[Bug target/93913] New: [10 regression] r10-6762 breaks gcc.target/powerpc/fold-vec-st-*.c test cases

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93913

            Bug ID: 93913
           Summary: [10 regression] r10-6762 breaks
                    gcc.target/powerpc/fold-vec-st-*.c test cases
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:e6f24f824beb8ba6805702e287bbd6153b472488, r10-6762 broke a few tests
apparently only on power 9:

FAIL: gcc.target/powerpc/fold-vec-st-char.c scan-assembler-times \\\\mstvx\\\\M
14
FAIL: gcc.target/powerpc/fold-vec-st-float.c scan-assembler-times
\\\\mstvx\\\\M 4
FAIL: gcc.target/powerpc/fold-vec-st-int.c scan-assembler-times \\\\mstvx\\\\M
14
FAIL: gcc.target/powerpc/fold-vec-st-short.c scan-assembler-times
\\\\mstvx\\\\M 14

Now also on gcc-9 when this change was backported.