Added extra constructor for superblocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21642 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 28 insertions, 0 deletions

diff --git a/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.cpp b/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.cpp
index cc2edf2f05..97f047bbbf 100644
--- a/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.cpp
+++ b/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.cpp
@@ -167,6 +167,28 @@ MSchedGraph::MSchedGraph(const MachineBasicBlock *bb,
   //addBranchEdges();
 }
 
+//Create a graph for a machine block. The ignoreInstrs map is so that
+//we ignore instructions associated to the index variable since this
+//is a special case in Modulo Scheduling.  We only want to deal with
+//the body of the loop.
+MSchedGraph::MSchedGraph(std::vector<const MachineBasicBlock*> &bbs, 
+			 const TargetMachine &targ, 
+			 std::map<const MachineInstr*, unsigned> &ignoreInstrs, 
+			 DependenceAnalyzer &DA, 
+			 std::map<MachineInstr*, Instruction*> &machineTollvm)
+  : BBs(bbs), Target(targ) {
+
+  //Make sure there is at least one BB and it is not null,
+  assert(((bbs.size() >= 1) &&  bbs[1] != NULL) && "Basic Block is null");
+  
+  //Create nodes and edges for this BB
+  buildNodesAndEdges(ignoreInstrs, DA, machineTollvm);
+
+  //Experimental!
+  //addBranchEdges();
+}
+
+
 //Copies the graph and keeps a map from old to new nodes
 MSchedGraph::MSchedGraph(const MSchedGraph &G, 
 			 std::map<MSchedGraphNode*, MSchedGraphNode*> &newNodes) 
diff --git a/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.h b/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.h
index 6820ca9cbe..c3f7b6995f 100644
--- a/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.h
+++ b/lib/Target/SparcV9/ModuloScheduling/MSchedGraph.h
@@ -259,6 +259,12 @@ namespace llvm {
     //Copy constructor with maps to link old nodes to new nodes
     MSchedGraph(const MSchedGraph &G, std::map<MSchedGraphNode*, MSchedGraphNode*> &newNodes);
     
+    MSchedGraph(std::vector<const MachineBasicBlock*> &bbs, 
+		const TargetMachine &targ, 
+		std::map<const MachineInstr*, unsigned> &ignoreInstrs, 
+		DependenceAnalyzer &DA, 
+		std::map<MachineInstr*, Instruction*> &machineTollvm);
+
     //Print graph
     void print(std::ostream &os) const;