MIPS[64]: Disable fusion multiple-accumulate instructions

test/cctest/BUILD.gn

 # Copyright 2016 The V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("../../gni/v8.gni")
 
 v8_executable("cctest") {
   testonly = true
 
   sources = [
@@ skipping 341 matching lines @@
     defines += [ "BUILDING_V8_SHARED" ]
   } else {
     deps += [ "../..:v8" ]
   }
 
   cflags = []
   ldflags = []
 
   if (v8_current_cpu == "ppc" || v8_current_cpu == "ppc64" ||
       v8_current_cpu == "arm" || v8_current_cpu == "arm64" ||
-      v8_current_cpu == "s390" || v8_current_cpu == "s390x") {
+      v8_current_cpu == "s390" || v8_current_cpu == "s390x" ||
+      v8_current_cpu == "mips" || v8_current_cpu == "mips64" ||
+      v8_current_cpu == "mipsel" || v8_current_cpu == "mipsel64") {
     # Disable fmadd/fmsub so that expected results match generated code in
     # RunFloat64MulAndFloat64Add1 and friends.
     cflags += [ "-ffp-contract=off" ]
   }
 
   if (is_win) {
     # This warning is benignly triggered by the U16 and U32 macros in
     # bytecode-utils.h.
     # C4309: 'static_cast': truncation of constant value
     cflags += [ "/wd4309" ]
@@ skipping 50 matching lines @@
   ]
 
   deps = [
     "../..:v8",
     "../..:v8_libbase",
     "../..:v8_libplatform",
     "//build/config/sanitizers:deps",
     "//build/win:default_exe_manifest",
   ]
 }