108810

Kewen Lin <linkw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |13.0