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0.8.15.6:
[sbcl.git]
/
src
/
compiler
/
aliencomp.lisp
diff --git
a/src/compiler/aliencomp.lisp
b/src/compiler/aliencomp.lisp
index
56ff0f3
..
5ff9427
100644
(file)
--- a/
src/compiler/aliencomp.lisp
+++ b/
src/compiler/aliencomp.lisp
@@
-565,7
+565,7
@@
(give-up-ir1-transform))
(let* ((denominator (lvar-value denominator))
(bits (1- (integer-length denominator))))
(give-up-ir1-transform))
(let* ((denominator (lvar-value denominator))
(bits (1- (integer-length denominator))))
- (unless (= (ash 1 bits) denominator)
+ (unless (and (> denominator 0) (= (ash 1 bits) denominator))
(give-up-ir1-transform))
(let ((alignment (count-low-order-zeros numerator)))
(unless (>= alignment bits)
(give-up-ir1-transform))
(let ((alignment (count-low-order-zeros numerator)))
(unless (>= alignment bits)