diff options
| -rw-r--r-- | include/llvm/CodeGen/SelectionDAGISel.h | 1 | ||||
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 13 |
2 files changed, 13 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/SelectionDAGISel.h b/include/llvm/CodeGen/SelectionDAGISel.h index 6ebcda35db..52d85f66d3 100644 --- a/include/llvm/CodeGen/SelectionDAGISel.h +++ b/include/llvm/CodeGen/SelectionDAGISel.h @@ -40,6 +40,7 @@ public: SSARegMap *RegMap; SelectionDAG *CurDAG; MachineBasicBlock *BB; + bool FoldNodeInFlight; SelectionDAGISel(TargetLowering &tli) : TLI(tli), JT(0,0,0,0) {} diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 5a97aa6b39..42ba89e41b 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -58,6 +58,14 @@ ViewSchedDAGs("view-sched-dags", cl::Hidden, 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 @@ void SelectionDAGISel::CodeGenAndEmitDAG(SelectionDAG &DAG) { 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); |