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Use a MachineConstantPoolEntry struct instead of a pair to hold

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constant pool entries.

llvm-svn: 26075
This commit is contained in:
Chris Lattner 2006-02-09 04:21:49 +00:00
parent 837a816470
commit 10af703b36
1 changed files with 15 additions and 5 deletions
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20
include/llvm/CodeGen/MachineConstantPool.h
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@ -30,10 +30,20 @@ namespace llvm {
class Constant;
/// MachineConstantPoolEntry - One entry in the constant pool.
///
struct MachineConstantPoolEntry {
/// Val - The constant itself.
Constant *Val;
/// Alignment - The alignment of the constant.
unsigned Alignment;
MachineConstantPoolEntry(Constant *V, unsigned A) : Val(V), Alignment(A) {}
};
class MachineConstantPool {
std::vector<std::pair<Constant*,unsigned> > Constants;
std::vector<MachineConstantPoolEntry> Constants;
public:
/// getConstantPoolIndex - Create a new entry in the constant pool or return
/// an existing one. User must specify an alignment in bytes for the object.
///
@ -44,9 +54,9 @@ public:
//
// FIXME, this could be made much more efficient for large constant pools.
for (unsigned i = 0, e = Constants.size(); i != e; ++i)
if (Constants[i].first == C && Constants[i].second >= Alignment)
if (Constants[i].Val == C && Constants[i].Alignment >= Alignment)
return i;
Constants.push_back(std::make_pair(C, Alignment));
Constants.push_back(MachineConstantPoolEntry(C, Alignment));
return Constants.size()-1;
}
@ -54,7 +64,7 @@ public:
///
bool isEmpty() const { return Constants.empty(); }
const std::vector<std::pair<Constant*,unsigned> > &getConstants() const {
const std::vector<MachineConstantPoolEntry> &getConstants() const {
return Constants;
}