re PR middle-end/78333 (always-inline gnu-inline functions break -finstrument-functions)

2016-11-16  Richard Biener  <rguenther@suse.de>

	PR middle-end/78333
	* gimplify.c (gimplify_function_tree): Do not instrument
	GNU extern inline functions.

	* gcc.dg/pr78333.c: New testcase.

From-SVN: r242487

gcc/ChangeLog

+2016-11-16  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/78333
+	* gimplify.c (gimplify_function_tree): Do not instrument
+	GNU extern inline functions.
+
 2016-11-16  Martin Liska  <mliska@suse.cz>
 
 	PR sanitizer/78270

gcc/gimplify.c

@@ -12547,6 +12547,10 @@ gimplify_function_tree (tree fndecl)
   /* ??? Add some way to ignore exceptions for this TFE.  */
   if (flag_instrument_function_entry_exit
       && !DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (fndecl)
+      /* Do not instrument extern inline functions.  */
+      && !(DECL_DECLARED_INLINE_P (fndecl)
+	   && DECL_EXTERNAL (fndecl)
+	   && DECL_DISREGARD_INLINE_LIMITS (fndecl))
       && !flag_instrument_functions_exclude_p (fndecl))
     {
       tree x;

gcc/testsuite/ChangeLog

+2016-11-16  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/78333
+	* gcc.dg/pr78333.c: New testcase.
+
 2016-11-16  Martin Liska  <mliska@suse.cz>
 
 	PR sanitizer/78270

gcc/testsuite/gcc.dg/pr78333.c

+/* { dg-do link } */
+/* { dg-options "-finstrument-functions" } */
+
+extern inline __attribute__((gnu_inline, always_inline)) int foo () { }
+int main()
+{
+  foo ();
+  return 0;
+}