tweak error message

diff --git a/rtl-xform.scm b/rtl-xform.scm
index b19a396e8b02acf33f951d63b6af194383d9f4aa..c7331ebaf20fb54cb7ee36b62e25ab7ed499ee08 100644 (file)
--- a/rtl-xform.scm
+++ b/rtl-xform.scm
@@ -400,14 +400,14 @@
               (rtx-make-operand expr)
               (context-error context
                              "While canonicalizing rtl"
-                             "can't canonicalize"
+                             "can't canonicalize, unknown symbol"
                              expr))))
        ((pair? expr)
         expr)
        (else
         (context-error context
                        "While canonicalizing rtl"
-                       "can't canonicalize"
+                       "can't canonicalize, syntax error"
                        expr)))
 )
 \f