1.0.15.9: further ASSOC & MEMBER transform improvements

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

diff --git a/src/compiler/x86/vm.lisp b/src/compiler/x86/vm.lisp
index 8ae051d..3af49f2 100644 (file)
--- a/src/compiler/x86/vm.lisp
+++ b/src/compiler/x86/vm.lisp
@@ -160,7 +160,8 @@
 ;;; (What a KLUDGE! Anyone who wants to come in and clean up this mess
 ;;; has my gratitude.) (FIXME: Maybe this should be me..)
 (eval-when (:compile-toplevel :load-toplevel :execute)
-  (def!constant kludge-nondeterministic-catch-block-size 6))
+  (def!constant kludge-nondeterministic-catch-block-size
+      #!-win32 6 #!+win32 8))
 
 (!define-storage-classes
 
@@ -231,6 +232,8 @@
   (character-reg registers
                  :locations #!-sb-unicode #.*byte-regs*
                             #!+sb-unicode #.*dword-regs*
+                 #!+sb-unicode #!+sb-unicode
+                 :element-size 2
                  #!-sb-unicode #!-sb-unicode
                  :reserve-locations (#.ah-offset #.al-offset)
                  :constant-scs (immediate)
@@ -401,13 +404,34 @@
                (eql value (log 2l0 10l0))
                (eql value (log 2l0 2.718281828459045235360287471352662L0)))
        (sc-number-or-lose 'fp-constant)))))
+
+;; For an immediate TN, return its value encoded for use as a literal.
+;; For any other TN, return the TN.  Only works for FIXNUMs,
+;; STATIC-SYMBOLs, and CHARACTERS (FLOATs and SAPs are handled
+;; elsewhere).
+(defun encode-value-if-immediate (tn)
+  (if (sc-is tn immediate)
+      (let ((val (tn-value tn)))
+        (etypecase val
+          (integer (fixnumize val))
+          (symbol (+ nil-value (static-symbol-offset val)))
+          (character (logior (ash (char-code val) n-widetag-bits)
+                             character-widetag))))
+      tn))
 \f
 ;;;; miscellaneous function call parameters
 
 ;;; offsets of special stack frame locations
 (def!constant ocfp-save-offset 0)
 (def!constant return-pc-save-offset 1)
-(def!constant code-save-offset 2)
+
+(declaim (inline frame-word-offset))
+(defun frame-word-offset (index)
+  (- (1+ index)))
+
+(declaim (inline frame-byte-offset))
+(defun frame-byte-offset (index)
+  (* (frame-word-offset index) n-word-bytes))
 
 ;;; FIXME: This is a bad comment (changed since when?) and there are others
 ;;; like it in this file. It'd be nice to clarify them. Failing that deleting