Allow target to provide its own hazard recognizer to post-ra scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105862 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp
index 9714ea6..d41463f 100644
--- a/lib/CodeGen/PostRASchedulerList.cpp
+++ b/lib/CodeGen/PostRASchedulerList.cpp
@@ -67,8 +67,8 @@
cl::init("none"), cl::Hidden);
static cl::opt<bool>
EnablePostRAHazardAvoidance("avoid-hazards",
- cl::desc("Enable exact hazard avoidance"),
- cl::init(true), cl::Hidden);
+ cl::desc("Enable exact hazard avoidance"),
+ cl::init(true), cl::Hidden);
// If DebugDiv > 0 then only schedule MBB with (ID % DebugDiv) == DebugMod
static cl::opt<int>
@@ -237,10 +237,10 @@
const MachineLoopInfo &MLI = getAnalysis<MachineLoopInfo>();
const MachineDominatorTree &MDT = getAnalysis<MachineDominatorTree>();
- const InstrItineraryData &InstrItins = Fn.getTarget().getInstrItineraryData();
- ScheduleHazardRecognizer *HR = EnablePostRAHazardAvoidance ?
- (ScheduleHazardRecognizer *)new ExactHazardRecognizer(InstrItins) :
- (ScheduleHazardRecognizer *)new SimpleHazardRecognizer();
+ const TargetMachine &TM = Fn.getTarget();
+ const InstrItineraryData &InstrItins = TM.getInstrItineraryData();
+ ScheduleHazardRecognizer *HR =
+ TM.getInstrInfo()->CreateTargetPostRAHazardRecognizer(InstrItins);
AntiDepBreaker *ADB =
((AntiDepMode == TargetSubtarget::ANTIDEP_ALL) ?
(AntiDepBreaker *)new AggressiveAntiDepBreaker(Fn, CriticalPathRCs) :
@@ -719,6 +719,16 @@
#endif
}
+// Default implementation of CreateTargetPostRAHazardRecognizer. This should
+// be in TargetInstrInfoImpl.cpp except it reference local command line
+// option EnablePostRAHazardAvoidance
+ScheduleHazardRecognizer *TargetInstrInfoImpl::
+CreateTargetPostRAHazardRecognizer(const InstrItineraryData &II) const {
+ if (EnablePostRAHazardAvoidance)
+ return (ScheduleHazardRecognizer *)new ExactHazardRecognizer(II);
+ return (ScheduleHazardRecognizer *)new SimpleHazardRecognizer();
+}
+
//===----------------------------------------------------------------------===//
// Public Constructor Functions
//===----------------------------------------------------------------------===//