1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/cse.c b/gcc/cse.c
index 9f31e67..82ea2b7 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -5992,6 +5992,21 @@ cse_extended_basic_block (struct cse_basic_block_data *ebb_data)
       int no_conflict = 0;
 
       bb = ebb_data->path[path_entry].bb;
+
+      /* Invalidate recorded information for eh regs if there is an EH
+	 edge pointing to that bb.  */
+      if (bb_has_eh_pred (bb))
+	{
+	  struct df_ref **def_rec;
+
+	  for (def_rec = df_get_artificial_defs (bb->index); *def_rec; def_rec++)
+	    {
+	      struct df_ref *def = *def_rec;
+	      if (DF_REF_FLAGS (def) & DF_REF_AT_TOP)
+		invalidate (DF_REF_REG (def), GET_MODE (DF_REF_REG (def)));
+	    }
+	}
+
       FOR_BB_INSNS (bb, insn)
 	{
 	  /* If we have processed 1,000 insns, flush the hash table to