re PR middle-end/49675 (ICE (segfault) with -finstrument-functions)

	PR middle-end/49675
	* tree.c (build_common_builtin_nodes): Register
	__builtin_return_address, __cyg_profile_func_enter
	and __cyg_profile_func_exit.

	* gfortran.dg/pr49675.f90: New test.

From-SVN: r176417

1 files changed, 25 insertions, 0 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index 10f50de..8c44851 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -9546,6 +9546,31 @@ build_common_builtin_nodes (void)
 			 ? "_Unwind_SjLj_Resume" : "_Unwind_Resume"),
 			ECF_NORETURN);
 
+  if (built_in_decls[BUILT_IN_RETURN_ADDRESS] == NULL_TREE)
+    {
+      ftype = build_function_type_list (ptr_type_node, integer_type_node,
+					NULL_TREE);
+      local_define_builtin ("__builtin_return_address", ftype,
+			    BUILT_IN_RETURN_ADDRESS,
+			    "__builtin_return_address",
+			    ECF_NOTHROW);
+    }
+
+  if (built_in_decls[BUILT_IN_PROFILE_FUNC_ENTER] == NULL_TREE
+      || built_in_decls[BUILT_IN_PROFILE_FUNC_EXIT] == NULL_TREE)
+    {
+      ftype = build_function_type_list (void_type_node, ptr_type_node,
+					ptr_type_node, NULL_TREE);
+      if (built_in_decls[BUILT_IN_PROFILE_FUNC_ENTER] == NULL_TREE)
+	local_define_builtin ("__cyg_profile_func_enter", ftype,
+			      BUILT_IN_PROFILE_FUNC_ENTER,
+			      "__cyg_profile_func_enter", 0);
+      if (built_in_decls[BUILT_IN_PROFILE_FUNC_EXIT] == NULL_TREE)
+	local_define_builtin ("__cyg_profile_func_exit", ftype,
+			      BUILT_IN_PROFILE_FUNC_EXIT,
+			      "__cyg_profile_func_exit", 0);
+    }
+
   /* The exception object and filter values from the runtime.  The argument
      must be zero before exception lowering, i.e. from the front end.  After
      exception lowering, it will be the region number for the exception