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

1 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/Target/R600/R600Packetizer.cpp b/llvm/lib/Target/R600/R600Packetizer.cpp
index a6d8c95f3f4..cb2eeeaaf7d 100644
--- a/llvm/lib/Target/R600/R600Packetizer.cpp
+++ b/llvm/lib/Target/R600/R600Packetizer.cpp
@@ -152,7 +152,7 @@ public:
                      MachineDominatorTree &MDT)
       : VLIWPacketizerList(MF, MLI, MDT, true),
         TII(static_cast<const R600InstrInfo *>(
-            MF.getTarget().getSubtargetImpl()->getInstrInfo())),
+            MF.getSubtarget().getInstrInfo())),
         TRI(TII->getRegisterInfo()) {
     VLIW5 = !MF.getTarget().getSubtarget<AMDGPUSubtarget>().hasCaymanISA();
   }
@@ -329,8 +329,7 @@ public:
 };
 
 bool R600Packetizer::runOnMachineFunction(MachineFunction &Fn) {
-  const TargetInstrInfo *TII =
-      Fn.getTarget().getSubtargetImpl()->getInstrInfo();
+  const TargetInstrInfo *TII = Fn.getSubtarget().getInstrInfo();
   MachineLoopInfo &MLI = getAnalysis<MachineLoopInfo>();
   MachineDominatorTree &MDT = getAnalysis<MachineDominatorTree>();