isTriviallyReMaterializable checks the

TargetInstrDesc::isRematerializable flag, so it isn't necessary to do
this check in its callers.

llvm-svn: 83671

llvm/lib/CodeGen/LiveIntervalAnalysis.cpp

@@ -1423,8 +1423,7 @@ bool LiveIntervals::isReMaterializable(const LiveInterval &li,
   // If the target-specific rules don't identify an instruction as
   // being trivially rematerializable, use some target-independent
   // rules.
-  if (!MI->getDesc().isRematerializable() ||
-      !tii_->isTriviallyReMaterializable(MI)) {
+  if (!tii_->isTriviallyReMaterializable(MI)) {
     if (!EnableAggressiveRemat)
       return false;
 

llvm/lib/CodeGen/MachineInstr.cpp

@@ -960,8 +960,7 @@ bool MachineInstr::isSafeToMove(const TargetInstrInfo *TII,
 bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII,
                                  unsigned DstReg) const {
   bool SawStore = false;
-  if (!getDesc().isRematerializable() ||
-      !TII->isTriviallyReMaterializable(this) ||
+  if (!TII->isTriviallyReMaterializable(this) ||
       !isSafeToMove(TII, SawStore))
     return false;
   for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {

llvm/lib/CodeGen/MachineLICM.cpp

@@ -322,7 +322,7 @@ bool MachineLICM::IsProfitableToHoist(MachineInstr &MI) {
   // FIXME: For now, only hoist re-materilizable instructions. LICM will
   // increase register pressure. We want to make sure it doesn't increase
   // spilling.
-  if (!TID.isRematerializable() || !TII->isTriviallyReMaterializable(&MI))
+  if (!TII->isTriviallyReMaterializable(&MI))
     return false;
 
   // If result(s) of this instruction is used by PHIs, then don't hoist it.

llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp

@@ -646,8 +646,7 @@ bool SimpleRegisterCoalescing::ReMaterializeTrivialDef(LiveInterval &SrcInt,
   const TargetInstrDesc &TID = DefMI->getDesc();
   if (!TID.isAsCheapAsAMove())
     return false;
-  if (!DefMI->getDesc().isRematerializable() ||
-      !tii_->isTriviallyReMaterializable(DefMI))
+  if (!tii_->isTriviallyReMaterializable(DefMI))
     return false;
   bool SawStore = false;
   if (!DefMI->isSafeToMove(tii_, SawStore))