[Bug target/70011] New: [6 regression] test case gcc.dg/vect/costmodel/ppc/costmodel-fast-math-vect-pr29925.c fails

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70011

            Bug ID: 70011
           Summary: [6 regression] test case
                    gcc.dg/vect/costmodel/ppc/costmodel-fast-math-vect-pr2
                    9925.c fails
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at linux dot vnet.ibm.com
  Target Milestone: ---

Executing on host: /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-fast-math-vect-pr29925.c
  -fno-diagnostics-show-caret -fdiagnostics-color=never   -O2 -ftree-vectorize
-fvect-cost-model=dynamic -fno-common -maltivec -fdump-tree-vect-details
-ffast-math  -lm    -o ./costmodel-fast-math-vect-pr29925.exe    (timeout =
300)
spawn /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-fast-math-vect-pr29925.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -ftree-vectorize
-fvect-cost-model=dynamic -fno-common -maltivec -fdump-tree-vect-details
-ffast-math -lm -o ./costmodel-fast-math-vect-pr29925.exe
PASS: gcc.dg/vect/costmodel/ppc/costmodel-fast-math-vect-pr29925.c (test for
excess errors)
Setting LD_LIBRARY_PATH to
:/home/seurer/gcc/build/gcc-test2/gcc:/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libatomic/.libs::/home/seurer/gcc/build/gcc-test2/gcc:/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libatomic/.libs:/home/wschmidt/gcc/install/gcc-5_1/lib64
spawn [open ...]
PASS: gcc.dg/vect/costmodel/ppc/costmodel-fast-math-vect-pr29925.c execution
test
FAIL: gcc.dg/vect/costmodel/ppc/costmodel-fast-math-vect-pr29925.c
scan-tree-dump-times vect "vectorization not profitable" 1

This has been failing since at least December 2015.  It fails on only LE and
only for gcc 6.