[llvm-commits] CVS: llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

[Evan Cheng]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

SelectionDAGISel.cpp updated: 1.228 -> 1.229
---
Log message:

Added a temporary option -no-isel-fold-inflight to control whether a "inflight"
node can be folded.


---
Diffs of the changes:  (+12 -1)

 SelectionDAGISel.cpp |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletion(-)


Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.228 llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.229
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1.228	Thu Apr 27 03:29:42 2006
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp	Thu Apr 27 21:09:19 2006
@@ -58,6 +58,14 @@
 static const bool ViewISelDAGs = 0, ViewSchedDAGs = 0;
 #endif
 
+namespace {
+static cl::opt<bool>
+NoFoldNodeInFlight(
+   "no-isel-fold-inflight",
+   cl::Hidden,
+   cl::desc("Do not attempt to fold a node even if it is being selected"));
+}
+
 // Scheduling heuristics
 enum SchedHeuristics {
   defaultScheduling,      // Let the target specify its preference.
@@ -3170,7 +3178,10 @@
   DAG.Combine(true);
   
   if (ViewISelDAGs) DAG.viewGraph();
-  
+
+  // TEMPORARY.
+  FoldNodeInFlight = !NoFoldNodeInFlight;
+
   // Third, instruction select all of the operations to machine code, adding the
   // code to the MachineBasicBlock.
   InstructionSelectBasicBlock(DAG);