[git] CMU Common Lisp branch master updated. snapshot-2014-08-29-g3bc0f53

[Raymond Toy]

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- Log -----------------------------------------------------------------
commit 3bc0f535ff91082cbb7a207a5d50b1c5045ffaa0
Author: Raymond Toy <toy.raymond at gmail.com>
Date:   Sat Aug 23 08:31:46 2014 -0700

    Make inverse trig signal errors using fdlibm_setexception.
    
     * src/lisp/e_acos.c
       * Use fdlibm_setexception
     * src/lisp/e_asin.c
       * Use fdlibm_setexception
     * src/lisp/s_atan.c
       * Use fdlibm_setexception
     * tests/trig.lisp:
       * Add tests for acos, asin, and atan.

diff --git a/src/lisp/e_acos.c b/src/lisp/e_acos.c
index bd54a04..2dc1eb9 100644
--- a/src/lisp/e_acos.c
+++ b/src/lisp/e_acos.c
@@ -76,7 +76,8 @@ qS4 =  7.70381505559019352791e-02; /* 0x3FB3B8C5, 0xB12E9282 */
 		if(hx>0) return 0.0;		/* acos(1) = 0  */
 		else return pi+2.0*pio2_lo;	/* acos(-1)= pi */
 	    }
-	    return (x-x)/(x-x);		/* acos(|x|>1) is NaN */
+            /* acos(|x|>1) is NaN */
+	    return fdlibm_setexception(x, FDLIBM_INVALID);
 	}
 	if(ix<0x3fe00000) {	/* |x| < 0.5 */
 	    if(ix<=0x3c600000) return pio2_hi+pio2_lo;/*if|x|<2**-57*/
diff --git a/src/lisp/e_asin.c b/src/lisp/e_asin.c
index 4aa6c63..af945fe 100644
--- a/src/lisp/e_asin.c
+++ b/src/lisp/e_asin.c
@@ -85,7 +85,8 @@ qS4 =  7.70381505559019352791e-02; /* 0x3FB3B8C5, 0xB12E9282 */
 	    if(((ix-0x3ff00000)|ux.i[LOWORD])==0)
 		    /* asin(1)=+-pi/2 with inexact */
 		return x*pio2_hi+x*pio2_lo;	
-	    return (x-x)/(x-x);		/* asin(|x|>1) is NaN */   
+            /* asin(|x|>1) is NaN */
+	    return fdlibm_setexception(x, FDLIBM_INVALID);
 	} else if (ix<0x3fe00000) {	/* |x|<0.5 */
 	    if(ix<0x3e400000) {		/* if |x| < 2**-27 */
 		if(huge+x>one) return x;/* return x with inexact if x!=0*/
diff --git a/src/lisp/s_atan.c b/src/lisp/s_atan.c
index 003f057..f16c4b5 100644
--- a/src/lisp/s_atan.c
+++ b/src/lisp/s_atan.c
@@ -99,7 +99,7 @@ huge   = 1.0e300;
 	if(ix>=0x44100000) {	/* if |x| >= 2^66 */
 	    if(ix>0x7ff00000||
 		(ix==0x7ff00000&&(ux.i[LOWORD]!=0)))
-		return x+x;		/* NaN */
+                return fdlibm_setexception(x, FDLIBM_INVALID);  /* NaN */
 	    if(hx>0) return  atanhi[3]+atanlo[3];
 	    else     return -atanhi[3]-atanlo[3];
 	} if (ix < 0x3fdc0000) {	/* |x| < 0.4375 */
diff --git a/tests/trig.lisp b/tests/trig.lisp
index 1b6102d..62f6f91 100644
--- a/tests/trig.lisp
+++ b/tests/trig.lisp
@@ -906,7 +906,6 @@
 		  (kernel:%atanh 1d0))
     (assert-equal ext:double-float-negative-infinity
 		  (kernel:%atanh -1d0))))
-    
 
 (define-test expm1.exceptions
   (:tag :fdlibm)
@@ -969,3 +968,31 @@
   (kernel::with-float-traps-masked (:invalid)
     (assert-true (ext:float-nan-p (kernel:%log -1d0)))
     (assert-true (ext:float-nan-p (kernel:%log *snan*)))))
+
+(define-test acos.exceptions
+  (:tag :fdlibm)
+  (assert-error 'floating-point-invalid-operation
+		(kernel:%acos 2d0))
+  (assert-error 'floating-point-invalid-operation
+		(kernel:%acos -2d0))
+  (kernel::with-float-traps-masked (:invalid)
+    (assert-true (ext:float-nan-p (kernel:%acos 2d0)))
+    (assert-true (ext:float-nan-p (kernel:%acos -2d0)))))
+
+(define-test asin.exceptions
+  (:tag :fdlibm)
+  (assert-error 'floating-point-invalid-operation
+		(kernel:%asin 2d0))
+  (assert-error 'floating-point-invalid-operation
+		(kernel:%asin -2d0))
+  (kernel::with-float-traps-masked (:invalid)
+    (assert-true (ext:float-nan-p (kernel:%asin 2d0)))
+    (assert-true (ext:float-nan-p (kernel:%asin -2d0)))))
+
+(define-test atan.exceptions
+  (:tag :fdlibm)
+  (assert-error 'floating-point-invalid-operation
+		(kernel:%atan *snan*))
+  (assert-true (ext:float-nan-p (kernel:%atan *qnan*)))
+  (kernel::with-float-traps-masked (:invalid)
+    (assert-true (ext:float-nan-p (kernel:%atan *snan*)))))

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

Summary of changes:
 src/lisp/e_acos.c |    3 ++-
 src/lisp/e_asin.c |    3 ++-
 src/lisp/s_atan.c |    2 +-
 tests/trig.lisp   |   29 ++++++++++++++++++++++++++++-
 4 files changed, 33 insertions(+), 4 deletions(-)


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