added example-instruction-info.py

demonstrates getting flag information for an opcode

test/example-instruction-info.py

@@ -0,0 +1,37 @@
+import llvm.target
+from llvmpy import api, extra
+
+
+def main():
+  triple = "i386--"
+
+  print("init start")
+  '''
+  api.llvm.InitializeAllTargets()
+  api.llvm.InitializeAllTargetInfos()
+  api.llvm.InitializeAllTargetMCs()
+  api.llvm.InitializeAllAsmParsers()
+  api.llvm.InitializeAllAsmPrinters()
+  api.llvm.InitializeAllDisassemblers()
+  '''
+  print("init done\n")
+
+  tm = llvm.target.TargetMachine.x86()
+  if not tm:
+    print("error: failed to lookup target x86 \n")
+    return 1
+
+  print("created target machine\n")
+
+  MII = tm.instr_info
+  if not MII:
+    print("error: no instruction info for target " + triple + "\n")
+    return 1
+
+  print("created instr info\n")
+  MID = MII.get(919) #int3
+  print("INT3(%d): flags=0x%x, tsflags=0x%x\n" % (MID.getOpcode(), MID.getFlags(), MID.TSFlags))
+
+  return 0
+
+exit(main())