Handle global loop counters in c/c++ oacc kernels
gcc/
* passes.def: Add pass_fre after pass_ch_oacc_kernels.
gcc/testsuite/
* c-c++-common/goacc/kernels-counter-vars-function-scope.c: New test.
* c-c++-common/goacc/kernels-one-counter-var.c: New test.
* g++.dg/ipa/devirt-37.C: Update for new pass_fre.
* g++.dg/ipa/devirt-40.C: Likewise.
* g++.dg/tree-ssa/pr61034.C: Likewise.
* gcc.dg/ipa/ipa-pta-13.c: Likewise.
* gcc.dg/ipa/ipa-pta-3.c: Likewise.
* gcc.dg/ipa/ipa-pta-4.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gomp-4_0-branch@222287 138bc75d-0d04-0410-961f-82ee72b054a4