System/Path/Windows: Make GetSystemLibraryPaths more generic.

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

diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp
index fe6b290ea9f25a89f65ab179ba869fedad324580..66f8e237da68c9f1f7813a6fa3a064f2ae18f00d 100644 (file)
--- a/lib/CodeGen/LiveVariables.cpp
+++ b/lib/CodeGen/LiveVariables.cpp
@@ -42,7 +42,11 @@
 using namespace llvm;
 
 char LiveVariables::ID = 0;
-static RegisterPass<LiveVariables> X("livevars", "Live Variable Analysis");
+INITIALIZE_PASS_BEGIN(LiveVariables, "livevars",
+                "Live Variable Analysis", false, false)
+INITIALIZE_PASS_DEPENDENCY(UnreachableMachineBlockElim)
+INITIALIZE_PASS_END(LiveVariables, "livevars",
+                "Live Variable Analysis", false, false)
 
 
 void LiveVariables::getAnalysisUsage(AnalysisUsage &AU) const {
@@ -286,7 +290,7 @@ MachineInstr *LiveVariables::FindLastRefOrPartRef(unsigned Reg) {
   MachineInstr *LastDef = PhysRegDef[Reg];
   MachineInstr *LastUse = PhysRegUse[Reg];
   if (!LastDef && !LastUse)
-    return false;
+    return 0;
 
   MachineInstr *LastRefOrPartRef = LastUse ? LastUse : LastDef;
   unsigned LastRefOrPartRefDist = DistanceMap[LastRefOrPartRef];
@@ -482,21 +486,6 @@ void LiveVariables::UpdatePhysRegDefs(MachineInstr *MI,
   }
 }
 
-namespace {
-  struct RegSorter {
-    const TargetRegisterInfo *TRI;
-
-    RegSorter(const TargetRegisterInfo *tri) : TRI(tri) { }
-    bool operator()(unsigned A, unsigned B) {
-      if (TRI->isSubRegister(A, B))
-        return true;
-      else if (TRI->isSubRegister(B, A))
-        return false;
-      return A < B;
-    }
-  };
-}
-
 bool LiveVariables::runOnMachineFunction(MachineFunction &mf) {
   MF = &mf;
   MRI = &mf.getRegInfo();