[MachineOutliner][NFC] Move outlined function remark into its own function

This pulls the OutlinedFunction remark out into its own function to make
the code a bit easier to read.

llvm-svn: 337849

1 files changed, 33 insertions, 31 deletions

diff --git a/llvm/lib/CodeGen/MachineOutliner.cpp b/llvm/lib/CodeGen/MachineOutliner.cpp
index dfd9d14ef56..1babe4239e5 100644
--- a/llvm/lib/CodeGen/MachineOutliner.cpp
+++ b/llvm/lib/CodeGen/MachineOutliner.cpp
@@ -716,6 +716,9 @@ struct MachineOutliner : public ModulePass {
       unsigned StringLen, std::vector<Candidate> &CandidatesForRepeatedSeq,
       OutlinedFunction &OF);
 
+  /// Remark output explaining that a function was outlined.
+  void emitOutlinedFunctionRemark(OutlinedFunction &OF);
+
   /// Find all repeated substrings that satisfy the outlining cost model.
   ///
   /// If a substring appears at least twice, then it must be represented by
@@ -859,6 +862,35 @@ void MachineOutliner::emitNotOutliningCheaperRemark(
   });
 }
 
+void MachineOutliner::emitOutlinedFunctionRemark(OutlinedFunction &OF) {
+  MachineBasicBlock *MBB = &*OF.MF->begin();
+  MachineOptimizationRemarkEmitter MORE(*OF.MF, nullptr);
+  MachineOptimizationRemark R(DEBUG_TYPE, "OutlinedFunction",
+                              MBB->findDebugLoc(MBB->begin()), MBB);
+  R << "Saved " << NV("OutliningBenefit", OF.getBenefit()) << " bytes by "
+    << "outlining " << NV("Length", OF.Sequence.size()) << " instructions "
+    << "from " << NV("NumOccurrences", OF.getOccurrenceCount())
+    << " locations. "
+    << "(Found at: ";
+
+  // Tell the user the other places the candidate was found.
+  for (size_t i = 0, e = OF.Candidates.size(); i < e; i++) {
+
+    // Skip over things that were pruned.
+    if (!OF.Candidates[i]->InCandidateList)
+      continue;
+
+    R << NV((Twine("StartLoc") + Twine(i)).str(),
+            OF.Candidates[i]->front()->getDebugLoc());
+    if (i != e - 1)
+      R << ", ";
+  }
+
+  R << ")";
+
+  MORE.emit(R);
+}
+
 unsigned MachineOutliner::findCandidates(
     SuffixTree &ST, const TargetInstrInfo &TII, InstructionMapper &Mapper,
     std::vector<std::shared_ptr<Candidate>> &CandidateList,
@@ -1233,37 +1265,7 @@ bool MachineOutliner::outline(
     // Does this candidate have a function yet?
     if (!OF.MF) {
       OF.MF = createOutlinedFunction(M, OF, Mapper);
-      MachineBasicBlock *MBB = &*OF.MF->begin();
-
-      // Output a remark telling the user that an outlined function was created,
-      // and explaining where it came from.
-      MachineOptimizationRemarkEmitter MORE(*OF.MF, nullptr);
-      MachineOptimizationRemark R(DEBUG_TYPE, "OutlinedFunction",
-                                  MBB->findDebugLoc(MBB->begin()), MBB);
-      R << "Saved " << NV("OutliningBenefit", OF.getBenefit())
-        << " bytes by "
-        << "outlining " << NV("Length", OF.Sequence.size()) << " instructions "
-        << "from " << NV("NumOccurrences", OF.getOccurrenceCount())
-        << " locations. "
-        << "(Found at: ";
-
-      // Tell the user the other places the candidate was found.
-      for (size_t i = 0, e = OF.Candidates.size(); i < e; i++) {
-
-        // Skip over things that were pruned.
-        if (!OF.Candidates[i]->InCandidateList)
-          continue;
-
-        R << NV(
-            (Twine("StartLoc") + Twine(i)).str(),
-            OF.Candidates[i]->front()->getDebugLoc());
-        if (i != e - 1)
-          R << ", ";
-      }
-
-      R << ")";
-
-      MORE.emit(R);
+      emitOutlinedFunctionRemark(OF);
       FunctionsCreated++;
     }