[macruby-changes] [2306] MacRuby/trunk

[source_changes at macosforge.org]

Revision: 2306
          http://trac.macosforge.org/projects/ruby/changeset/2306
Author:   pthomson at apple.com
Date:     2009-08-13 10:59:09 -0700 (Thu, 13 Aug 2009)
Log Message:
-----------
On 64-bit, bignums now use uint64_t and __uint128_t for their internal storage, which provides a pretty significant speed boost.

Modified Paths:
--------------
    MacRuby/trunk/bignum.c
    MacRuby/trunk/include/ruby/defines.h

Modified: MacRuby/trunk/bignum.c
===================================================================
--- MacRuby/trunk/bignum.c	2009-08-13 07:35:57 UTC (rev 2305)
+++ MacRuby/trunk/bignum.c	2009-08-13 17:59:09 UTC (rev 2306)
@@ -310,7 +310,7 @@
 VALUE
 rb_quad_unpack(const char *buf, int sign)
 {
-    unsigned LONG_LONG q;
+    BDIGIT_DBL q;
     long neg = 0;
     long i;
     BDIGIT *digits;
@@ -875,7 +875,11 @@
 	    num %= hbase;
 	}
 	if (trim && ds[i-1] == 0) i--;
-	k = SIZEOF_BDIGITS;
+#ifdef __LP64__
+	k = SIZEOF_BDIGITS/2;
+#else
+    k = SIZEOF_BDIGITS;
+#endif
 	while (k--) {
 	    ptr[--j] = ruby_digitmap[num % base];
 	    num /= base;

Modified: MacRuby/trunk/include/ruby/defines.h
===================================================================
--- MacRuby/trunk/include/ruby/defines.h	2009-08-13 07:35:57 UTC (rev 2305)
+++ MacRuby/trunk/include/ruby/defines.h	2009-08-13 17:59:09 UTC (rev 2306)
@@ -77,7 +77,12 @@
 # define SIZEOF_LONG_LONG SIZEOF___INT64
 #endif
 
-#if SIZEOF_INT*2 <= SIZEOF_LONG_LONG
+#if defined(__LP64__)
+# define BDIGIT uint64_t
+# define SIZEOF_BDIGITS 8
+# define BDIGIT_DBL __uint128_t
+# define BDIGIT_DBL_SIGNED __int128_t
+#elif SIZEOF_INT*2 <= SIZEOF_LONG_LONG
 # define BDIGIT unsigned int
 # define SIZEOF_BDIGITS SIZEOF_INT
 # define BDIGIT_DBL unsigned LONG_LONG
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