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Update of /cvsroot/sbcl/sbcl/src/compiler/alpha
In directory fdv4jf1.ch3.sourceforge.com:/tmp/cvs-serv22620/src/compiler/alpha
22.214.171.124: deal with load-time-value constants more aggressively
* Revert 126.96.36.199.rc5 to allow constant moves from LTV TNs.
* Modify the relevant VOPs to handle LTV constants correctly.
While this mostly results in duplicated code, VOPs can generate
better code even for unknown values in the constant vector.
RCS file: /cvsroot/sbcl/sbcl/src/compiler/alpha/move.lisp,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -d -r1.9 -r1.10
--- move.lisp 14 Jul 2005 16:30:43 -0000 1.9
+++ move.lisp 18 Jul 2009 17:53:00 -0000 1.10
@@ -161,7 +161,11 @@
(:results (y :scs (signed-reg unsigned-reg)))
(:note "constant load")
- (inst li (tn-value x) y)))
+ (cond ((sc!c::tn-leaf x)
+ (inst li (tn-value x) y))
+ (loadw y code-tn (tn-offset x) other-pointer-lowtag)
+ (inst sra y n-fixnum-tag-bits y)))))
(define-move-vop move-to-word-c :move
(constant) (signed-reg unsigned-reg))
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