[patch] openmp test: Add dg-require-effective-target fopenmp to g++ test using -fopenmp

[Olivier Hainque]

Hello,

This prevents failures of a test using -fopenmp on
targets not advertising support for that feature (VxWorks
in my case).

I have also verified that the test still runs and passes
on a native x86_64-linux configuration.

Ok to commit ?

Thanks in advance!

With Kind Regards,

Olivier

2020-11-02  Olivier Hainque  <hain...@adacore.com>
    
testsuite/
        * g++.dg/pr80481.C: Add dg-require-effective-target fopenmp.


diff --git a/gcc/testsuite/g++.dg/pr80481.C b/gcc/testsuite/g++.dg/pr80481.C
index 78c463b8e3b5..33f75b27653f 100644
--- a/gcc/testsuite/g++.dg/pr80481.C
+++ b/gcc/testsuite/g++.dg/pr80481.C
@@ -1,4 +1,5 @@
 // { dg-do compile { target { i?86-*-* x86_64-*-* }  && { ! *-*-solaris* } } }
+// { dg-require-effective-target fopenmp }
 // { dg-options "-Ofast -funroll-loops -fopenmp -march=knl" }
 // Disabling epilogues until we find a better way to deal with scans.
 // { dg-additional-options "--param vect-epilogues-nomask=0" }
-- 
2.17.1