[ic] Introduce BOOLEAN state for CompareIC.

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 40d77dc199a3f989c5492d82e76be9378621b25a..b4a9d3bfde7092ad3f3f522f97078b5d36b044c7 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -3518,6 +3518,30 @@ void BinaryOpICWithAllocationSiteStub::Generate(MacroAssembler* masm) {
 }
 
 
+void CompareICStub::GenerateBooleans(MacroAssembler* masm) {
+  DCHECK_EQ(CompareICState::BOOLEAN, state());
+  Label miss;
+
+  __ CheckMap(a1, a2, Heap::kBooleanMapRootIndex, &miss, DO_SMI_CHECK);
+  __ CheckMap(a0, a3, Heap::kBooleanMapRootIndex, &miss, DO_SMI_CHECK);
+  if (op() != Token::EQ_STRICT && is_strong(strength())) {
+    __ TailCallRuntime(Runtime::kThrowStrongModeImplicitConversion, 0, 1);
+  } else {
+    if (!Token::IsEqualityOp(op())) {
+      __ lw(a1, FieldMemOperand(a1, Oddball::kToNumberOffset));
+      __ AssertSmi(a1);
+      __ lw(a0, FieldMemOperand(a0, Oddball::kToNumberOffset));
+      __ AssertSmi(a0);
+    }
+    __ Ret(USE_DELAY_SLOT);
+    __ Subu(v0, a1, a0);
+  }
+
+  __ bind(&miss);
+  GenerateMiss(masm);
+}
+
+
 void CompareICStub::GenerateSmis(MacroAssembler* masm) {
   DCHECK(state() == CompareICState::SMI);
   Label miss;