Merge branch 'master' into devel/sphinx

5 files changed, 17 insertions, 95 deletions

diff --git a/gcc/go/ChangeLog b/gcc/go/ChangeLog
index b6ec83c..60ebb89 100644
--- a/gcc/go/ChangeLog
+++ b/gcc/go/ChangeLog
@@ -1,3 +1,10 @@
+2021-06-29  Ian Lance Taylor  <iant@golang.org>
+
+	* go-gcc.cc (Gcc_backend::static_chain_variable): Set
+	DECL_NAMELESS on the new decl.
+	(Gcc_backend::temporary_variable): Likewise.
+	(Gcc_backend::function): Set DECL_NAMELESS on the result decl.
+
 2021-05-27  Ian Lance Taylor  <iant@golang.org>
 
 	* gccgo.texi (Function Names): Don't HTML quote ampersand.
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc
index 41f309e..f812796 100644
--- a/gcc/go/go-gcc.cc
+++ b/gcc/go/go-gcc.cc
@@ -2853,6 +2853,7 @@ Gcc_backend::static_chain_variable(Bfunction* function, const std::string& name,
   TREE_USED(decl) = 1;
   DECL_ARTIFICIAL(decl) = 1;
   DECL_IGNORED_P(decl) = 1;
+  DECL_NAMELESS(decl) = 1;
   TREE_READONLY(decl) = 1;
 
   struct function *f = DECL_STRUCT_FUNCTION(fndecl);
@@ -2912,6 +2913,7 @@ Gcc_backend::temporary_variable(Bfunction* function, Bblock* bblock,
 		       type_tree);
       DECL_ARTIFICIAL(var) = 1;
       DECL_IGNORED_P(var) = 1;
+      DECL_NAMELESS(var) = 1;
       TREE_USED(var) = 1;
       DECL_CONTEXT(var) = decl;
 
@@ -3290,6 +3292,7 @@ Gcc_backend::function(Btype* fntype, const std::string& name,
           build_decl(location.gcc_location(), RESULT_DECL, NULL_TREE, restype);
       DECL_ARTIFICIAL(resdecl) = 1;
       DECL_IGNORED_P(resdecl) = 1;
+      DECL_NAMELESS(resdecl) = 1;
       DECL_CONTEXT(resdecl) = decl;
       DECL_RESULT(decl) = resdecl;
     }
diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index f16fb9f..ab1384d 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-bcafcb3c39530bb325514d6377747eb3127d1a03
+01cb2b5e69a2d08ef3cc1ea023c22ed9b79f5114
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc
index 5d45e4b..a0472ac 100644
--- a/gcc/go/gofrontend/expressions.cc
+++ b/gcc/go/gofrontend/expressions.cc
@@ -15147,44 +15147,6 @@ Struct_construction_expression::do_copy()
   return ret;
 }
 
-// Flatten a struct construction expression.  Store the values into
-// temporaries in case they need interface conversion.
-
-Expression*
-Struct_construction_expression::do_flatten(Gogo*, Named_object*,
-					   Statement_inserter* inserter)
-{
-  if (this->vals() == NULL)
-    return this;
-
-  // If this is a constant struct, we don't need temporaries.
-  if (this->is_constant_struct() || this->is_static_initializer())
-    return this;
-
-  Location loc = this->location();
-  for (Expression_list::iterator pv = this->vals()->begin();
-       pv != this->vals()->end();
-       ++pv)
-    {
-      if (*pv != NULL)
-	{
-          if ((*pv)->is_error_expression() || (*pv)->type()->is_error_type())
-            {
-              go_assert(saw_errors());
-              return Expression::make_error(loc);
-            }
-	  if (!(*pv)->is_multi_eval_safe())
-	    {
-	      Temporary_statement* temp =
-		Statement::make_temporary(NULL, *pv, loc);
-	      inserter->insert(temp);
-	      *pv = Expression::make_temporary_reference(temp, loc);
-	    }
-	}
-    }
-  return this;
-}
-
 // Make implicit type conversions explicit.
 
 void
@@ -15447,50 +15409,6 @@ Array_construction_expression::do_check_types(Gogo*)
     }
 }
 
-// Flatten an array construction expression.  Store the values into
-// temporaries in case they need interface conversion.
-
-Expression*
-Array_construction_expression::do_flatten(Gogo*, Named_object*,
-					   Statement_inserter* inserter)
-{
-  if (this->is_error_expression())
-    {
-      go_assert(saw_errors());
-      return this;
-    }
-
-  if (this->vals() == NULL)
-    return this;
-
-  // If this is a constant array, we don't need temporaries.
-  if (this->is_constant_array() || this->is_static_initializer())
-    return this;
-
-  Location loc = this->location();
-  for (Expression_list::iterator pv = this->vals()->begin();
-       pv != this->vals()->end();
-       ++pv)
-    {
-      if (*pv != NULL)
-	{
-          if ((*pv)->is_error_expression() || (*pv)->type()->is_error_type())
-            {
-              go_assert(saw_errors());
-              return Expression::make_error(loc);
-            }
-	  if (!(*pv)->is_multi_eval_safe())
-	    {
-	      Temporary_statement* temp =
-		Statement::make_temporary(NULL, *pv, loc);
-	      inserter->insert(temp);
-	      *pv = Expression::make_temporary_reference(temp, loc);
-	    }
-	}
-    }
-  return this;
-}
-
 // Make implicit type conversions explicit.
 
 void
@@ -15759,14 +15677,14 @@ Slice_construction_expression::create_array_val()
 // the new temp statement.
 
 Expression*
-Slice_construction_expression::do_flatten(Gogo* gogo, Named_object* no,
+Slice_construction_expression::do_flatten(Gogo*, Named_object*,
                                           Statement_inserter* inserter)
 {
   if (this->type()->array_type() == NULL)
-    return NULL;
-
-  // Base class flattening first
-  this->Array_construction_expression::do_flatten(gogo, no, inserter);
+    {
+      go_assert(saw_errors());
+      return Expression::make_error(this->location());
+    }
 
   // Create a stack-allocated storage temp if storage won't escape
   if (!this->storage_escapes_
@@ -15775,7 +15693,7 @@ Slice_construction_expression::do_flatten(Gogo* gogo, Named_object* no,
     {
       Location loc = this->location();
       this->array_val_ = this->create_array_val();
-      go_assert(this->array_val_);
+      go_assert(this->array_val_ != NULL);
       Temporary_statement* temp =
           Statement::make_temporary(this->valtype_, this->array_val_, loc);
       inserter->insert(temp);
diff --git a/gcc/go/gofrontend/expressions.h b/gcc/go/gofrontend/expressions.h
index e3747cc..57c974d 100644
--- a/gcc/go/gofrontend/expressions.h
+++ b/gcc/go/gofrontend/expressions.h
@@ -3806,9 +3806,6 @@ class Struct_construction_expression : public Expression,
   Expression*
   do_copy();
 
-  Expression*
-  do_flatten(Gogo*, Named_object*, Statement_inserter*);
-
   Bexpression*
   do_get_backend(Translate_context*);
 
@@ -3881,9 +3878,6 @@ protected:
   indexes()
   { return this->indexes_; }
 
-  Expression*
-  do_flatten(Gogo*, Named_object*, Statement_inserter*);
-
   // Get the backend constructor for the array values.
   Bexpression*
   get_constructor(Translate_context* context, Btype* btype);