0.9.17.5:

[sbcl.git] / src / compiler / policies.lisp

diff --git a/src/compiler/policies.lisp b/src/compiler/policies.lisp
index e68e4b0..78759f4 100644 (file)
--- a/src/compiler/policies.lisp
+++ b/src/compiler/policies.lisp
@@ -80,3 +80,10 @@
 (define-optimization-quality compute-debug-fun
     debug
   ("no" "minimal" "yes" "yes"))
+
+(define-optimization-quality preserve-single-use-debug-variables
+    (if (and (>= debug 2)
+             (< speed 3))
+        3
+        0)
+  ("no" "no" "no" "yes"))