[stubs] Introduce a proper ToBooleanStub.

src/crankshaft/mips/lithium-codegen-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.7
 // 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 1948 matching lines @@
       DCHECK(!info()->IsStub());
       DoubleRegister dbl_scratch = double_scratch0();
       __ ldc1(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset));
       // Test the double value. Zero and NaN are false.
       EmitBranchF(instr, ogl, dbl_scratch, kDoubleRegZero);
     } else if (type.IsString()) {
       DCHECK(!info()->IsStub());
       __ lw(at, FieldMemOperand(reg, String::kLengthOffset));
       EmitBranch(instr, ne, at, Operand(zero_reg));
     } else {
-      ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types();
+      ToBooleanICStub::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::Types::Generic();
+      if (expected.IsEmpty()) expected = ToBooleanICStub::Types::Generic();
 
-      if (expected.Contains(ToBooleanStub::UNDEFINED)) {
+      if (expected.Contains(ToBooleanICStub::UNDEFINED)) {
         // undefined -> false.
         __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
         __ Branch(instr->FalseLabel(chunk_), eq, reg, Operand(at));
       }
-      if (expected.Contains(ToBooleanStub::BOOLEAN)) {
+      if (expected.Contains(ToBooleanICStub::BOOLEAN)) {
         // Boolean -> its value.
         __ LoadRoot(at, Heap::kTrueValueRootIndex);
         __ Branch(instr->TrueLabel(chunk_), eq, reg, Operand(at));
         __ LoadRoot(at, Heap::kFalseValueRootIndex);
         __ Branch(instr->FalseLabel(chunk_), eq, reg, Operand(at));
       }
-      if (expected.Contains(ToBooleanStub::NULL_TYPE)) {
+      if (expected.Contains(ToBooleanICStub::NULL_TYPE)) {
         // 'null' -> false.
         __ LoadRoot(at, Heap::kNullValueRootIndex);
         __ Branch(instr->FalseLabel(chunk_), eq, reg, Operand(at));
       }
 
-      if (expected.Contains(ToBooleanStub::SMI)) {
+      if (expected.Contains(ToBooleanICStub::SMI)) {
         // Smis: 0 -> false, all other -> true.
         __ Branch(instr->FalseLabel(chunk_), eq, reg, Operand(zero_reg));
         __ JumpIfSmi(reg, instr->TrueLabel(chunk_));
       } else if (expected.NeedsMap()) {
         // If we need a map later and have a Smi -> deopt.
         __ SmiTst(reg, at);
         DeoptimizeIf(eq, instr, Deoptimizer::kSmi, at, Operand(zero_reg));
       }
 
       const Register map = scratch0();
       if (expected.NeedsMap()) {
         __ lw(map, FieldMemOperand(reg, HeapObject::kMapOffset));
         if (expected.CanBeUndetectable()) {
           // Undetectable -> false.
           __ lbu(at, FieldMemOperand(map, Map::kBitFieldOffset));
           __ And(at, at, Operand(1 << Map::kIsUndetectable));
           __ Branch(instr->FalseLabel(chunk_), ne, at, Operand(zero_reg));
         }
       }
 
-      if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) {
+      if (expected.Contains(ToBooleanICStub::SPEC_OBJECT)) {
         // spec object -> true.
         __ lbu(at, FieldMemOperand(map, Map::kInstanceTypeOffset));
         __ Branch(instr->TrueLabel(chunk_),
                   ge, at, Operand(FIRST_JS_RECEIVER_TYPE));
       }
 
-      if (expected.Contains(ToBooleanStub::STRING)) {
+      if (expected.Contains(ToBooleanICStub::STRING)) {
         // String value -> false iff empty.
         Label not_string;
         __ lbu(at, FieldMemOperand(map, Map::kInstanceTypeOffset));
         __ Branch(&not_string, ge , at, Operand(FIRST_NONSTRING_TYPE));
         __ lw(at, FieldMemOperand(reg, String::kLengthOffset));
         __ Branch(instr->TrueLabel(chunk_), ne, at, Operand(zero_reg));
         __ Branch(instr->FalseLabel(chunk_));
         __ bind(&not_string);
       }
 
-      if (expected.Contains(ToBooleanStub::SYMBOL)) {
+      if (expected.Contains(ToBooleanICStub::SYMBOL)) {
         // Symbol value -> true.
         const Register scratch = scratch1();
         __ lbu(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset));
         __ Branch(instr->TrueLabel(chunk_), eq, scratch, Operand(SYMBOL_TYPE));
       }
 
-      if (expected.Contains(ToBooleanStub::SIMD_VALUE)) {
+      if (expected.Contains(ToBooleanICStub::SIMD_VALUE)) {
         // SIMD value -> true.
         const Register scratch = scratch1();
         __ lbu(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset));
         __ Branch(instr->TrueLabel(chunk_), eq, scratch,
                   Operand(SIMD128_VALUE_TYPE));
       }
 
-      if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) {
+      if (expected.Contains(ToBooleanICStub::HEAP_NUMBER)) {
         // heap number -> false iff +0, -0, or NaN.
         DoubleRegister dbl_scratch = double_scratch0();
         Label not_heap_number;
         __ LoadRoot(at, Heap::kHeapNumberMapRootIndex);
         __ Branch(&not_heap_number, ne, map, Operand(at));
         __ ldc1(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset));
         __ BranchF(instr->TrueLabel(chunk_), instr->FalseLabel(chunk_),
                    ne, dbl_scratch, kDoubleRegZero);
         // Falls through if dbl_scratch == 0.
         __ Branch(instr->FalseLabel(chunk_));
@@ skipping 3432 matching lines @@
 void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) {
   Register context = ToRegister(instr->context());
   __ sw(context, MemOperand(fp, StandardFrameConstants::kContextOffset));
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8