MIPS: Branch delay slot and other optimizations.

src/mips/lithium-codegen-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 617 matching lines @@
 
   if (FLAG_trap_on_deopt) {
     Label skip;
     if (cc != al) {
       __ Branch(&skip, NegateCondition(cc), src1, src2);
     }
     __ stop("trap_on_deopt");
     __ bind(&skip);
   }
 
-  if (cc == al) {
-    __ Jump(entry, RelocInfo::RUNTIME_ENTRY);
-  } else {
-    // TODO(plind): The Arm port is a little different here, due to their
-    // DeOpt jump table, which is not used for Mips yet.
-    __ Jump(entry, RelocInfo::RUNTIME_ENTRY, cc, src1, src2);
-  }
+  // TODO(plind): The Arm port is a little different here, due to their
+  // DeOpt jump table, which is not used for Mips yet.
+  __ Jump(entry, RelocInfo::RUNTIME_ENTRY, cc, src1, src2);
 }
 
 
 void LCodeGen::PopulateDeoptimizationData(Handle<Code> code) {
   int length = deoptimizations_.length();
   if (length == 0) return;
   Handle<DeoptimizationInputData> data =
       factory()->NewDeoptimizationInputData(length, TENURED);
 
   Handle<ByteArray> translations = translations_.CreateByteArray();
@@ skipping 4391 matching lines @@
   __ Subu(scratch, result, scratch);
   __ lw(result, FieldMemOperand(scratch,
                                 FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal