[stubs] Introduce a proper ToBooleanStub.

src/crankshaft/x87/lithium-codegen-x87.cc

 // Copyright 2012 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.
 
 #if V8_TARGET_ARCH_X87
 
 #include "src/crankshaft/x87/lithium-codegen-x87.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 2119 matching lines @@
     } else if (type.IsJSArray()) {
       DCHECK(!info()->IsStub());
       EmitBranch(instr, no_condition);
     } else if (type.IsHeapNumber()) {
       UNREACHABLE();
     } else if (type.IsString()) {
       DCHECK(!info()->IsStub());
       __ cmp(FieldOperand(reg, String::kLengthOffset), Immediate(0));
       EmitBranch(instr, not_equal);
     } else {
-      ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types();
-      if (expected.IsEmpty()) expected = ToBooleanStub::Types::Generic();
+      ToBooleanICStub::Types expected =
+          instr->hydrogen()->expected_input_types();
+      if (expected.IsEmpty()) expected = ToBooleanICStub::Types::Generic();
 
-      if (expected.Contains(ToBooleanStub::UNDEFINED)) {
+      if (expected.Contains(ToBooleanICStub::UNDEFINED)) {
         // undefined -> false.
         __ cmp(reg, factory()->undefined_value());
         __ j(equal, instr->FalseLabel(chunk_));
       }
-      if (expected.Contains(ToBooleanStub::BOOLEAN)) {
+      if (expected.Contains(ToBooleanICStub::BOOLEAN)) {
         // true -> true.
         __ cmp(reg, factory()->true_value());
         __ j(equal, instr->TrueLabel(chunk_));
         // false -> false.
         __ cmp(reg, factory()->false_value());
         __ j(equal, instr->FalseLabel(chunk_));
       }
-      if (expected.Contains(ToBooleanStub::NULL_TYPE)) {
+      if (expected.Contains(ToBooleanICStub::NULL_TYPE)) {
         // 'null' -> false.
         __ cmp(reg, factory()->null_value());
         __ j(equal, instr->FalseLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::SMI)) {
+      if (expected.Contains(ToBooleanICStub::SMI)) {
         // Smis: 0 -> false, all other -> true.
         __ test(reg, Operand(reg));
         __ j(equal, instr->FalseLabel(chunk_));
         __ JumpIfSmi(reg, instr->TrueLabel(chunk_));
       } else if (expected.NeedsMap()) {
         // If we need a map later and have a Smi -> deopt.
         __ test(reg, Immediate(kSmiTagMask));
         DeoptimizeIf(zero, instr, Deoptimizer::kSmi);
       }
 
       Register map = no_reg;  // Keep the compiler happy.
       if (expected.NeedsMap()) {
         map = ToRegister(instr->temp());
         DCHECK(!map.is(reg));
         __ mov(map, FieldOperand(reg, HeapObject::kMapOffset));
 
         if (expected.CanBeUndetectable()) {
           // Undetectable -> false.
           __ test_b(FieldOperand(map, Map::kBitFieldOffset),
                     1 << Map::kIsUndetectable);
           __ j(not_zero, instr->FalseLabel(chunk_));
         }
       }
 
-      if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) {
+      if (expected.Contains(ToBooleanICStub::SPEC_OBJECT)) {
         // spec object -> true.
         __ CmpInstanceType(map, FIRST_JS_RECEIVER_TYPE);
         __ j(above_equal, instr->TrueLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::STRING)) {
+      if (expected.Contains(ToBooleanICStub::STRING)) {
         // String value -> false iff empty.
         Label not_string;
         __ CmpInstanceType(map, FIRST_NONSTRING_TYPE);
         __ j(above_equal, &not_string, Label::kNear);
         __ cmp(FieldOperand(reg, String::kLengthOffset), Immediate(0));
         __ j(not_zero, instr->TrueLabel(chunk_));
         __ jmp(instr->FalseLabel(chunk_));
         __ bind(&not_string);
       }
 
-      if (expected.Contains(ToBooleanStub::SYMBOL)) {
+      if (expected.Contains(ToBooleanICStub::SYMBOL)) {
         // Symbol value -> true.
         __ CmpInstanceType(map, SYMBOL_TYPE);
         __ j(equal, instr->TrueLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::SIMD_VALUE)) {
+      if (expected.Contains(ToBooleanICStub::SIMD_VALUE)) {
         // SIMD value -> true.
         __ CmpInstanceType(map, SIMD128_VALUE_TYPE);
         __ j(equal, instr->TrueLabel(chunk_));
       }
 
-      if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) {
+      if (expected.Contains(ToBooleanICStub::HEAP_NUMBER)) {
         // heap number -> false iff +0, -0, or NaN.
         Label not_heap_number;
         __ cmp(FieldOperand(reg, HeapObject::kMapOffset),
                factory()->heap_number_map());
         __ j(not_equal, &not_heap_number, Label::kNear);
         __ fldz();
         __ fld_d(FieldOperand(reg, HeapNumber::kValueOffset));
         __ FCmp();
         __ j(zero, instr->FalseLabel(chunk_));
         __ jmp(instr->TrueLabel(chunk_));
@@ skipping 3532 matching lines @@
   __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), context);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87