Remove dead code. Improve llvm_unreachable text. Simplify some control flow.

[oota-llvm.git] / lib / CodeGen / ShrinkWrapping.cpp

diff --git a/lib/CodeGen/ShrinkWrapping.cpp b/lib/CodeGen/ShrinkWrapping.cpp
index 13f269eb5204bd715d798261b23f842bf3b0a910..21ae2f5e56eb796202412c80fa6bd7c8da8adc87 100644 (file)
--- a/lib/CodeGen/ShrinkWrapping.cpp
+++ b/lib/CodeGen/ShrinkWrapping.cpp
@@ -93,6 +93,7 @@ void PEI::getAnalysisUsage(AnalysisUsage &AU) const {
   }
   AU.addPreserved<MachineLoopInfo>();
   AU.addPreserved<MachineDominatorTree>();
+  AU.addRequired<TargetPassConfig>();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
@@ -124,7 +125,7 @@ MachineLoop* PEI::getTopLevelLoopParent(MachineLoop *LP) {
 }
 
 bool PEI::isReturnBlock(MachineBasicBlock* MBB) {
-  return (MBB && !MBB->empty() && MBB->back().getDesc().isReturn());
+  return (MBB && !MBB->empty() && MBB->back().isReturn());
 }
 
 // Initialize shrink wrapping DFA sets, called before iterations.