Convert ToBooleanStub to a HydrogenStub. Currently just using HBranch, which is still fully impleme…

src/mips/lithium-codegen-mips.cc

 // 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 1849 matching lines @@
   __ stop("LDebugBreak");
 }
 
 
 void LCodeGen::DoBranch(LBranch* instr) {
   int true_block = chunk_->LookupDestination(instr->true_block_id());
   int false_block = chunk_->LookupDestination(instr->false_block_id());
 
   Representation r = instr->hydrogen()->value()->representation();
   if (r.IsInteger32() || r.IsSmi()) {
+    ASSERT(!info()->IsStub());
     Register reg = ToRegister(instr->value());
     EmitBranch(true_block, false_block, ne, reg, Operand(zero_reg));
   } else if (r.IsDouble()) {
+    ASSERT(!info()->IsStub());
     DoubleRegister reg = ToDoubleRegister(instr->value());
     // Test the double value. Zero and NaN are false.
     EmitBranchF(true_block, false_block, nue, reg, kDoubleRegZero);
   } else {
     ASSERT(r.IsTagged());
     Register reg = ToRegister(instr->value());
     HType type = instr->hydrogen()->value()->type();
     if (type.IsBoolean()) {
+      ASSERT(!info()->IsStub());
       __ LoadRoot(at, Heap::kTrueValueRootIndex);
       EmitBranch(true_block, false_block, eq, reg, Operand(at));
     } else if (type.IsSmi()) {
+      ASSERT(!info()->IsStub());
       EmitBranch(true_block, false_block, ne, reg, Operand(zero_reg));
     } else {
       Label* true_label = chunk_->GetAssemblyLabel(true_block);
       Label* false_label = chunk_->GetAssemblyLabel(false_block);
 
       ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types();
       // Avoid deopts in the case where we've never executed this path before.
       if (expected.IsEmpty()) expected = ToBooleanStub::all_types();
 
       if (expected.Contains(ToBooleanStub::UNDEFINED)) {
@@ skipping 3844 matching lines @@
   __ Subu(scratch, result, scratch);
   __ lw(result, FieldMemOperand(scratch,
                                 FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal