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[Bug middle-end/56301] [4.7 Regression] wrong code with the fix for PR53844
- From: "doko at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 18 Feb 2013 12:31:31 +0000
- Subject: [Bug middle-end/56301] [4.7 Regression] wrong code with the fix for PR53844
- Auto-submitted: auto-generated
- References: <bug-56301-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56301
--- Comment #1 from Matthias Klose <doko at gcc dot gnu.org> 2013-02-18 12:31:31 UTC ---
Created attachment 29482
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29482
test case
no reduced test case yet, but there is a diff in the tree dump with
-fdump-tree-dse in the test_deserialise_ptrace function:
diff -u <working version> <not-working version>
--- revert/upstart-1.6.1/init/test_job.c.132t.dse2
+++ norevert/upstart-1.6.1/init/test_job.c.132t.dse2
@@ -367,12 +367,8 @@
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);