michael@0: 2012-12-12  Jakub Jelinek  <jakub@redhat.com>
michael@0: 
michael@0: 	PR gcov-profile/55650
michael@0: 	* coverage.c (coverage_obj_init): Return false if no functions
michael@0: 	are being emitted.
michael@0: 
michael@0: 	* g++.dg/other/pr55650.C: New test.
michael@0: 	* g++.dg/other/pr55650.cc: New file.
michael@0: 
michael@0: --- gcc/coverage.c.jj	2012-11-19 14:41:24.000000000 +0100
michael@0: +++ gcc/coverage.c	2012-12-12 08:54:35.005180211 +0100
michael@0: @@ -999,6 +999,9 @@ coverage_obj_init (void)
michael@0:        /* The function is not being emitted, remove from list.  */
michael@0:        *fn_prev = fn->next;
michael@0:  
michael@0: +  if (functions_head == NULL)
michael@0: +    return false;
michael@0: +
michael@0:    for (ix = 0; ix != GCOV_COUNTERS; ix++)
michael@0:      if ((1u << ix) & prg_ctr_mask)
michael@0:        n_counters++;
michael@0: --- gcc/testsuite/g++.dg/other/pr55650.C.jj	2012-12-12 09:03:53.342876593 +0100
michael@0: +++ gcc/testsuite/g++.dg/other/pr55650.C	2012-12-12 09:03:11.000000000 +0100
michael@0: @@ -0,0 +1,21 @@
michael@0: +// PR gcov-profile/55650
michael@0: +// { dg-do link }
michael@0: +// { dg-options "-O2 -fprofile-generate" }
michael@0: +// { dg-additional-sources "pr55650.cc" }
michael@0: +
michael@0: +struct A
michael@0: +{
michael@0: +  virtual void foo ();
michael@0: +};
michael@0: +
michael@0: +struct B : public A
michael@0: +{
michael@0: +  B ();
michael@0: +  void foo () {}
michael@0: +};
michael@0: +
michael@0: +inline A *
michael@0: +bar ()
michael@0: +{
michael@0: +  return new B;
michael@0: +}
michael@0: --- gcc/testsuite/g++.dg/other/pr55650.cc.jj	2012-12-12 09:03:56.329858741 +0100
michael@0: +++ gcc/testsuite/g++.dg/other/pr55650.cc	2012-12-12 09:03:48.982900718 +0100
michael@0: @@ -0,0 +1,4 @@
michael@0: +int
michael@0: +main ()
michael@0: +{
michael@0: +}