re PR middle-end/50907 (EDGE_CROSSING incorrectly set across same section with…

re PR middle-end/50907 (EDGE_CROSSING incorrectly set across same section with -freorder-blocks-and-partition -fPIC -fprofile-use)

	PR middle-end/50907
	* function.c (convert_jumps_to_returns): When redirecting an edge
	succ to EXIT_BLOCK_PTR, clear EDGE_CROSSING flag.

	* gcc.dg/tree-prof/pr50907.c: New test.

From-SVN: r181787

gcc/ChangeLog

 2011-11-28  Jakub Jelinek  <jakub@redhat.com>
 
+	PR middle-end/50907
+	* function.c (convert_jumps_to_returns): When redirecting an edge
+	succ to EXIT_BLOCK_PTR, clear EDGE_CROSSING flag.
+
 	PR tree-optimization/50078
 	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Copy over
 	TREE_THIS_VOLATILE also from the old to new lhs resp. rhs.

gcc/function.c

@@ -5670,6 +5670,7 @@ convert_jumps_to_returns (basic_block last_bb, bool simple_p,
 
       /* Fix up the CFG for the successful change we just made.  */
       redirect_edge_succ (e, EXIT_BLOCK_PTR);
+      e->flags &= ~EDGE_CROSSING;
     }
   VEC_free (basic_block, heap, src_bbs);
   return unconverted;

gcc/testsuite/ChangeLog

 2011-11-28  Jakub Jelinek  <jakub@redhat.com>
 
+	PR middle-end/50907
+	* gcc.dg/tree-prof/pr50907.c: New test.
+
 	PR tree-optimization/50078
 	* gcc.dg/pr50078.c: New test.
 

gcc/testsuite/gcc.dg/tree-prof/pr50907.c

+/* PR middle-end/50907 */
+/* { dg-require-effective-target freorder } */
+/* { dg-options "-O -freorder-blocks-and-partition -fschedule-insns -fselective-scheduling -fpic" { target { { powerpc*-*-* ia64-*-* x86_64-*-* } && fpic } } } */
+
+#include "pr45354.c"