[Bug middle-end/56301] [4.7 Regression] wrong code with the fix for PR53844

[doko at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56301



Matthias Klose <doko at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|WAITING                     |NEW



--- Comment #2 from Matthias Klose <doko at gcc dot gnu.org> 2013-02-18 
12:37:50 UTC ---

with -fdump-tree-dse-details:



--- revert/upstart-1.6.1/init/test_job.c.132t.dse2

+++ norevert/upstart-1.6.1/init/test_job.c.132t.dse2

@@ -35,6 +35,14 @@



 ;; Function test_deserialise_ptrace (test_deserialise_ptrace, funcdef_no=60,

decl_uid=9022, cgraph_uid=60)



+  Deleted dead store 'job_64->trace_state = 3;

+'

+  Deleted dead store 'job_64->trace_forks = 0;

+'

+  Deleted dead store 'job_64->state = 3;

+'

+  Deleted dead store 'job_64->goal = 1;

+'

 test_deserialise_ptrace ()

 {

   long unsigned int D.9415;

@@ -367,12 +375,8 @@

   abort ();



 <bb 44>:

-  job_64->goal = 1;

-  job_64->state = 3;

   D.9269_65 = job_64->pid;

   *D.9269_65 = pid_49;

-  job_64->trace_forks = 0;

-  job_64->trace_state = 3;



 <bb 45>:

   __ret_66 = nih_str_array_new (0B);