Commit 0840231a authored by wlott's avatar wlott
Browse files

Fixed costs of binary arith vops. They were way out to lunch, resulting in

the compiler making silly choices about which vop to use.
parent 7aca7044
......@@ -7,11 +7,11 @@
;;; Scott Fahlman or slisp-group@cs.cmu.edu.
;;;
(ext:file-comment
"$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/arith.lisp,v 1.47 1992/08/04 14:10:53 wlott Exp $")
"$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/arith.lisp,v 1.48 1992/08/16 19:35:26 wlott Exp $")
;;;
;;; **********************************************************************
;;;
;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/arith.lisp,v 1.47 1992/08/04 14:10:53 wlott Exp $
;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/arith.lisp,v 1.48 1992/08/16 19:35:26 wlott Exp $
;;;
;;; This file contains the VM definition arithmetic VOPs for the MIPS.
;;;
......@@ -127,21 +127,21 @@
(:args (x :target r :scs (any-reg))
(y :target r :scs (any-reg)))
(:translate ,translate)
(:generator ,cost
(:generator ,(1+ cost)
(inst ,op r x y)))
(define-vop (,(symbolicate "FAST-" translate "/SIGNED=>SIGNED")
fast-signed-binop)
(:args (x :target r :scs (signed-reg))
(y :target r :scs (signed-reg)))
(:translate ,translate)
(:generator ,untagged-cost
(:generator ,(1+ untagged-cost)
(inst ,op r x y)))
(define-vop (,(symbolicate "FAST-" translate "/UNSIGNED=>UNSIGNED")
fast-unsigned-binop)
(:args (x :target r :scs (unsigned-reg))
(y :target r :scs (unsigned-reg)))
(:translate ,translate)
(:generator ,untagged-cost
(:generator ,(1+ untagged-cost)
(inst ,op r x y)))
(define-vop (,(symbolicate "FAST-" translate "-C/FIXNUM=>FIXNUM")
fast-fixnum-c-binop)
......@@ -162,14 +162,14 @@
(:generator ,untagged-cost
(inst ,op r x y)))))
(define-binop + 2 6 addu (signed-byte 14) (signed-byte 16))
(define-binop - 2 6 subu
(define-binop + 1 5 addu (signed-byte 14) (signed-byte 16))
(define-binop - 1 5 subu
(integer #.(- (1- (ash 1 14))) #.(ash 1 14))
(integer #.(- (1- (ash 1 16))) #.(ash 1 16)))
(define-binop logior 1 2 or (unsigned-byte 14) (unsigned-byte 16))
(define-binop lognor 1 2 nor (unsigned-byte 14) (unsigned-byte 16))
(define-binop logand 1 2 and (unsigned-byte 14) (unsigned-byte 16))
(define-binop logxor 1 2 xor (unsigned-byte 14) (unsigned-byte 16))
(define-binop logior 1 3 or (unsigned-byte 14) (unsigned-byte 16))
(define-binop lognor 1 3 nor (unsigned-byte 14) (unsigned-byte 16))
(define-binop logand 1 3 and (unsigned-byte 14) (unsigned-byte 16))
(define-binop logxor 1 3 xor (unsigned-byte 14) (unsigned-byte 16))
;;; Special case fixnum + and - that trap on overflow. Useful when we don't
;;; know that the result is going to be a fixnum.
......@@ -391,9 +391,6 @@
(inst mfhi r)))
;;;; Binary conditional VOPs:
......
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