Merge commit 'a0c06cc27d2146b7d86758ffa236516c6143d62c' into devel/omp/gcc-9

This merges all patches after releases/gcc-9.1.0 until and including
to the commit belonging to the tag 'releases/gcc-9.2.0'. That's
r9-7613-ga0c06cc27d2146b7d86758ffa236516c6143d62c on the releases/gcc-9
branch.

diff --cc gcc/c-family/c-omp.c
Simple merge

diff --cc gcc/c/c-parser.c
Simple merge

diff --cc gcc/c/c-typeck.c
Simple merge

diff --cc gcc/config.gcc
Simple merge

diff --cc gcc/config/gcn/gcn-run.c
index 65c5bc30fb7362b94ee72f773d0de8debcd3a2eb,d3def1369c71ea02d2f602bc10799e6a43550bc3..cf4870ff4be72cd1a4298f4bc535ae11a3573743
--- 1/gcc/config/gcn/gcn-run.c
--- 2/gcc/config/gcn/gcn-run.c
+++ b/gcc/config/gcn/gcn-run.c
@@@ -880,12 -827,12 +880,15 @@@ main (int argc, char *argv[]
    unsigned int return_value =
      (unsigned int) kernargs->output_data.return_value;
  
 +  /* Run destructors on the GPU.  */
 +  run (fini_array_kernel, kernargs);
 +
    unsigned int upper = (return_value & ~0xffff) >> 16;
    if (upper == 0xcafe)
-     printf ("Kernel exit value was never set\n");
+     {
+       printf ("Kernel exit value was never set\n");
+       return_value = 0xff;
+     }
    else if (upper == 0xffff)
      ; /* Set by exit.  */
    else if (upper == 0)

diff --cc gcc/config/gcn/gcn.c
Simple merge

diff --cc gcc/config/gcn/gcn.md
Simple merge

diff --cc gcc/config/i386/i386.c
Simple merge

diff --cc gcc/config/nvptx/nvptx.c
Simple merge

diff --cc gcc/cp/constexpr.c
Simple merge

diff --cc gcc/cp/decl.c
Simple merge

diff --cc gcc/cp/parser.c
Simple merge

diff --cc gcc/cp/pt.c
Simple merge

diff --cc gcc/cp/semantics.c
Simple merge

diff --cc gcc/doc/invoke.texi
Simple merge

diff --cc gcc/fortran/dump-parse-tree.c
Simple merge

diff --cc gcc/fortran/gfortran.h
Simple merge

diff --cc gcc/fortran/gfortran.texi
Simple merge

diff --cc gcc/fortran/intrinsic.texi
Simple merge

diff --cc gcc/fortran/lang.opt
Simple merge

diff --cc gcc/fortran/match.c
Simple merge

diff --cc gcc/fortran/parse.c
Simple merge

diff --cc gcc/fortran/resolve.c
Simple merge

diff --cc gcc/fortran/trans-array.c
Simple merge

diff --cc gcc/fortran/trans-decl.c
Simple merge

diff --cc gcc/fortran/trans-expr.c
Simple merge

diff --cc gcc/fortran/trans-stmt.c
Simple merge

diff --cc gcc/fortran/trans.c
Simple merge

diff --cc gcc/fortran/trans.h
Simple merge

diff --cc gcc/gimplify.c
index d95ad5d4baa3d2fdcd6a24e481357610ff99d0c9,98408b981dcc3a1c1f2e38af8b8985616cf4c4c4..3670849528f6c991cbedb35d7173d0b42182d9df
--- 1/gcc/gimplify.c
--- 2/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@@ -230,13 -210,8 +230,14 @@@ struct gimplify_omp_ct
    bool combined_loop;
    bool distribute;
    bool target_firstprivatize_array_bases;
+   bool add_safelen1;
    int defaultmap[4];
 +  hash_map<tree, oacc_array_mapping_info> *decl_data_clause;
 +};
 +
 +struct privatize_reduction
 +{
 +  tree ref_var, local_var;
  };
  
  static struct gimplify_ctx *gimplify_ctxp;

diff --cc gcc/omp-expand.c
Simple merge

diff --cc gcc/omp-low.c
Simple merge

diff --cc gcc/tree-core.h
Simple merge

diff --cc gcc/tree-pass.h
Simple merge

diff --cc gcc/tree-ssa-structalias.c
Simple merge

diff --cc gcc/tree-vrp.c
Simple merge

diff --cc gcc/tree.h
Simple merge

diff --cc libgfortran/configure
Simple merge

diff --cc libgfortran/configure.ac
Simple merge

diff --cc libgomp/plugin/plugin-hsa.c
Simple merge

diff --cc libstdc++-v3/acinclude.m4
Simple merge

diff --cc libstdc++-v3/configure
Simple merge