[TargetSchedule] shrink interface for init(); NFCI

The TargetSchedModel is always initialized using the TargetSubtargetInfo's 
MCSchedModel and TargetInstrInfo, so we don't need to extract those and 
pass 3 parameters to init().

Differential Revision: https://reviews.llvm.org/D44789

llvm-svn: 329540

1 files changed, 4 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/TargetSchedule.cpp b/llvm/lib/CodeGen/TargetSchedule.cpp
index a811450c2ae..b8f284880af 100644
--- a/llvm/lib/CodeGen/TargetSchedule.cpp
+++ b/llvm/lib/CodeGen/TargetSchedule.cpp
@@ -61,12 +61,10 @@ static unsigned lcm(unsigned A, unsigned B) {
   return LCM;
 }
 
-void TargetSchedModel::init(const MCSchedModel &sm,
-                            const TargetSubtargetInfo *sti,
-                            const TargetInstrInfo *tii) {
-  SchedModel = sm;
-  STI = sti;
-  TII = tii;
+void TargetSchedModel::init(const TargetSubtargetInfo *TSInfo) {
+  STI = TSInfo;
+  SchedModel = TSInfo->getSchedModel();
+  TII = TSInfo->getInstrInfo();
   STI->initInstrItins(InstrItins);
 
   unsigned NumRes = SchedModel.getNumProcResourceKinds();