Implement optional turbofan UnalignedLoad and UnalignedStore operators

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 5fa98e99f95273674c8c87fa68e7dd112292451b..c50da10d9efae90331f618b14650f782b1af01ae 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -1225,34 +1225,65 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
     case kMipsLhu:
       __ lhu(i.OutputRegister(), i.MemoryOperand());
       break;
+    case kMipsUlhu:
+      __ Ulhu(i.OutputRegister(), i.MemoryOperand());
+      break;
     case kMipsLh:
       __ lh(i.OutputRegister(), i.MemoryOperand());
       break;
+    case kMipsUlh:
+      __ Ulh(i.OutputRegister(), i.MemoryOperand());
+      break;
     case kMipsSh:
       __ sh(i.InputRegister(2), i.MemoryOperand());
       break;
+    case kMipsUsh:
+      __ Ush(i.InputRegister(2), i.MemoryOperand(), kScratchReg);
+      break;
     case kMipsLw:
       __ lw(i.OutputRegister(), i.MemoryOperand());
       break;
+    case kMipsUlw:
+      __ Ulw(i.OutputRegister(), i.MemoryOperand());
+      break;
     case kMipsSw:
       __ sw(i.InputRegister(2), i.MemoryOperand());
       break;
+    case kMipsUsw:
+      __ Usw(i.InputRegister(2), i.MemoryOperand());
+      break;
     case kMipsLwc1: {
       __ lwc1(i.OutputSingleRegister(), i.MemoryOperand());
       break;
     }
+    case kMipsUlwc1: {
+      __ lwc1(i.OutputSingleRegister(), i.MemoryOperand());
+      break;
+    }
     case kMipsSwc1: {
       size_t index = 0;
       MemOperand operand = i.MemoryOperand(&index);
       __ swc1(i.InputSingleRegister(index), operand);
       break;
     }
+    case kMipsUswc1: {
+      size_t index = 0;
+      MemOperand operand = i.MemoryOperand(&index);
+      __ Uswc1(i.InputSingleRegister(index), operand, kScratchReg);
+      break;
+    }
     case kMipsLdc1:
       __ ldc1(i.OutputDoubleRegister(), i.MemoryOperand());
       break;
+    case kMipsUldc1:
+      __ Uldc1(i.OutputDoubleRegister(), i.MemoryOperand(), kScratchReg);
+      break;
     case kMipsSdc1:
       __ sdc1(i.InputDoubleRegister(2), i.MemoryOperand());
       break;
+    case kMipsUsdc1:
+      __ Usdc1(i.InputDoubleRegister(2), i.MemoryOperand(), kScratchReg);
+      break;
     case kMipsPush:
       if (instr->InputAt(0)->IsDoubleRegister()) {
         __ sdc1(i.InputDoubleRegister(0), MemOperand(sp, -kDoubleSize));