2011-03-24 Richard Guenther <rguenther@suse.de>

	PR tree-optimization/48270
	* tree-ssa-phiopt.c (cond_if_else_store_replacement): Do
	not free datarefs before ddrs.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171394 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c2e1bf4..edf923c 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-03-24  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/48270
+       * tree-ssa-phiopt.c (cond_if_else_store_replacement): Do
+       not free datarefs before ddrs.
+
 2011-03-24  Eric Botcazou  <ebotcazou@adacore.com>
 
        * tree-sra.c (build_ref_for_offset): Strip useless type conversions

diff --git a/gcc/tree-ssa-phiopt.c b/gcc/tree-ssa-phiopt.c
index 77ce5b0..caea9ac 100644 (file)
--- a/gcc/tree-ssa-phiopt.c
+++ b/gcc/tree-ssa-phiopt.c
@@ -1494,8 +1494,6 @@ cond_if_else_store_replacement (basic_block then_bb, basic_block else_bb,
   else_ddrs = VEC_alloc (ddr_p, heap, 1);
   compute_all_dependences (then_datarefs, &then_ddrs, NULL, false);
   compute_all_dependences (else_datarefs, &else_ddrs, NULL, false);
-  free_data_refs (then_datarefs);
-  free_data_refs (else_datarefs);
   blocks[0] = then_bb;
   blocks[1] = else_bb;
   blocks[2] = join_bb;
@@ -1517,6 +1515,8 @@ cond_if_else_store_replacement (basic_block then_bb, basic_block else_bb,
         {
           free_dependence_relations (then_ddrs);
           free_dependence_relations (else_ddrs);
+         free_data_refs (then_datarefs);
+         free_data_refs (else_datarefs);
           VEC_free (gimple, heap, then_stores);
           VEC_free (gimple, heap, else_stores);
           return false;
@@ -1539,6 +1539,8 @@ cond_if_else_store_replacement (basic_block then_bb, basic_block else_bb,
         {
           free_dependence_relations (then_ddrs);
           free_dependence_relations (else_ddrs);
+         free_data_refs (then_datarefs);
+         free_data_refs (else_datarefs);
           VEC_free (gimple, heap, then_stores);
           VEC_free (gimple, heap, else_stores);
           return false;
@@ -1556,6 +1558,8 @@ cond_if_else_store_replacement (basic_block then_bb, basic_block else_bb,
 
   free_dependence_relations (then_ddrs);
   free_dependence_relations (else_ddrs);
+  free_data_refs (then_datarefs);
+  free_data_refs (else_datarefs);
   VEC_free (gimple, heap, then_stores);
   VEC_free (gimple, heap, else_stores);