[PATCH] D115981: [InstrProf] Mark counters as used in debug correlation mode

[Ellis Hoag via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGa699b2f1c029: [InstrProf] Mark counters as used in debug correlation mode (authored by ellis).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D115981/new/

https://reviews.llvm.org/D115981

Files:
  llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp


Index: llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
===================================================================
--- llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
+++ llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
@@ -997,8 +997,11 @@
         ConstantExpr::getBitCast(ValuesVar, Type::getInt8PtrTy(Ctx));
   }
 
-  if (DebugInfoCorrelate)
+  if (DebugInfoCorrelate) {
+    // Mark the counter variable as used so that it isn't optimized out.
+    CompilerUsedVars.push_back(PD.RegionCounters);
     return PD.RegionCounters;
+  }
 
   // Create data variable.
   auto *IntPtrTy = M->getDataLayout().getIntPtrType(M->getContext());


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