[llvm-commits] [llvm] r164826 - /llvm/trunk/include/llvm/ADT/PackedVector.h
Benjamin Kramer
benny.kra at googlemail.com
Fri Sep 28 09:40:29 PDT 2012
Author: d0k
Date: Fri Sep 28 11:40:29 2012
New Revision: 164826
URL: http://llvm.org/viewvc/llvm-project?rev=164826&view=rev
Log:
PackedVector: Make the BitVector implementation configurable.
Modified:
llvm/trunk/include/llvm/ADT/PackedVector.h
Modified: llvm/trunk/include/llvm/ADT/PackedVector.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/PackedVector.h?rev=164826&r1=164825&r2=164826&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/PackedVector.h (original)
+++ llvm/trunk/include/llvm/ADT/PackedVector.h Fri Sep 28 11:40:29 2012
@@ -19,32 +19,32 @@
namespace llvm {
-template <typename T, unsigned BitNum, bool isSigned>
+template <typename T, unsigned BitNum, typename BitVectorTy, bool isSigned>
class PackedVectorBase;
// This won't be necessary if we can specialize members without specializing
// the parent template.
-template <typename T, unsigned BitNum>
-class PackedVectorBase<T, BitNum, false> {
+template <typename T, unsigned BitNum, typename BitVectorTy>
+class PackedVectorBase<T, BitNum, BitVectorTy, false> {
protected:
- static T getValue(const llvm::BitVector &Bits, unsigned Idx) {
+ static T getValue(const BitVectorTy &Bits, unsigned Idx) {
T val = T();
for (unsigned i = 0; i != BitNum; ++i)
val = T(val | ((Bits[(Idx << (BitNum-1)) + i] ? 1UL : 0UL) << i));
return val;
}
- static void setValue(llvm::BitVector &Bits, unsigned Idx, T val) {
+ static void setValue(BitVectorTy &Bits, unsigned Idx, T val) {
assert((val >> BitNum) == 0 && "value is too big");
for (unsigned i = 0; i != BitNum; ++i)
Bits[(Idx << (BitNum-1)) + i] = val & (T(1) << i);
}
};
-template <typename T, unsigned BitNum>
-class PackedVectorBase<T, BitNum, true> {
+template <typename T, unsigned BitNum, typename BitVectorTy>
+class PackedVectorBase<T, BitNum, BitVectorTy, true> {
protected:
- static T getValue(const llvm::BitVector &Bits, unsigned Idx) {
+ static T getValue(const BitVectorTy &Bits, unsigned Idx) {
T val = T();
for (unsigned i = 0; i != BitNum-1; ++i)
val = T(val | ((Bits[(Idx << (BitNum-1)) + i] ? 1UL : 0UL) << i));
@@ -53,7 +53,7 @@
return val;
}
- static void setValue(llvm::BitVector &Bits, unsigned Idx, T val) {
+ static void setValue(BitVectorTy &Bits, unsigned Idx, T val) {
if (val < 0) {
val = ~val;
Bits.set((Idx << (BitNum-1)) + BitNum-1);
@@ -71,11 +71,12 @@
/// @endcode
/// will create a vector accepting values -2, -1, 0, 1. Any other value will hit
/// an assertion.
-template <typename T, unsigned BitNum>
-class PackedVector : public PackedVectorBase<T, BitNum,
+template <typename T, unsigned BitNum, typename BitVectorTy = BitVector>
+class PackedVector : public PackedVectorBase<T, BitNum, BitVectorTy,
std::numeric_limits<T>::is_signed> {
- llvm::BitVector Bits;
- typedef PackedVectorBase<T, BitNum, std::numeric_limits<T>::is_signed> base;
+ BitVectorTy Bits;
+ typedef PackedVectorBase<T, BitNum, BitVectorTy,
+ std::numeric_limits<T>::is_signed> base;
public:
class reference {
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