[cmucl-commit] [git] CMU Common Lisp branch master updated. snapshot-2013-11-10-g06300c8

[Raymond Toy]

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- Log -----------------------------------------------------------------
commit 06300c812a5dfeecc9afd43d45608356f7c80dd6
Author: Raymond Toy <toy.raymond at gmail.com>
Date:   Sat Dec 7 17:41:17 2013 -0800

    Sparc has sincos in its C library.  Use it.  But note that it has
    accurate pi-reduction so we don't have do it ourselves.

diff --git a/src/code/irrat.lisp b/src/code/irrat.lisp
index d1e9a26..8e17a45 100644
--- a/src/code/irrat.lisp
+++ b/src/code/irrat.lisp
@@ -309,10 +309,11 @@
   #+(or ppc sse2)
   (frob %%sin %%cos %%tan))
 
-;; Linux has a sincos function in the C library. Use it.  But we need
-;; to do pi reduction ourselves because the C library doesn't do
-;; accurate reduction.
-#+(or (and linux x86))
+;; Linux and sparc have a sincos function in the C library. Use it.
+;; But on linux we need to do pi reduction ourselves because the C
+;; library doesn't do accurate reduction.  Sparc does accurate pi
+;; reduction, so we don't need to do it ourselves.
+#+(or (and linux x86) sparc)
 (progn
 (declaim (inline %%sincos))
 (export '%%sincos)
@@ -321,6 +322,7 @@
   (sin double-float :out)
   (cos double-float :out))
 
+#+(and linux x86)
 (defun %sincos (theta)
   (declare (double-float theta))
   ;; Accurately reduce theta.
@@ -351,7 +353,16 @@
 	  (3
 	   (values (sin2 s c y1)
 		   (- (cos2 s c y1)))))))))
+#+sparc
+(declaim (inline %sinccos))
+#+sparc
+(defun %sincos (theta)
+  (multiple-value-bind (ignore s c)
+      (%%sincos theta)
+    (values c s)))
 )
+
+
 
 ;;;; Power functions.
 
@@ -1006,9 +1017,9 @@
   "Return cos(Theta) + i sin(Theta), AKA exp(i Theta)."
   (if (complexp theta)
       (error (intl:gettext "Argument to CIS is complex: ~S") theta)
-      #-(or (and linux x86))
+      #-(or (and linux x86) sparc)
       (complex (cos theta) (sin theta))
-      #+(or (and linux x86))
+      #+(or (and linux x86) sparc)
       (number-dispatch ((theta real))
 	((rational)
 	 (let ((arg (coerce theta 'double-float)))
diff --git a/src/compiler/float-tran.lisp b/src/compiler/float-tran.lisp
index ecca5f1..fba199b 100644
--- a/src/compiler/float-tran.lisp
+++ b/src/compiler/float-tran.lisp
@@ -731,7 +731,7 @@
     (deftransform name ((x) '(double-float) rtype :eval-name t :when :both)
       `(,prim x))))
 
-#+(or (and linux x86))
+#+(or (and linux x86) sparc)
 (progn
 (defknown (kernel::%sincos)
     (double-float) (values double-float double-float)

-----------------------------------------------------------------------

Summary of changes:
 src/code/irrat.lisp          |   23 +++++++++++++++++------
 src/compiler/float-tran.lisp |    2 +-
 2 files changed, 18 insertions(+), 7 deletions(-)


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