0.7.1.20:

[sbcl.git] / src / compiler / sparc / subprim.lisp

diff --git a/src/compiler/sparc/subprim.lisp b/src/compiler/sparc/subprim.lisp
new file mode 100644 (file)
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+++ b/src/compiler/sparc/subprim.lisp
@@ -0,0 +1,53 @@
+;;;; linkage information for standard static functions, and random vops
+
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
+
+(in-package "SB!VM")
+\f
+;;;; LENGTH
+(define-vop (length/list)
+  (:translate length)
+  (:args (object :scs (descriptor-reg) :target ptr))
+  (:arg-types list)
+  (:temporary (:scs (descriptor-reg) :from (:argument 0)) ptr)
+  (:temporary (:scs (non-descriptor-reg)) temp)
+  (:temporary (:scs (any-reg) :type fixnum :to (:result 0) :target result)
+             count)
+  (:results (result :scs (any-reg descriptor-reg)))
+  (:policy :fast-safe)
+  (:vop-var vop)
+  (:save-p :compute-only)
+  (:generator 50
+    (let ((done (gen-label))
+         (loop (gen-label))
+         (not-list (generate-cerror-code vop object-not-list-error object)))
+      (move ptr object)
+      (move count zero-tn)
+
+      (emit-label loop)
+
+      (inst cmp ptr null-tn)
+      (inst b :eq done)
+      (inst nop)
+
+      (test-type ptr temp not-list t list-pointer-lowtag)
+
+      (loadw ptr ptr cons-cdr-slot list-pointer-lowtag)
+      (inst add count count (fixnumize 1))
+      (test-type ptr temp loop nil list-pointer-lowtag)
+
+      (cerror-call vop done object-not-list-error ptr)
+
+      (emit-label done)
+      (move result count))))
+       
+
+(define-static-fun length (object) :translate length)
+