[Bug tree-optimization/87915] New: emit warning if (explicit) vectorization failed

[hoganmeier at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87915

            Bug ID: 87915
           Summary: emit warning if (explicit) vectorization failed
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hoganmeier at gmail dot com
  Target Milestone: ---

When using #pragma omp simd for explicit vectorization shouldn't it warn if
vectorization failed?

clang has -Wpass-failed for that:
http://lists.llvm.org/pipermail/cfe-dev/2015-July/044226.html