[llvm] r344004 - MachineFunctionPrinterPass: Declare SlotIndexes as used if available; NFC

[Matthias Braun via llvm-commits]

Author: matze
Date: Mon Oct  8 16:47:34 2018
New Revision: 344004

URL: http://llvm.org/viewvc/llvm-project?rev=344004&view=rev
Log:
MachineFunctionPrinterPass: Declare SlotIndexes as used if available; NFC

This makes print-machineinstrs print the slot indexes in more
situations. NFC for normal compilation.

Modified:
    llvm/trunk/lib/CodeGen/MachineFunctionPrinterPass.cpp

Modified: llvm/trunk/lib/CodeGen/MachineFunctionPrinterPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineFunctionPrinterPass.cpp?rev=344004&r1=344003&r2=344004&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineFunctionPrinterPass.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineFunctionPrinterPass.cpp Mon Oct  8 16:47:34 2018
@@ -39,6 +39,7 @@ struct MachineFunctionPrinterPass : publ
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
+    AU.addUsedIfAvailable<SlotIndexes>();
     MachineFunctionPass::getAnalysisUsage(AU);
   }