[llvm-commits] [llvm] r110383 - /llvm/trunk/lib/Analysis/LazyValueInfo.cpp
Owen Anderson
resistor at mac.com
Thu Aug 5 15:10:46 PDT 2010
Author: resistor
Date: Thu Aug 5 17:10:46 2010
New Revision: 110383
URL: http://llvm.org/viewvc/llvm-project?rev=110383&view=rev
Log:
Split the tag and value members of LVILatticeVal in preparation for expanding the lattice to something that won't fit in two bits.
Modified:
llvm/trunk/lib/Analysis/LazyValueInfo.cpp
Modified: llvm/trunk/lib/Analysis/LazyValueInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/LazyValueInfo.cpp?rev=110383&r1=110382&r2=110383&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/LazyValueInfo.cpp (original)
+++ llvm/trunk/lib/Analysis/LazyValueInfo.cpp Thu Aug 5 17:10:46 2010
@@ -24,7 +24,6 @@
#include "llvm/Support/ValueHandle.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/STLExtras.h"
using namespace llvm;
@@ -65,10 +64,11 @@
/// Val: This stores the current lattice value along with the Constant* for
/// the constant if this is a 'constant' or 'notconstant' value.
- PointerIntPair<Constant *, 2, LatticeValueTy> Val;
+ LatticeValueTy Tag;
+ Constant *Val;
public:
- LVILatticeVal() : Val(0, undefined) {}
+ LVILatticeVal() : Tag(undefined), Val(0) {}
static LVILatticeVal get(Constant *C) {
LVILatticeVal Res;
@@ -81,26 +81,26 @@
return Res;
}
- bool isUndefined() const { return Val.getInt() == undefined; }
- bool isConstant() const { return Val.getInt() == constant; }
- bool isNotConstant() const { return Val.getInt() == notconstant; }
- bool isOverdefined() const { return Val.getInt() == overdefined; }
+ bool isUndefined() const { return Tag == undefined; }
+ bool isConstant() const { return Tag == constant; }
+ bool isNotConstant() const { return Tag == notconstant; }
+ bool isOverdefined() const { return Tag == overdefined; }
Constant *getConstant() const {
assert(isConstant() && "Cannot get the constant of a non-constant!");
- return Val.getPointer();
+ return Val;
}
Constant *getNotConstant() const {
assert(isNotConstant() && "Cannot get the constant of a non-notconstant!");
- return Val.getPointer();
+ return Val;
}
/// markOverdefined - Return true if this is a change in status.
bool markOverdefined() {
if (isOverdefined())
return false;
- Val.setInt(overdefined);
+ Tag = overdefined;
return true;
}
@@ -112,9 +112,9 @@
}
assert(isUndefined());
- Val.setInt(constant);
+ Tag = constant;
assert(V && "Marking constant with NULL");
- Val.setPointer(V);
+ Val = V;
return true;
}
@@ -130,9 +130,9 @@
else
assert(isUndefined());
- Val.setInt(notconstant);
+ Tag = notconstant;
assert(V && "Marking constant with NULL");
- Val.setPointer(V);
+ Val = V;
return true;
}
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