Revert "[ThinLTO] Add call edges' relative block frequency to per-module summary."

Causes buildbot regressions.

llvm-svn: 323358

1 files changed, 3 insertions, 18 deletions

diff --git a/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp b/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
index e4a18b7bd45..cf2fe7776dd 100644
--- a/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
+++ b/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
@@ -273,24 +273,9 @@ computeFunctionSummary(ModuleSummaryIndex &Index, const Module &M,
         // to record the call edge to the alias in that case. Eventually
         // an alias summary will be created to associate the alias and
         // aliasee.
-        auto &ValueInfo = CallGraphEdges[Index.getOrInsertValueInfo(
-            cast<GlobalValue>(CalledValue))];
-        ValueInfo.updateHotness(Hotness);
-        // Add the relative block frequency to CalleeInfo if there is no profile
-        // information.
-        if (BFI != nullptr && Hotness == CalleeInfo::HotnessType::Unknown) {
-          auto BBFreq = BFI->getBlockFreq(CI->getParent()).getFrequency();
-          // FIXME: This might need some scaling to prevent BBFreq values from
-          // being rounded down to 0.
-          auto EntryFreq = BFI->getEntryFreq();
-          // Block frequencies can be directly set for a block and so we need to
-          // handle the case of entry frequency being 0.
-          if (EntryFreq)
-            BBFreq /= EntryFreq;
-          else
-            BBFreq = 0;
-          ValueInfo.updateRelBlockFreq(BBFreq);
-        }
+        CallGraphEdges[Index.getOrInsertValueInfo(
+                           cast<GlobalValue>(CalledValue))]
+            .updateHotness(Hotness);
       } else {
         // Skip inline assembly calls.
         if (CI && CI->isInlineAsm())