[PowerPC] initialize SchedModel according to platform.

Chen Zheng · Chen Zheng · commit ed46a5f15d6d · 2019-04-09T01:25:25.000Z
Differential Revision: https://reviews.llvm.org/D60177 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357962 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCCTRLoops.cpp b/lib/Target/PowerPC/PPCCTRLoops.cpp
@@ -202,6 +202,7 @@ bool PPCCTRLoops::runOnFunction(Function &F) {
   auto *TLIP = getAnalysisIfAvailable<TargetLibraryInfoWrapperPass>();
   LibInfo = TLIP ? &TLIP->getTLI() : nullptr;
   PreserveLCSSA = mustPreserveAnalysisID(LCSSAID);
+  SchedModel.init(STI);
 
   bool MadeChange = false;
 
diff --git a/test/CodeGen/PowerPC/ctrloop-shortLoops.ll b/test/CodeGen/PowerPC/ctrloop-shortLoops.ll
@@ -122,7 +122,7 @@ for.end:                                          ; preds = %if.end
 ; a2q should use mtctr, but pwr8 should not use mtctr.
 define signext i32 @testTripCount5() {
 ; CHECK-LABEL: testTripCount5:
-; CHECK-PWR8: mtctr
+; CHECK-PWR8-NOT: mtctr
 ; CHECK-A2Q: mtctr
  
 entry:
