Update an embarassing out-of-date comment.

llvm-svn: 208137
This commit is contained in:
Andrew Trick 2014-05-06 22:18:43 +00:00
parent cfc57bb6e3
commit d0d8cb1d21
1 changed files with 6 additions and 5 deletions

View File

@ -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"));