[ic] Introduce BOOLEAN state for CompareIC.

src/arm/code-stubs-arm.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_ARM
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 3342 matching lines @@
     __ Assert(eq, kExpectedAllocationSite);
   }
 
   // Tail call into the stub that handles binary operations with allocation
   // sites.
   BinaryOpWithAllocationSiteStub stub(isolate(), state());
   __ TailCallStub(&stub);
 }
 
 
+void CompareICStub::GenerateBooleans(MacroAssembler* masm) {
+  DCHECK_EQ(CompareICState::BOOLEAN, state());
+  Label miss;
+
+  __ CheckMap(r1, r2, Heap::kBooleanMapRootIndex, &miss, DO_SMI_CHECK);
+  __ CheckMap(r0, r3, Heap::kBooleanMapRootIndex, &miss, DO_SMI_CHECK);
+  if (op() != Token::EQ_STRICT && is_strong(strength())) {
+    __ TailCallRuntime(Runtime::kThrowStrongModeImplicitConversion, 0, 1);
+  } else {
+    if (!Token::IsEqualityOp(op())) {
+      __ ldr(r1, FieldMemOperand(r1, Oddball::kToNumberOffset));
+      __ AssertSmi(r1);
+      __ ldr(r0, FieldMemOperand(r0, Oddball::kToNumberOffset));
+      __ AssertSmi(r0);
+    }
+    __ sub(r0, r1, r0);
+    __ Ret();
+  }
+
+  __ bind(&miss);
+  GenerateMiss(masm);
+}
+
+
 void CompareICStub::GenerateSmis(MacroAssembler* masm) {
   DCHECK(state() == CompareICState::SMI);
   Label miss;
   __ orr(r2, r1, r0);
   __ JumpIfNotSmi(r2, &miss);
 
   if (GetCondition() == eq) {
     // For equality we do not care about the sign of the result.
     __ sub(r0, r0, r1, SetCC);
   } else {
@@ skipping 2151 matching lines @@
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM