[ThinLTO] Add option for printing import failure reasons

Summary:
Adds the option for the printing of summary information about functions
considered but rejected for importing during the thin link.

Reviewers: davidxl

Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D50881

llvm-svn: 340047

1 files changed, 0 insertions, 16 deletions

diff --git a/llvm/lib/IR/AsmWriter.cpp b/llvm/lib/IR/AsmWriter.cpp
index fc5eca19c84..27894c50bc9 100644
--- a/llvm/lib/IR/AsmWriter.cpp
+++ b/llvm/lib/IR/AsmWriter.cpp
@@ -2850,22 +2850,6 @@ static std::string getLinkageNameWithSpace(GlobalValue::LinkageTypes LT) {
   return getLinkageName(LT) + " ";
 }
 
-static const char *getHotnessName(CalleeInfo::HotnessType HT) {
-  switch (HT) {
-  case CalleeInfo::HotnessType::Unknown:
-    return "unknown";
-  case CalleeInfo::HotnessType::Cold:
-    return "cold";
-  case CalleeInfo::HotnessType::None:
-    return "none";
-  case CalleeInfo::HotnessType::Hot:
-    return "hot";
-  case CalleeInfo::HotnessType::Critical:
-    return "critical";
-  }
-  llvm_unreachable("invalid hotness");
-}
-
 void AssemblyWriter::printFunctionSummary(const FunctionSummary *FS) {
   Out << ", insts: " << FS->instCount();