2011-09-01 Robert Dewar <dewar@adacore.com>

[pf3gnuchains/gcc-fork.git] / gcc / tree-scalar-evolution.c

diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c
index 646b4f1..6c32923 100644 (file)
--- a/gcc/tree-scalar-evolution.c
+++ b/gcc/tree-scalar-evolution.c
@@ -1796,7 +1796,8 @@ interpret_expr (struct loop *loop, gimple at_stmt, tree expr)
   if (automatically_generated_chrec_p (expr))
     return expr;
 
-  if (TREE_CODE (expr) == POLYNOMIAL_CHREC)
+  if (TREE_CODE (expr) == POLYNOMIAL_CHREC
+      || get_gimple_rhs_class (TREE_CODE (expr)) == GIMPLE_TERNARY_RHS)
     return chrec_dont_know;
 
   extract_ops_from_tree (expr, &code, &op0, &op1);