tree-nrv.c (tree_nrv): Release VDEFs.

2012-04-05  Richard Guenther  <rguenther@suse.de>

	* tree-nrv.c (tree_nrv): Release VDEFs.
	* tree-sra.c (sra_modify_constructor_assign): Likewise.
	(sra_modify_assign): Likewise.
	* tree-vect-stmts.c (vect_remove_stores): Likewise.
	* tree-vect-loop.c (vect_transform_loop): Likewise.
	* tree-ssa-dom.c (optimize_stmt): Likewise.
	* tree-vect-slp.c (vect_schedule_slp): Likewise.
	* tree-ssa-math-opts.c (execute_cse_sincos): Likewise.

From-SVN: r186160

9 files changed, 33 insertions, 3 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 591c5af..bd45eb7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,16 @@
 2012-04-05  Richard Guenther  <rguenther@suse.de>
 
+	* tree-nrv.c (tree_nrv): Release VDEFs.
+	* tree-sra.c (sra_modify_constructor_assign): Likewise.
+	(sra_modify_assign): Likewise.
+	* tree-vect-stmts.c (vect_remove_stores): Likewise.
+	* tree-vect-loop.c (vect_transform_loop): Likewise.
+	* tree-ssa-dom.c (optimize_stmt): Likewise.
+	* tree-vect-slp.c (vect_schedule_slp): Likewise.
+	* tree-ssa-math-opts.c (execute_cse_sincos): Likewise.
+
+2012-04-05  Richard Guenther  <rguenther@suse.de>
+
 	* gimple-iterator.c (gsi_remove): Return whether EH edges need to be
 	cleanup.
 	* gimple.h (gsi_remove): Adjust.
diff --git a/gcc/tree-eh.c b/gcc/tree-eh.c
index f19dc2c..b78d9e9 100644
--- a/gcc/tree-eh.c
+++ b/gcc/tree-eh.c
@@ -3268,12 +3268,12 @@ sink_clobbers (basic_block bb)
       vdef = gimple_vdef (stmt);
       if (vdef && TREE_CODE (vdef) == SSA_NAME)
 	{
+	  release_ssa_name (vdef);
 	  vdef = SSA_NAME_VAR (vdef);
 	  mark_sym_for_renaming (vdef);
 	  gimple_set_vdef (stmt, vdef);
 	  gimple_set_vuse (stmt, vdef);
 	}
-      release_defs (stmt);
       gsi_insert_before (&dgsi, stmt, GSI_SAME_STMT);
     }
 
@@ -3955,7 +3955,7 @@ cleanup_empty_eh_move_lp (basic_block bb, edge e_out,
 
   /* Delete the RESX that was matched within the empty handler block.  */
   gsi = gsi_last_bb (bb);
-  mark_virtual_ops_for_renaming (gsi_stmt (gsi));
+  unlink_stmt_vdef (gsi_stmt (gsi));
   gsi_remove (&gsi, true);
 
   /* Clean up E_OUT for the fallthru.  */
diff --git a/gcc/tree-nrv.c b/gcc/tree-nrv.c
index 982fcc8..9176e29 100644
--- a/gcc/tree-nrv.c
+++ b/gcc/tree-nrv.c
@@ -244,6 +244,7 @@ tree_nrv (void)
 	    {
 	      unlink_stmt_vdef (stmt);
 	      gsi_remove (&gsi, true);
+	      release_defs (stmt);
 	    }
 	  else
 	    {
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index 84dc3be..c5f105a 100644
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -2821,6 +2821,7 @@ sra_modify_constructor_assign (gimple *stmt, gimple_stmt_iterator *gsi)
 	{
 	  unlink_stmt_vdef (*stmt);
 	  gsi_remove (gsi, true);
+	  release_defs (*stmt);
 	  return SRA_AM_REMOVED;
 	}
       else
@@ -2844,6 +2845,7 @@ sra_modify_constructor_assign (gimple *stmt, gimple_stmt_iterator *gsi)
       init_subtree_with_zero (acc, gsi, false, loc);
       unlink_stmt_vdef (*stmt);
       gsi_remove (gsi, true);
+      release_defs (*stmt);
       return SRA_AM_REMOVED;
     }
   else
@@ -3094,6 +3096,7 @@ sra_modify_assign (gimple *stmt, gimple_stmt_iterator *gsi)
 	      gsi_next (gsi);
 	      unlink_stmt_vdef (*stmt);
 	      gsi_remove (&orig_gsi, true);
+	      release_defs (*stmt);
 	      sra_stats.deleted++;
 	      return SRA_AM_REMOVED;
 	    }
@@ -3114,6 +3117,7 @@ sra_modify_assign (gimple *stmt, gimple_stmt_iterator *gsi)
 	      gcc_assert (*stmt == gsi_stmt (*gsi));
 	      unlink_stmt_vdef (*stmt);
 	      gsi_remove (gsi, true);
+	      release_defs (*stmt);
 	      sra_stats.deleted++;
 	      return SRA_AM_REMOVED;
 	    }
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c
index d2e4cc4..d35297a 100644
--- a/gcc/tree-ssa-dom.c
+++ b/gcc/tree-ssa-dom.c
@@ -2301,6 +2301,7 @@ optimize_stmt (basic_block bb, gimple_stmt_iterator si)
 		  if (dump_file && (dump_flags & TDF_DETAILS))
 		    fprintf (dump_file, "  Flagged to clear EH edges.\n");
 		}
+	      release_defs (stmt);
 	      return;
 	    }
 	}
diff --git a/gcc/tree-ssa-math-opts.c b/gcc/tree-ssa-math-opts.c
index 5c3543e..f54d08d 100644
--- a/gcc/tree-ssa-math-opts.c
+++ b/gcc/tree-ssa-math-opts.c
@@ -1430,6 +1430,8 @@ execute_cse_sincos (void)
 		      gimple_set_location (new_stmt, loc);
 		      unlink_stmt_vdef (stmt);
 		      gsi_replace (&gsi, new_stmt, true);
+		      if (gimple_vdef (stmt))
+			release_ssa_name (gimple_vdef (stmt));
 		    }
 		  break;
 
@@ -1450,6 +1452,8 @@ execute_cse_sincos (void)
 		      gimple_set_location (new_stmt, loc);
 		      unlink_stmt_vdef (stmt);
 		      gsi_replace (&gsi, new_stmt, true);
+		      if (gimple_vdef (stmt))
+			release_ssa_name (gimple_vdef (stmt));
 		    }
 		  break;
 
@@ -1465,6 +1469,8 @@ execute_cse_sincos (void)
 		      gimple_set_location (new_stmt, loc);
 		      unlink_stmt_vdef (stmt);
 		      gsi_replace (&gsi, new_stmt, true);
+		      if (gimple_vdef (stmt))
+			release_ssa_name (gimple_vdef (stmt));
 		    }
 		  break;
 
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index 16515dc..3df0e4b 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -5476,8 +5476,11 @@ vect_transform_loop (loop_vec_info loop_vinfo)
 	      else
 		{
 		  /* Free the attached stmt_vec_info and remove the stmt.  */
-		  free_stmt_vec_info (gsi_stmt (si));
+		  gimple store = gsi_stmt (si);
+		  free_stmt_vec_info (store);
+		  unlink_stmt_vdef (store);
 		  gsi_remove (&si, true);
+		  release_defs (store);
 		  continue;
 		}
 	    }
diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index 0ab6be0..014fa98 100644
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -3043,7 +3043,9 @@ vect_schedule_slp (loop_vec_info loop_vinfo, bb_vec_info bb_vinfo)
            store = STMT_VINFO_RELATED_STMT (vinfo_for_stmt (store));
           /* Free the attached stmt_vec_info and remove the stmt.  */
           gsi = gsi_for_stmt (store);
+	  unlink_stmt_vdef (store);
           gsi_remove (&gsi, true);
+	  release_defs (store);
           free_stmt_vec_info (store);
         }
     }
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index acaf675..dabb63d 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -5653,7 +5653,9 @@ vect_remove_stores (gimple first_stmt)
 	next = STMT_VINFO_RELATED_STMT (stmt_info);
       /* Free the attached stmt_vec_info and remove the stmt.  */
       next_si = gsi_for_stmt (next);
+      unlink_stmt_vdef (next);
       gsi_remove (&next_si, true);
+      release_defs (next);
       free_stmt_vec_info (next);
       next = tmp;
     }