Don't recalculate the loop info and loop dominators analyses if they're

preserved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45596 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 3 deletions

diff --git a/lib/CodeGen/MachineDominators.cpp b/lib/CodeGen/MachineDominators.cpp
index e343240ea2..7c521ccb0e 100644
--- a/lib/CodeGen/MachineDominators.cpp
+++ b/lib/CodeGen/MachineDominators.cpp
@@ -13,12 +13,17 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/MachineDominators.h"
+#include "llvm/CodeGen/Passes.h"
 
 using namespace llvm;
 
 TEMPLATE_INSTANTIATION(class DomTreeNodeBase<MachineBasicBlock>);
 TEMPLATE_INSTANTIATION(class DominatorTreeBase<MachineBasicBlock>);
 
-char MachineDominatorTree::ID = 0;
-static RegisterPass<MachineDominatorTree>
-E("machinedomtree", "MachineDominator Tree Construction", true);
+namespace {
+  char MachineDominatorTree::ID = 0;
+  RegisterPass<MachineDominatorTree>
+  E("machinedomtree", "MachineDominator Tree Construction", true);
+}
+
+const PassInfo *llvm::MachineDominatorsID = E.getPassInfo();