MSVC on AMD64 LLP64 type model support (226094, r=me on patch from Michael Moy <mmoy@yahoo.com>).

js/src/jscpucfg.h

@@ -48,7 +48,58 @@
 #define HAVE_VA_LIST_AS_ARRAY
 #endif
 
-#if defined(_WIN32) || defined(XP_OS2) || defined(WINCE)
+#if defined(_WIN64)
+
+#if defined(_AMD64_)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define JS_BYTES_PER_BYTE   1L
+#define JS_BYTES_PER_SHORT  2L
+#define JS_BYTES_PER_INT    4L
+#define JS_BYTES_PER_INT64  8L
+#define JS_BYTES_PER_LONG   4L
+#define JS_BYTES_PER_FLOAT  4L
+#define JS_BYTES_PER_DOUBLE 8L
+#define JS_BYTES_PER_WORD   8L
+#define JS_BYTES_PER_DWORD  8L
+
+#define JS_BITS_PER_BYTE    8L
+#define JS_BITS_PER_SHORT   16L
+#define JS_BITS_PER_INT     32L
+#define JS_BITS_PER_INT64   64L
+#define JS_BITS_PER_LONG    32L
+#define JS_BITS_PER_FLOAT   32L
+#define JS_BITS_PER_DOUBLE  64L
+#define JS_BITS_PER_WORD    64L
+
+#define JS_BITS_PER_BYTE_LOG2   3L
+#define JS_BITS_PER_SHORT_LOG2  4L
+#define JS_BITS_PER_INT_LOG2    5L
+#define JS_BITS_PER_INT64_LOG2  6L
+#define JS_BITS_PER_LONG_LOG2   5L
+#define JS_BITS_PER_FLOAT_LOG2  5L
+#define JS_BITS_PER_DOUBLE_LOG2 6L
+#define JS_BITS_PER_WORD_LOG2   6L
+
+#define JS_ALIGN_OF_SHORT   2L
+#define JS_ALIGN_OF_INT     4L
+#define JS_ALIGN_OF_LONG    4L
+#define JS_ALIGN_OF_INT64   8L
+#define JS_ALIGN_OF_FLOAT   4L
+#define JS_ALIGN_OF_DOUBLE  8L
+#define JS_ALIGN_OF_POINTER 8L
+#define JS_ALIGN_OF_WORD    8L
+
+#define JS_BYTES_PER_WORD_LOG2   3L
+#define JS_BYTES_PER_DWORD_LOG2  3L
+#define PR_WORDS_PER_DWORD_LOG2  0L
+#else  /* !defined(_AMD64_) */
+#error "CPU type is unknown"
+#endif /* !defined(_AMD64_) */
+
+#elif defined(_WIN32) || defined(XP_OS2) || defined(WINCE)
+
 #define IS_LITTLE_ENDIAN 1
 #undef  IS_BIG_ENDIAN
 
@@ -94,7 +145,8 @@
 #define PR_WORDS_PER_DWORD_LOG2  1L
 #endif /* _WIN32 || XP_OS2 || WINCE*/
 
-#if defined(_WINDOWS) && !defined(_WIN32) /* WIN16 */
+#elif defined(_WINDOWS) && !defined(_WIN32) /* WIN16 */
+
 #define IS_LITTLE_ENDIAN 1
 #undef  IS_BIG_ENDIAN
 
@@ -138,6 +190,7 @@
 #define JS_BYTES_PER_WORD_LOG2   2L
 #define JS_BYTES_PER_DWORD_LOG2  3L
 #define PR_WORDS_PER_DWORD_LOG2  1L
+
 #endif /* defined(_WINDOWS) && !defined(_WIN32) */
 
 #elif defined(XP_UNIX) || defined(XP_BEOS)

js/src/jstypes.h

@@ -362,7 +362,11 @@ typedef ptrdiff_t JSPtrdiff;
 **  A type for pointer difference. Variables of this type are suitable
 **      for storing a pointer or pointer sutraction.
 ************************************************************************/
+#if JS_BYTES_PER_WORD == 8 && JS_BYTES_PER_LONG != 8
+typedef JSUint64 JSUptrdiff;
+#else
 typedef unsigned long JSUptrdiff;
+#endif
 
 /************************************************************************
 ** TYPES:       JSBool
@@ -387,8 +391,13 @@ typedef JSUint8 JSPackedBool;
 /*
 ** A JSWord is an integer that is the same size as a void*
 */
+#if JS_BYTES_PER_WORD == 8 && JS_BYTES_PER_LONG != 8
+typedef JSInt64 JSWord;
+typedef JSUint64 JSUword;
+#else
 typedef long JSWord;
 typedef unsigned long JSUword;
+#endif
 
 #include "jsotypes.h"