Have MachineFunction cache a pointer to the subtarget to make lookups
shorter/easier and have the DAG use that to do the same lookup. This
can be used in the future for TargetMachine based caching lookups from
the MachineFunction easily.
Update the MIPS subtarget switching machinery to update this pointer
at the same time it runs.
llvm-svn: 214838
diff --git a/llvm/lib/CodeGen/TargetSchedule.cpp b/llvm/lib/CodeGen/TargetSchedule.cpp
index b176729..3d240a9 100644
--- a/llvm/lib/CodeGen/TargetSchedule.cpp
+++ b/llvm/lib/CodeGen/TargetSchedule.cpp
@@ -290,8 +290,7 @@
// for predicated defs.
unsigned Reg = DefMI->getOperand(DefOperIdx).getReg();
const MachineFunction &MF = *DefMI->getParent()->getParent();
- const TargetRegisterInfo *TRI =
- MF.getTarget().getSubtargetImpl()->getRegisterInfo();
+ const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo();
if (!DepMI->readsRegister(Reg, TRI) && TII->isPredicated(DepMI))
return computeInstrLatency(DefMI);