A64: Handle a few TODOs.

src/a64/disasm-a64.cc

Index: src/a64/disasm-a64.cc
diff --git a/src/a64/disasm-a64.cc b/src/a64/disasm-a64.cc
index b5e5fdd2c8dd456e63c5c8917ad96c21d5cf771e..970be11d7872d7caae79c0498996b00fbfb13246 100644
--- a/src/a64/disasm-a64.cc
+++ b/src/a64/disasm-a64.cc
@@ -1606,8 +1606,8 @@ int Disassembler::SubstitutePCRelAddressField(Instruction* instr,
     offset = -offset;
     sign = '-';
   }
-  // TODO(jbramley): Can we print the target address here?
-  AppendToOutput("#%c0x%x", sign, offset);
+  STATIC_ASSERT(sizeof(*instr) == 1);
+  AppendToOutput("#%c0x%x (addr %p)", sign, offset, instr + offset);
   return 13;
 }
 
@@ -1634,8 +1634,8 @@ int Disassembler::SubstituteBranchTargetField(Instruction* instr,
     offset = -offset;
     sign = '-';
   }
-  // TODO(mcapewel): look up pc + offset in label table.
-  AppendToOutput("#%c0x%" PRIx64, sign, offset);
+  STATIC_ASSERT(sizeof(*instr) == 1);
+  AppendToOutput("#%c0x%" PRIx64 " (addr %p)", sign, offset, instr + offset);
   return 8;
 }