[llvm] r273067 - Codegen: [MBP] Add assert strings. NFC

[Kyle Butt via llvm-commits]

Author: iteratee
Date: Fri Jun 17 17:40:19 2016
New Revision: 273067

URL: http://llvm.org/viewvc/llvm-project?rev=273067&view=rev
Log:
Codegen: [MBP] Add assert strings. NFC

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

Modified: llvm/trunk/lib/CodeGen/MachineBlockPlacement.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineBlockPlacement.cpp?rev=273067&r1=273066&r2=273067&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineBlockPlacement.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineBlockPlacement.cpp Fri Jun 17 17:40:19 2016
@@ -846,8 +846,8 @@ void MachineBlockPlacement::buildChain(
     SmallVectorImpl<MachineBasicBlock *> &BlockWorkList,
     SmallVectorImpl<MachineBasicBlock *> &EHPadWorkList,
     const BlockFilterSet *BlockFilter) {
-  assert(BB);
-  assert(BlockToChain[BB] == &Chain);
+  assert(BB && "BB must not be null.\n");
+  assert(BlockToChain[BB] == &Chain && "BlockToChainMap mis-match.\n");
   MachineFunction::iterator PrevUnplacedBlockIt = F->begin();
 
   MachineBasicBlock *LoopHeaderBB = BB;