https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106682

            Bug ID: 106682
           Summary: Powerpc test
                    gcc.target/powerpc/pr86731-fwrapv-longlong.c fails on
                    power8, passes on power9/power10
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: meissner at gcc dot gnu.org
  Target Milestone: ---

I was doing builds on a power10 for patch submission, and I noticed the test
pr86731-fwrapv-longlong.c fails when the target is power8, but it passes when
the target is power9 or power10.

Here is the log file from power8:
Executing on host: /home/meissner/fsf-build-ppc64le/work098-power8/gcc/xgcc
-B/home/meissner/fsf-build-ppc64le/work098-power8/gcc/ 
/home/meissner/fsf-src/work098/gcc/testsuite/gcc.target/powerpc/pr86731-fwrapv-longlong.c
   -fdiagnostics-plain-output  -maltivec -O3 -fwrapv -mpower8-vector
-ffat-lto-objects -fno-ident -S -o pr86731-fwrapv-longlong.s    (timeout = 300)
spawn -ignore SIGHUP /home/meissner/fsf-build-ppc64le/work098-power8/gcc/xgcc
-B/home/meissner/fsf-build-ppc64le/work098-power8/gcc/
/home/meissner/fsf-src/work098/gcc/testsuite/gcc.target/powerpc/pr86731-fwrapv-longlong.c
-fdiagnostics-plain-output -maltivec -O3 -fwrapv -mpower8-vector
-ffat-lto-objects -fno-ident -S -o pr86731-fwrapv-longlong.s
PASS: gcc.target/powerpc/pr86731-fwrapv-longlong.c (test for excess errors)
PASS: gcc.target/powerpc/pr86731-fwrapv-longlong.c scan-assembler-times
\\mvspltis[bhw]\\M 0
PASS: gcc.target/powerpc/pr86731-fwrapv-longlong.c scan-assembler-times
\\mvsl[bhwd]\\M 0
gcc.target/powerpc/pr86731-fwrapv-longlong.c:
\\mp?lxv\\M|\\mlxv\\M|\\mlxvd2x\\M|\\mxxspltidp\\M found 0 times

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