RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-01-15 06:18:50 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Some minor scheduler changes.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25597 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-01-25 09:07:50 +00:00
parent 0d718e9afc
commit 0993f1d833
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
include/llvm/CodeGen/ScheduleDAG.h
View File

@ -37,6 +37,7 @@ namespace llvm {
// Scheduling heuristics
enum SchedHeuristics {
defaultScheduling, // Let the target specify its preference.
noScheduling, // No scheduling, emit breath first sequence.
simpleScheduling, // Two pass, min. critical path, max. utilization.
simpleNoItinScheduling, // Same as above exact using generic latency.
@ -51,6 +52,8 @@ 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
@ -58,10 +61,12 @@ namespace llvm {
public:
// Ctor.
NodeGroup() : Dominator(NULL), Pending(0) {}
NodeGroup() : Top(NULL), Bottom(NULL), Dominator(NULL), Pending(0) {}
// Accessors
inline void setDominator(NodeInfo *D) { Dominator = D; }
inline NodeInfo *getTop() { return Top; }
inline NodeInfo *getBottom() { return Bottom; }
inline NodeInfo *getDominator() { return Dominator; }
inline void setLatency(unsigned L) { Latency = L; }
inline unsigned getLatency() { return Latency; }
@ -94,7 +99,7 @@ namespace llvm {
class NodeInfo {
private:
int Pending; // Number of visits pending before
// adding to order
// adding to order
public:
SDNode *Node; // DAG node
InstrStage *StageBegin; // First stage in itinerary
@ -279,7 +284,7 @@ namespace llvm {
/// isPassiveNode - Return true if the node is a non-scheduled leaf.
///
bool isPassiveNode(SDNode *Node) {
static bool isPassiveNode(SDNode *Node) {
if (isa<ConstantSDNode>(Node)) return true;
if (isa<RegisterSDNode>(Node)) return true;
if (isa<GlobalAddressSDNode>(Node)) return true;
@ -316,7 +321,7 @@ namespace llvm {
void dump(const char *tag) const;
void dump() const;
virtual void dump() const;
private:
/// PrepareNodeInfo - Set up the basic minimum node info for scheduling.