ThinLTO : Import always_inline functions irrespective of the threshold

Summary: A user can force a function to be inlined by specifying the always_inline attribute. Currently, thinlto implementation is not aware of always_inline functions and does not guarantee import of such functions, which in turn can prevent inlining of such functions.

Patch by Bharathi Seshadri <bseshadr@cisco.com>

Reviewers: tejohnson

Reviewed By: tejohnson

Subscribers: mehdi_amini, inglorion, hiraditya, steven_wu, dexonsmith, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70014

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/IR/ModuleSummaryIndex.cpp b/llvm/lib/IR/ModuleSummaryIndex.cpp
index b575b5b6442..518027aba5b 100644
--- a/llvm/lib/IR/ModuleSummaryIndex.cpp
+++ b/llvm/lib/IR/ModuleSummaryIndex.cpp
@@ -330,7 +330,7 @@ static std::string fflagsToString(FunctionSummary::FFlags F) {
   auto FlagValue = [](unsigned V) { return V ? '1' : '0'; };
   char FlagRep[] = {FlagValue(F.ReadNone),     FlagValue(F.ReadOnly),
                     FlagValue(F.NoRecurse),    FlagValue(F.ReturnDoesNotAlias),
-                    FlagValue(F.NoInline), 0};
+                    FlagValue(F.NoInline), FlagValue(F.AlwaysInline), 0};
 
   return FlagRep;
 }