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No need to keep track of top and bottom nodes in a group since the vector is

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already in order. Thanks Jim for pointing it out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25608 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-01-25 18:54:24 +00:00
parent 0577a22c67
commit 46c01cfe9f
2 changed files with 3 additions and 10 deletions
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8
include/llvm/CodeGen/ScheduleDAG.h
View File

@ -52,8 +52,6 @@ namespace llvm {
class NodeGroup {
private:
NIVector Members; // Group member nodes
NodeInfo *Top;
NodeInfo *Bottom;
NodeInfo *Dominator; // Node with highest latency
unsigned Latency; // Total latency of the group
int Pending; // Number of visits pending before
@ -61,12 +59,12 @@ namespace llvm {
public:
// Ctor.
NodeGroup() : Top(NULL), Bottom(NULL), Dominator(NULL), Pending(0) {}
NodeGroup() : Dominator(NULL), Pending(0) {}
// Accessors
inline void setDominator(NodeInfo *D) { Dominator = D; }
inline NodeInfo *getTop() { return Top; }
inline NodeInfo *getBottom() { return Bottom; }
inline NodeInfo *getTop() { return Members[0]; }
inline NodeInfo *getBottom() { return Members[Members.size()-1]; }
inline NodeInfo *getDominator() { return Dominator; }
inline void setLatency(unsigned L) { Latency = L; }
inline unsigned getLatency() { return Latency; }

5
lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
View File

@ -464,7 +464,6 @@ void NodeGroup::Add(NodeInfo *D, NodeInfo *U) {
// Merge the two lists
DGroup->group_insert(DGroup->group_end(),
UGroup->group_begin(), UGroup->group_end());
DGroup->Bottom = UGroup->Bottom;
} else if (DGroup) {
// Make user member of definers group
U->Group = DGroup;
@ -477,7 +476,6 @@ void NodeGroup::Add(NodeInfo *D, NodeInfo *U) {
DGroup->addPending(-CountInternalUses(DNI, U));
}
DGroup->group_push_back(U);
DGroup->Bottom = U;
} else if (UGroup) {
// Make definer member of users group
D->Group = UGroup;
@ -490,14 +488,11 @@ void NodeGroup::Add(NodeInfo *D, NodeInfo *U) {
UGroup->addPending(-CountInternalUses(D, UNI));
}
UGroup->group_insert(UGroup->group_begin(), D);
UGroup->Top = D;
} else {
D->Group = U->Group = DGroup = new NodeGroup();
DGroup->addPending(D->Node->use_size() + U->Node->use_size() -
CountInternalUses(D, U));
DGroup->group_push_back(D);
DGroup->group_push_back(U);
DGroup->Top = D;
DGroup->Bottom = U;
}
}