[CHR] Do not fetch BFI without profile summary (NFCI)

Do not compute BFI if PGO is not used. This addresses the
compile-time regression from https://reviews.llvm.org/D144769.

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp b/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp
index c38ec6b..83e6629 100644
--- a/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp
+++ b/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp
@@ -2080,14 +2080,14 @@ ControlHeightReductionPass::ControlHeightReductionPass() {
 PreservedAnalyses ControlHeightReductionPass::run(
     Function &F,
     FunctionAnalysisManager &FAM) {
-  auto &BFI = FAM.getResult<BlockFrequencyAnalysis>(F);
-  auto &DT = FAM.getResult<DominatorTreeAnalysis>(F);
   auto &MAMProxy = FAM.getResult<ModuleAnalysisManagerFunctionProxy>(F);
   auto PPSI = MAMProxy.getCachedResult<ProfileSummaryAnalysis>(*F.getParent());
   // If there is no profile summary, we should not do CHR.
   if (!PPSI || !PPSI->hasProfileSummary())
     return PreservedAnalyses::all();
   auto &PSI = *PPSI;
+  auto &BFI = FAM.getResult<BlockFrequencyAnalysis>(F);
+  auto &DT = FAM.getResult<DominatorTreeAnalysis>(F);
   auto &RI = FAM.getResult<RegionInfoAnalysis>(F);
   auto &ORE = FAM.getResult<OptimizationRemarkEmitterAnalysis>(F);
   bool Changed = CHR(F, BFI, DT, PSI, RI, ORE).run();