MIPS: [turbofan] Clean up and factor out branch generation logic.

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index a49be3939667f32ad6a9590baabc189f1b317501..4eb372a7800be2be7a6448bfeba6c2aa71acf226 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -391,8 +391,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
   UNIMPLEMENTED();
 
 // Assembles branches after an instruction.
-void CodeGenerator::AssembleArchBranch(Instruction* instr,
-                                       FlagsCondition condition) {
+void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) {
   MipsOperandConverter i(this, instr);
   Label* tlabel = branch->true_label;
   Label* flabel = branch->false_label;
@@ -416,7 +415,7 @@ void CodeGenerator::AssembleArchBranch(Instruction* instr,
         cc = eq;
         break;
       default:
-        UNSUPPORTED_COND(kMipsTst, condition);
+        UNSUPPORTED_COND(kMipsTst, branch->condition);
         break;
     }
     __ And(at, i.InputRegister(0), i.InputOperand(1));