Revert r9901 to make tree green again.

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
===================================================================
--- src/mips/lithium-codegen-mips.cc	(revision 9901)
+++ src/mips/lithium-codegen-mips.cc	(working copy)
@@ -1728,36 +1728,6 @@
 }
 
 
-Condition LCodeGen::EmitIsString(Register input,
-                                 Register temp1,
-                                 Label* is_not_string,
-                                 Label* is_string) {
-  __ JumpIfSmi(input, is_not_string);
-  __ GetObjectType(input, temp1, temp1);
-  __ Branch(is_not_string, ge, temp1, Operand(FIRST_NONSTRING_TYPE));
-
-  return lt;
-}
-
-
-void LCodeGen::DoIsStringAndBranch(LIsStringAndBranch* instr) {
-  Register reg = ToRegister(instr->InputAt(0));
-  Register temp1 = ToRegister(instr->TempAt(0));
-  Register temp2 = scratch0();
-
-  int true_block = chunk_->LookupDestination(instr->true_block_id());
-  int false_block = chunk_->LookupDestination(instr->false_block_id());
-  Label* true_label = chunk_->GetAssemblyLabel(true_block);
-  Label* false_label = chunk_->GetAssemblyLabel(false_block);
-
-  Condition true_cond =
-      EmitIsString(reg, temp1, false_label, true_label);
-
-  EmitBranch(true_block, false_block, true_cond, temp2,
-             Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE));
-}
-
-
 void LCodeGen::DoIsSmiAndBranch(LIsSmiAndBranch* instr) {
   int true_block = chunk_->LookupDestination(instr->true_block_id());
   int false_block = chunk_->LookupDestination(instr->false_block_id());
@@ -1783,42 +1753,6 @@
 }
 
 
-static Condition ComputeCompareCondition(Token::Value op) {
-  switch (op) {
-    case Token::EQ_STRICT:
-    case Token::EQ:
-      return eq;
-    case Token::LT:
-      return lt;
-    case Token::GT:
-      return gt;
-    case Token::LTE:
-      return le;
-    case Token::GTE:
-      return ge;
-    default:
-      UNREACHABLE();
-      return kNoCondition;
-  }
-}
-
-
-void LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) {
-  Token::Value op = instr->op();
-  int true_block = chunk_->LookupDestination(instr->true_block_id());
-  int false_block = chunk_->LookupDestination(instr->false_block_id());
-
-  Handle<Code> ic = CompareIC::GetUninitialized(op);
-  CallCode(ic, RelocInfo::CODE_TARGET, instr);
-  // On MIPS there is no need for a "no inlined smi code" marker (nop).
-
-  Condition condition = ComputeCompareCondition(op);
-
-  EmitBranch(true_block, false_block, condition, at,
-             Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE));
-}
-
-
 static InstanceType TestType(HHasInstanceTypeAndBranch* instr) {
   InstanceType from = instr->from();
   InstanceType to = instr->to();
@@ -2116,6 +2050,26 @@
 }
 
 
+static Condition ComputeCompareCondition(Token::Value op) {
+  switch (op) {
+    case Token::EQ_STRICT:
+    case Token::EQ:
+      return eq;
+    case Token::LT:
+      return lt;
+    case Token::GT:
+      return gt;
+    case Token::LTE:
+      return le;
+    case Token::GTE:
+      return ge;
+    default:
+      UNREACHABLE();
+      return kNoCondition;
+  }
+}
+
+
 void LCodeGen::DoCmpT(LCmpT* instr) {
   Token::Value op = instr->op();