PR debug/43650

PR debug/44181
PR debug/44247
* tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Skip
debug stmts.
(canonicalize_loop_ivs): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160762 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ea90541..8cad980 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,14 @@
 2010-06-14  Alexandre Oliva  <aoliva@redhat.com>
 
+       PR debug/43650
+       PR debug/44181
+       PR debug/44247
+       * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Skip
+       debug stmts.
+       (canonicalize_loop_ivs): Likewise.
+
+2010-06-14  Alexandre Oliva  <aoliva@redhat.com>
+
        PR debug/43656
        * haifa-sched.c (setup_insn_reg_pressure_info,
        update_register_pressure): Reject debug insns.

diff --git a/gcc/tree-ssa-loop-manip.c b/gcc/tree-ssa-loop-manip.c
index 219c71b..c6dc8ed 100644 (file)
--- a/gcc/tree-ssa-loop-manip.c
+++ b/gcc/tree-ssa-loop-manip.c
@@ -1081,7 +1081,7 @@ tree_transform_and_unroll_loop (struct loop *loop, unsigned factor,
 
   /* Finally create the new counter for number of iterations and add the new
      exit instruction.  */
-  bsi = gsi_last_bb (exit_bb);
+  bsi = gsi_last_nondebug_bb (exit_bb);
   exit_if = gsi_stmt (bsi);
   create_iv (exit_base, exit_step, NULL_TREE, loop,
             &bsi, false, &ctr_before, &ctr_after);
@@ -1217,7 +1217,7 @@ canonicalize_loop_ivs (struct loop *loop, tree *nit, bool bump_in_latch)
        gsi_insert_seq_on_edge_immediate (loop_preheader_edge (loop), stmts);
     }
 
-  gsi = gsi_last_bb (bump_in_latch ? loop->latch : loop->header);
+  gsi = gsi_last_nondebug_bb (bump_in_latch ? loop->latch : loop->header);
   create_iv (build_int_cst_type (type, 0), build_int_cst (type, 1), NULL_TREE,
             loop, &gsi, bump_in_latch, &var_before, NULL);