diff options
Diffstat (limited to 'lib/Target/TargetSubtargetInfo.cpp')
| -rw-r--r-- | lib/Target/TargetSubtargetInfo.cpp | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/Target/TargetSubtargetInfo.cpp b/lib/Target/TargetSubtargetInfo.cpp index df8948f..3ca13da 100644 --- a/lib/Target/TargetSubtargetInfo.cpp +++ b/lib/Target/TargetSubtargetInfo.cpp @@ -24,11 +24,12 @@ TargetSubtargetInfo::TargetSubtargetInfo() {} TargetSubtargetInfo::~TargetSubtargetInfo() {} // Temporary option to compare overall performance change when moving from the -// SD scheduler to the MachineScheduler pass pipeline. It should be removed -// before 3.4. The normal way to enable/disable the MachineScheduling pass -// itself is by using -enable-misched. For targets that already use MI sched -// (via MySubTarget::enableMachineScheduler()) -misched-bench=false negates the -// subtarget hook. +// SD scheduler to the MachineScheduler pass pipeline. This is convenient for +// benchmarking during the transition from SD to MI scheduling. Once armv7 makes +// the switch, it should go away. The normal way to enable/disable the +// MachineScheduling pass itself is by using -enable-misched. For targets that +// already use MI sched (via MySubTarget::enableMachineScheduler()) +// -misched-bench=false negates the subtarget hook. static cl::opt<bool> BenchMachineSched("misched-bench", cl::Hidden, cl::desc("Migrate from the target's default SD scheduler to MI scheduler")); |