MachineCSE: Hoist isConstantPhysReg out of the loop, it checks for overlaps already.

[oota-llvm.git] / lib / CodeGen / PrologEpilogInserter.h

diff --git a/lib/CodeGen/PrologEpilogInserter.h b/lib/CodeGen/PrologEpilogInserter.h
index ee759e8622cf0dd5f1b0e2df3e9488772b8b0025..0d140a9bb4819eba531b31437ccc5d3e950a9ad8 100644 (file)
--- a/lib/CodeGen/PrologEpilogInserter.h
+++ b/lib/CodeGen/PrologEpilogInserter.h
@@ -27,7 +27,6 @@
 #include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/ADT/SparseBitVector.h"
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/IndexedMap.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 
 namespace llvm {
@@ -37,10 +36,8 @@ namespace llvm {
   class PEI : public MachineFunctionPass {
   public:
     static char ID;
-    PEI() : MachineFunctionPass(&ID) {}
-
-    const char *getPassName() const {
-      return "Prolog/Epilog Insertion & Frame Finalization";
+    PEI() : MachineFunctionPass(ID) {
+      initializePEIPass(*PassRegistry::getPassRegistry());
     }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const;
@@ -95,11 +92,10 @@ namespace llvm {
     // functions.
     bool ShrinkWrapThisFunction;
 
-    // When using the scavenger post-pass to resolve frame reference
-    // materialization registers, maintain a map of the registers to
-    // the constant value and SP adjustment associated with it.
-    typedef std::pair<int, int> FrameConstantEntry;
-    IndexedMap<FrameConstantEntry, VirtReg2IndexFunctor> FrameConstantRegMap;
+    // Flag to control whether to use the register scavenger to resolve
+    // frame index materialization registers. Set according to
+    // TRI->requiresFrameIndexScavenging() for the curren function.
+    bool FrameIndexVirtualScavenging;
 
 #ifndef NDEBUG
     // Machine function handle.