1.0.4.97: Oops. Fix bug introduced in x86 vop if-eq in 1.0.4.73.

[sbcl.git] / src / compiler / x86 / pred.lisp

diff --git a/src/compiler/x86/pred.lisp b/src/compiler/x86/pred.lisp
index a720559..e83f65f 100644 (file)
--- a/src/compiler/x86/pred.lisp
+++ b/src/compiler/x86/pred.lisp
@@ -42,8 +42,8 @@
           (y-val (encode-value-if-immediate y)))
       (cond
         ;; Shorter instruction sequences for these two cases.
-        ((eql 0 y-val) (inst test x x))
-        ((eql 0 x-val) (inst test y y))
+        ((and (eql 0 y-val) (sc-is x any-reg descriptor-reg)) (inst test x x))
+        ((and (eql 0 x-val) (sc-is y any-reg descriptor-reg)) (inst test y y))
 
         ;; An encoded value (literal integer) has to be the second argument.
         ((sc-is x immediate) (inst cmp y x-val))