AArch64: Add inlining support for ceil(), floor(), rint(), round()

This patch adds inlining support for the following Math, StrictMath
methods in the ARM64 backend:
  * double ceil(double)
  * double floor(double)
  * double rint(double)
  * long round(double)
  * int round(float)

Also some cleanup.

Change-Id: I9f5a2f4065b1313649f4b0c4380b8176703c3fe1
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
diff --git a/compiler/dex/quick/mir_to_lir.h b/compiler/dex/quick/mir_to_lir.h
index b19942d..70c17da 100644
--- a/compiler/dex/quick/mir_to_lir.h
+++ b/compiler/dex/quick/mir_to_lir.h
@@ -965,6 +965,10 @@
     virtual bool GenInlinedAbsDouble(CallInfo* info) = 0;
     bool GenInlinedFloatCvt(CallInfo* info);
     bool GenInlinedDoubleCvt(CallInfo* info);
+    virtual bool GenInlinedCeil(CallInfo* info);
+    virtual bool GenInlinedFloor(CallInfo* info);
+    virtual bool GenInlinedRint(CallInfo* info);
+    virtual bool GenInlinedRound(CallInfo* info, bool is_double);
     virtual bool GenInlinedArrayCopyCharArray(CallInfo* info);
     virtual bool GenInlinedIndexOf(CallInfo* info, bool zero_based);
     bool GenInlinedStringCompareTo(CallInfo* info);