x86/x64 port of Math.floor(x/y) to use integer division for specific divisor

test/mjsunit/mjsunit.status

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 108 matching lines @@
 # Requires bigger stack size in the Genesis and if stack size is increased,
 # the test requires too much time to run.  However, the problem test covers
 # should be platform-independent.
 regress/regress-1132: SKIP
 
 # Stack manipulations in LiveEdit is not implemented for this arch.
 debug-liveedit-check-stack: SKIP
 debug-liveedit-stack-padding: SKIP
 debug-liveedit-restart-frame: SKIP
 
+# Currently always deopt on minus zero
+math-floor-of-div-minus-zero: SKIP
+
 ##############################################################################
 [ $arch == mips ]
 
 # Slow tests which times out in debug mode.
 try: PASS, SKIP if $mode == debug
 debug-scripts-request: PASS, SKIP if $mode == debug
 array-constructor: PASS, SKIP if $mode == debug
 
 # Times out often in release mode on MIPS.
 compiler/regress-stacktrace-methods: PASS, PASS || TIMEOUT if $mode == release
@@ skipping 34 matching lines @@
 # Requires bigger stack size in the Genesis and if stack size is increased,
 # the test requires too much time to run.  However, the problem test covers
 # should be platform-independent.
 regress/regress-1132: SKIP
 
 # Stack manipulations in LiveEdit is not implemented for this arch.
 debug-liveedit-check-stack: SKIP
 debug-liveedit-stack-padding: SKIP
 debug-liveedit-restart-frame: SKIP