re PR tree-optimization/57081 (Segmentation fault in simple_iv (tree-scalar-evolution.c:3151))

2013-04-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/57081
	* loop-init.c: Include tree-flow.h.
	(loop_optimizer_finalize): Free number of iteration estimates.
	* Makefile.in (loop-init.o): Add $(TREE_FLOW_H) dependency.

	* gcc.dg/torture/pr57081.c: New testcase.

From-SVN: r198392

gcc/ChangeLog

+2013-04-29  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/57081
+	* loop-init.c: Include tree-flow.h.
+	(loop_optimizer_finalize): Free number of iteration estimates.
+	* Makefile.in (loop-init.o): Add $(TREE_FLOW_H) dependency.
+
 2013-04-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/57083

gcc/Makefile.in

@@ -3181,7 +3181,7 @@ cfgloopmanip.o : cfgloopmanip.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) \
 loop-init.o : loop-init.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) $(GGC_H) \
    $(BASIC_BLOCK_H) hard-reg-set.h $(CFGLOOP_H) \
    coretypes.h $(TM_H) $(OBSTACK_H) $(TREE_PASS_H) $(FLAGS_H) \
-   $(REGS_H) $(DF_H)
+   $(REGS_H) $(DF_H) $(TREE_FLOW_H)
 loop-unswitch.o : loop-unswitch.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
    $(DUMPFILE_H) \
    $(RTL_H) $(TM_H) $(BASIC_BLOCK_H) hard-reg-set.h $(CFGLOOP_H) $(PARAMS_H) \

gcc/loop-init.c

@@ -30,6 +30,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "flags.h"
 #include "df.h"
 #include "ggc.h"
+#include "tree-flow.h"
 
 
 /* Apply FLAGS to the loop state.  */
@@ -142,6 +143,8 @@ loop_optimizer_finalize (void)
   if (loops_state_satisfies_p (LOOPS_HAVE_RECORDED_EXITS))
     release_recorded_exits ();
 
+  free_numbers_of_iterations_estimates ();
+
   /* If we should preserve loop structure, do not free it but clear
      flags that advanced properties are there as we are not preserving
      that in full.  */

gcc/testsuite/ChangeLog

+2013-04-29  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/57081
+	* gcc.dg/torture/pr57081.c: New testcase.
+
 2013-04-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/57083

gcc/testsuite/gcc.dg/torture/pr57081.c

+/* { dg-do compile } */
+
+int a;
+
+void f(void)
+{
+  int b;
+
+  if(0)
+    lbl:
+	goto lbl;
+
+  if(b)
+    {
+      int p = 0;
+      goto lbl;
+    }
+
+  a = 0;
+  while(b++);
+  goto lbl;
+}