Move fused cmp branch ccode to MIR::meta.

This a small refactoring towards removing the large
DecodedInstruction from the MIR class.

Change-Id: I10f9ed5eaac42511d864c71d20a8ff6360292cec
diff --git a/compiler/dex/quick/x86/fp_x86.cc b/compiler/dex/quick/x86/fp_x86.cc
index 6272498..006fe76 100644
--- a/compiler/dex/quick/x86/fp_x86.cc
+++ b/compiler/dex/quick/x86/fp_x86.cc
@@ -303,7 +303,7 @@
     rl_src2 = LoadValue(rl_src2, kFPReg);
     NewLIR2(kX86UcomissRR, rl_src1.low_reg, rl_src2.low_reg);
   }
-  ConditionCode ccode = static_cast<ConditionCode>(mir->dalvikInsn.arg[0]);
+  ConditionCode ccode = mir->meta.ccode;
   switch (ccode) {
     case kCondEq:
       if (!gt_bias) {