bug 570476. Support integer division on x86/x64. (r=wmaddox)

--HG--
extra : convert_revision : 064dc57a57630e1bc2ab256308cb373e3049fb0c

js/src/nanojit/Native.h

@@ -92,6 +92,9 @@
 #  define NJ_SOFTFLOAT_SUPPORTED 0
 #endif
 
+#ifndef NJ_DIVI_SUPPORTED
+#  define NJ_DIVI_SUPPORTED 0
+#endif
 
 #if NJ_SOFTFLOAT_SUPPORTED
     #define CASESF(x)   case x

js/src/nanojit/NativeARM.h

@@ -98,6 +98,7 @@ namespace nanojit
 #define NJ_EXPANDED_LOADSTORE_SUPPORTED 1
 #define NJ_F2I_SUPPORTED                1
 #define NJ_SOFTFLOAT_SUPPORTED          1
+#define NJ_DIVI_SUPPORTED               0
 
 #define NJ_CONSTANT_POOLS
 const int NJ_MAX_CPOOL_OFFSET = 4096;

js/src/nanojit/NativePPC.h

@@ -61,6 +61,7 @@ namespace nanojit
 #define NJ_EXPANDED_LOADSTORE_SUPPORTED 0
 #define NJ_F2I_SUPPORTED                0
 #define NJ_SOFTFLOAT_SUPPORTED          0
+#define NJ_DIVI_SUPPORTED               0    
 
     enum ConditionRegister {
         CR0 = 0,

js/src/nanojit/NativeSparc.h

@@ -80,6 +80,7 @@ namespace nanojit
 #define NJ_EXPANDED_LOADSTORE_SUPPORTED 0
 #define NJ_F2I_SUPPORTED                1
 #define NJ_SOFTFLOAT_SUPPORTED          0
+#define NJ_DIVI_SUPPORTED               0    
 
     const int NJ_ALIGN_STACK = 16;
 

js/src/nanojit/NativeX64.h

@@ -67,6 +67,7 @@ namespace nanojit
 #define NJ_EXPANDED_LOADSTORE_SUPPORTED 1
 #define NJ_F2I_SUPPORTED                1
 #define NJ_SOFTFLOAT_SUPPORTED          0
+#define NJ_DIVI_SUPPORTED               1    
 
     static const Register RAX = { 0 };      // 1st int return, # of sse varargs
     static const Register RCX = { 1 };      // 4th int arg

js/src/nanojit/Nativei386.h

@@ -104,7 +104,8 @@ namespace nanojit
     #define NJ_EXPANDED_LOADSTORE_SUPPORTED 1
     #define NJ_F2I_SUPPORTED                1
     #define NJ_SOFTFLOAT_SUPPORTED          0
-
+    #define NJ_DIVI_SUPPORTED               1
+    
         // Preserve a 16-byte stack alignment, to support the use of
         // SSE instructions like MOVDQA (if not by Tamarin itself,
         // then by the C functions it calls).