* gcc.target/i386/sse2-mmx.c (unsigned_add3): Use _mm_setzero_si64

[pf3gnuchains/gcc-fork.git] / gcc / tree-dfa.c

diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c
index f79df0b..346f6f3 100644 (file)
--- a/gcc/tree-dfa.c
+++ b/gcc/tree-dfa.c
@@ -1028,3 +1028,21 @@ get_ref_base_and_extent (tree exp, HOST_WIDE_INT *poffset,
   return exp;
 }
 
+/* Returns true if STMT references an SSA_NAME that has
+   SSA_NAME_OCCURS_IN_ABNORMAL_PHI set, otherwise false.  */
+
+bool
+stmt_references_abnormal_ssa_name (tree stmt)
+{
+  ssa_op_iter oi;
+  use_operand_p use_p;
+
+  FOR_EACH_SSA_USE_OPERAND (use_p, stmt, oi, SSA_OP_USE)
+    {
+      if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (USE_FROM_PTR (use_p)))
+       return true;
+    }
+
+  return false;
+}
+