Author: void
Date: Wed Jan 2 14:47:37 2008
New Revision: 45496
URL: http://llvm.org/viewvc/llvm-project?rev=45496&view=rev
Log:
Remove dead code.
Modified:
llvm/trunk/lib/CodeGen/MachineLICM.cpp
Modified: llvm/trunk/lib/CodeGen/MachineLICM.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineLICM.cpp?rev=45496&r1=45495&r2=45496&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineLICM.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineLICM.cpp Wed Jan 2 14:47:37 2008
@@ -56,9 +56,6 @@
// State that is updated as we process loops
bool Changed; // True if a loop is changed.
MachineLoop *CurLoop; // The current loop we are working on.
-
- // Map the def of a virtual register to the machine instruction.
- IndexedMap<const MachineInstr*, VirtReg2IndexFunctor> VRegDefs;
public:
static char ID; // Pass identification, replacement for typeid
MachineLICM() : MachineFunctionPass((intptr_t)&ID) {}
@@ -92,11 +89,6 @@
HoistRegion(DT->getNode(L->getHeader()));
}
- /// MapVirtualRegisterDefs - Create a map of which machine instruction
- /// defines a virtual register.
- ///
- void MapVirtualRegisterDefs();
-
/// IsInSubLoop - A little predicate that returns true if the specified
/// basic block is in a subloop of the current one, not the current one
/// itself.
@@ -192,8 +184,6 @@
LI = &getAnalysis<MachineLoopInfo>();
DT = &getAnalysis<MachineDominatorTree>();
- MapVirtualRegisterDefs();
-
for (MachineLoopInfo::iterator
I = LI->begin(), E = LI->end(); I != E; ++I) {
CurLoop = *I;
@@ -208,31 +198,6 @@
return Changed;
}
-/// MapVirtualRegisterDefs - Create a map of which machine instruction defines
a
-/// virtual register.
-///
-void MachineLICM::MapVirtualRegisterDefs() {
- for (MachineFunction::const_iterator
- I = CurMF->begin(), E = CurMF->end(); I != E; ++I) {
- const MachineBasicBlock &MBB = *I;
-
- for (MachineBasicBlock::const_iterator
- II = MBB.begin(), IE = MBB.end(); II != IE; ++II) {
- const MachineInstr &MI = *II;
-
- for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
- const MachineOperand &MO = MI.getOperand(i);
-
- if (MO.isRegister() && MO.isDef() &&
- MRegisterInfo::isVirtualRegister(MO.getReg())) {
- VRegDefs.grow(MO.getReg());
- VRegDefs[MO.getReg()] = &MI;
- }
- }
- }
- }
-}
-
/// HoistRegion - Walk the specified region of the CFG (defined by all blocks
/// dominated by the specified block, and that are in the current loop) in
depth
/// first order w.r.t the DominatorTree. This allows us to visit definitions
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