re PR rtl-optimization/40209 (ICE in iv_analyze_def caused by stale REG_UNUSED note)

PR rtl-optimization/40209 * loop-iv.c (iv_analysis_loop_init): Call df_note_add_problem. From-SVN: r150038

re PR rtl-optimization/40209 (ICE in iv_analyze_def caused by stale REG_UNUSED note)
PR rtl-optimization/40209 * loop-iv.c (iv_analysis_loop_init): Call df_note_add_problem. From-SVN: r150038
c580edc8 · Neil Vachharajani · Ian Lance Taylor · a7796c74 · c580edc8 · c580edc8
Commit c580edc8 authored Jul 24, 2009 by Neil Vachharajani Committed by Ian Lance Taylor Jul 24, 2009
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gcc/ChangeLog
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gcc/loop-iv.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2009-07-23  Neil Vachharajani  <nvachhar@google.com>
+
+	PR rtl-optimization/40209
+	* loop-iv.c (iv_analysis_loop_init): Call df_note_add_problem.
+
 2009-07-23  Uros Bizjak  <ubizjak@gmail.com>

 	* config/i386/i386.c: Use ASM_LONG instead of .long.  Concatenate

--- a/gcc/loop-iv.c
+++ b/gcc/loop-iv.c
@@ -278,6 +278,7 @@ iv_analysis_loop_init (struct loop *loop)
  df_remove_problem (df_chain);
  df_process_deferred_rescans ();
  df_chain_add_problem (DF_UD_CHAIN);
+  df_note_add_problem ();
  df_set_blocks (blocks);
  df_analyze ();
  if (dump_file)