MachineLICM: Use TargetSchedModel instead of just itineraries

This will use Itinieraries if available, but will also work if just a
MCSchedModel is available.

Differential Revision: http://reviews.llvm.org/D10428

llvm-svn: 239658
diff --git a/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp b/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
index 93dc423..b3329e6 100644
--- a/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -28,6 +28,7 @@
 #include "llvm/CodeGen/MachineMemOperand.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/SelectionDAGNodes.h"
+#include "llvm/CodeGen/TargetSchedule.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/GlobalValue.h"
@@ -3993,7 +3994,7 @@
 }
 
 bool ARMBaseInstrInfo::
-hasHighOperandLatency(const InstrItineraryData *ItinData,
+hasHighOperandLatency(const TargetSchedModel &SchedModel,
                       const MachineRegisterInfo *MRI,
                       const MachineInstr *DefMI, unsigned DefIdx,
                       const MachineInstr *UseMI, unsigned UseIdx) const {
@@ -4005,9 +4006,8 @@
     return true;
 
   // Hoist VFP / NEON instructions with 4 or higher latency.
-  int Latency = computeOperandLatency(ItinData, DefMI, DefIdx, UseMI, UseIdx);
-  if (Latency < 0)
-    Latency = getInstrLatency(ItinData, DefMI);
+  unsigned Latency
+    = SchedModel.computeOperandLatency(DefMI, DefIdx, UseMI, UseIdx);
   if (Latency <= 3)
     return false;
   return DDomain == ARMII::DomainVFP || DDomain == ARMII::DomainNEON ||
@@ -4015,8 +4015,9 @@
 }
 
 bool ARMBaseInstrInfo::
-hasLowDefLatency(const InstrItineraryData *ItinData,
+hasLowDefLatency(const TargetSchedModel &SchedModel,
                  const MachineInstr *DefMI, unsigned DefIdx) const {
+  const InstrItineraryData *ItinData = SchedModel.getInstrItineraries();
   if (!ItinData || ItinData->isEmpty())
     return false;
 
diff --git a/llvm/lib/Target/ARM/ARMBaseInstrInfo.h b/llvm/lib/Target/ARM/ARMBaseInstrInfo.h
index 1f9e983..b4706e3 100644
--- a/llvm/lib/Target/ARM/ARMBaseInstrInfo.h
+++ b/llvm/lib/Target/ARM/ARMBaseInstrInfo.h
@@ -327,12 +327,12 @@
   int getInstrLatency(const InstrItineraryData *ItinData,
                       SDNode *Node) const override;
 
-  bool hasHighOperandLatency(const InstrItineraryData *ItinData,
+  bool hasHighOperandLatency(const TargetSchedModel &SchedModel,
                              const MachineRegisterInfo *MRI,
                              const MachineInstr *DefMI, unsigned DefIdx,
                              const MachineInstr *UseMI,
                              unsigned UseIdx) const override;
-  bool hasLowDefLatency(const InstrItineraryData *ItinData,
+  bool hasLowDefLatency(const TargetSchedModel &SchedModel,
                         const MachineInstr *DefMI,
                         unsigned DefIdx) const override;
 
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.h b/llvm/lib/Target/PowerPC/PPCInstrInfo.h
index b318b17..e2d6346 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.h
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.h
@@ -106,7 +106,7 @@
                                               UseNode, UseIdx);
   }
 
-  bool hasLowDefLatency(const InstrItineraryData *ItinData,
+  bool hasLowDefLatency(const TargetSchedModel &SchedModel,
                         const MachineInstr *DefMI,
                         unsigned DefIdx) const override {
     // Machine LICM should hoist all instructions in low-register-pressure
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp
index cdaed77..928b9c7 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.cpp
+++ b/llvm/lib/Target/X86/X86InstrInfo.cpp
@@ -6217,7 +6217,7 @@
 }
 
 bool X86InstrInfo::
-hasHighOperandLatency(const InstrItineraryData *ItinData,
+hasHighOperandLatency(const TargetSchedModel &SchedModel,
                       const MachineRegisterInfo *MRI,
                       const MachineInstr *DefMI, unsigned DefIdx,
                       const MachineInstr *UseMI, unsigned UseIdx) const {
diff --git a/llvm/lib/Target/X86/X86InstrInfo.h b/llvm/lib/Target/X86/X86InstrInfo.h
index a716ca0..3d47d1d 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.h
+++ b/llvm/lib/Target/X86/X86InstrInfo.h
@@ -433,7 +433,7 @@
 
   bool isHighLatencyDef(int opc) const override;
 
-  bool hasHighOperandLatency(const InstrItineraryData *ItinData,
+  bool hasHighOperandLatency(const TargetSchedModel &SchedModel,
                              const MachineRegisterInfo *MRI,
                              const MachineInstr *DefMI, unsigned DefIdx,
                              const MachineInstr *UseMI,