MIPS: Fix stack claim and store to slot for large sizes.

src/compiler/mips64/code-generator-mips64.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/compiler/code-generator.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/mips/macro-assembler-mips.h"
 #include "src/scopes.h"
@@ skipping 771 matching lines @@
     case kMips64Ldc1:
       __ ldc1(i.OutputDoubleRegister(), i.MemoryOperand());
       break;
     case kMips64Sdc1:
       __ sdc1(i.InputDoubleRegister(2), i.MemoryOperand());
       break;
     case kMips64Push:
       __ Push(i.InputRegister(0));
       break;
     case kMips64StackClaim: {
-      int words = MiscField::decode(instr->opcode());
-      __ Dsubu(sp, sp, Operand(words << kPointerSizeLog2));
+      __ Dsubu(sp, sp, Operand(i.InputInt32(0)));
       break;
     }
     case kMips64StoreToStackSlot: {
-      int slot = MiscField::decode(instr->opcode());
-      __ sd(i.InputRegister(0), MemOperand(sp, slot << kPointerSizeLog2));
+      __ sd(i.InputRegister(0), MemOperand(sp, i.InputInt32(1)));
       break;
     }
     case kMips64StoreWriteBarrier: {
       Register object = i.InputRegister(0);
       Register index = i.InputRegister(1);
       Register value = i.InputRegister(2);
       __ daddu(index, object, index);
       __ sd(value, MemOperand(index));
       SaveFPRegsMode mode =
           frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs;
@@ skipping 541 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8