MIPS: Fix TF EmitPrepareArguments after 85c735729870be01b3e98ccacda1c37dc0076b31.

src/compiler/mips/instruction-selector-mips.cc

 // Copyright 2014 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.
 
 #include "src/base/adapters.h"
 #include "src/base/bits.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
@@ skipping 839 matching lines @@
 
   // Prepare for C function call.
   if (descriptor->IsCFunctionCall()) {
     Emit(kArchPrepareCallCFunction |
              MiscField::encode(static_cast<int>(descriptor->CParameterCount())),
          0, nullptr, 0, nullptr);
 
     // Poke any stack arguments.
     int slot = kCArgSlotCount;
     for (PushParameter input : (*arguments)) {
-      Emit(kMipsStoreToStackSlot, g.NoOutput(), g.UseRegister(input.node()),
-           g.TempImmediate(slot << kPointerSizeLog2));
-      ++slot;
+      if (input.node()) {
+        Emit(kMipsStoreToStackSlot, g.NoOutput(), g.UseRegister(input.node()),
+             g.TempImmediate(slot << kPointerSizeLog2));
+        ++slot;
+      }
     }
   } else {
     // Possibly align stack here for functions.
     int push_count = static_cast<int>(descriptor->StackParameterCount());
     if (push_count > 0) {
       Emit(kMipsStackClaim, g.NoOutput(),
            g.TempImmediate(push_count << kPointerSizeLog2));
     }
     for (size_t n = 0; n < arguments->size(); ++n) {
       PushParameter input = (*arguments)[n];
@@ skipping 517 matching lines @@
          MachineOperatorBuilder::kFloat32Max |
          MachineOperatorBuilder::kFloat32RoundDown |
          MachineOperatorBuilder::kFloat32RoundUp |
          MachineOperatorBuilder::kFloat32RoundTruncate |
          MachineOperatorBuilder::kFloat32RoundTiesEven;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8