[PATCH 3/7] [og10] Revert gimplify.c parts of "Fix template case of non-static member access inside member functions"

[Julian Brown <julian@codesourcery.com>]

With the "rework indirect struct handling" patch later in this series,
some parts of this earlier patch (by Chung-Lin) become unnecessary.
This patch reverts those bits.

2021-05-11  Julian Brown  <julian@codesourcery.com>

gcc/
	* gimplify.c (gimplify_scan_omp_clauses): Don't strip nops in indir_p
	case. Don't add map(*pointer_to_struct) mappings to struct_deref_set.
---
 gcc/gimplify.c | 19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index ad192b27208..0674d882861 100644
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -9574,7 +9574,6 @@ gimplify_scan_omp_clauses (tree *list_p, gimple_seq *pre_p,
 			{
 			  indir_p = true;
 			  decl = TREE_OPERAND (decl, 0);
-			  STRIP_NOPS (decl);
 			}
 		      if (TREE_CODE (decl) == INDIRECT_REF
 			  && DECL_P (TREE_OPERAND (decl, 0))
@@ -9747,24 +9746,6 @@ gimplify_scan_omp_clauses (tree *list_p, gimple_seq *pre_p,
 		  break;
 		}
 
-	      /* If this was of the form map(*pointer_to_struct), then the
-		 'pointer_to_struct' DECL should be considered deref'ed.  */
-	      if ((OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_ALLOC
-		   || GOMP_MAP_COPY_TO_P (OMP_CLAUSE_MAP_KIND (c))
-		   || GOMP_MAP_COPY_FROM_P (OMP_CLAUSE_MAP_KIND (c)))
-		  && INDIRECT_REF_P (orig_decl)
-		  && DECL_P (TREE_OPERAND (orig_decl, 0))
-		  && TREE_CODE (TREE_TYPE (orig_decl)) == RECORD_TYPE)
-		{
-		  tree ptr = TREE_OPERAND (orig_decl, 0);
-		  if (!struct_deref_set || !struct_deref_set->contains (ptr))
-		    {
-		      if (!struct_deref_set)
-			struct_deref_set = new hash_set<tree> ();
-		      struct_deref_set->add (ptr);
-		    }
-		}
-
 	      if (!remove
 		  && OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_ALWAYS_POINTER
 		  && OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_ATTACH_DETACH
-- 
2.29.2