0.9.3.54:

Minor cleanups:

        * INSTALL spelling fix by Luis Oliveira;
        * dependent policy LET-CONVERTION => LET-CONVERSION;
        * Note optimization opportunity in OPTIMIZATIONS.

INSTALL

@@ -31,7 +31,7 @@ INSTALLING SBCL
   In other words, "install.sh" installs SBCL under the directory named
   by the environment variable "INSTALL_ROOT".
 
-  If you install SBCL from binary distribution in other location then
+  If you install SBCL from binary distribution in other location than
   "/usr/local", see section 1.2, "Finding ancillary files".
 
 1.2. Finding ancillary files

OPTIMIZATIONS

@@ -265,3 +265,18 @@ architectures.  Certainly adding #!+/- magic in compiler/*.lisp could be
 done, but such a solution is somewhat inelegant.  Moving the relevant
 DEFTRANSFORMs to the architecture-specific compiler/* areas is also
 possible, but that would duplicate quite a bit of code.
+--------------------------------------------------------------------------------
+#30
+(defun foo (x y)
+  (< x y))
+
+FOO's IR1 representation is roughly:
+
+(defun foo (x y)
+  (if (< x y)
+      T
+      NIL))
+
+However, if a full call is generated for < (and similarly for other
+predicate functions), then the IF is unnecessary, since the return value
+of (< x y) is already T or NIL.

src/compiler/policies.lisp

@@ -27,7 +27,7 @@
           (t 3))
   ("no" "maybe" "yes" "yes"))
 
-(define-optimization-quality let-convertion
+(define-optimization-quality let-conversion
     (if (<= debug speed) 3 0)
   ("off" "maybe" "on" "on"))
 

version.lisp-expr

@@ -17,4 +17,4 @@
 ;;; checkins which aren't released. (And occasionally for internal
 ;;; versions, especially for internal versions off the main CVS
 ;;; branch, it gets hairier, e.g. "0.pre7.14.flaky4.13".)
-"0.9.3.53"
+"0.9.3.54"