MIPS: Optimise Math.floor(x/y) to use integer division for MIPS.

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 186 matching lines @@
 # 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
 debug-liveedit-double-call: SKIP
 
+# Currently always deopt on minus zero
+math-floor-of-div-minus-zero: SKIP
+
 ##############################################################################
 # Native Client uses the ARM simulator so will behave similarly to arm
 # on mjsunit tests.
 # TODO(bradchen): enable more tests for NaCl V8 when it stops using
 # the ARM simulator.
 ##############################################################################
 [ $arch == nacl_ia32 || $arch == nacl_x64 ]
 # There is no /tmp directory for NaCl runs
 d8-os: SKIP
 
@@ skipping 11 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
 
 # Poor performance for NaCl V8 causes an assertion failure for this test.
 regress/regress-165637: SKIP
 
 # Skip long running test that times out in debug mode and goes OOM on NaCl.
 regress/regress-crbug-160010: SKIP