From c75a63d76f1c073d2b3e49b53c9adbb263d17322 Mon Sep 17 00:00:00 2001
From: Krzysztof Parzyszek <kparzysz@quicinc.com>
Date: Wed, 14 Dec 2022 14:06:25 -0800
Subject: [PATCH] [LLVM] Use std::nullopt instead of llvm::None

Pass `std::nullopt` to initialization of `PassBuilder` for `PGOOptions`.
LLVM is moving away from its own `Optional` type to `std::optional`.
---
 src/target/llvm/codegen_llvm.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/target/llvm/codegen_llvm.cc b/src/target/llvm/codegen_llvm.cc
index 7aae17788800..526bcf0fb26e 100644
--- a/src/target/llvm/codegen_llvm.cc
+++ b/src/target/llvm/codegen_llvm.cc
@@ -362,7 +362,7 @@ void CodeGenLLVM::Optimize() {
 
   llvm::PipelineTuningOptions pto = llvm::PipelineTuningOptions();
   llvm::PassInstrumentationCallbacks pic;
-  llvm::PassBuilder builder(tm, pto, llvm::None, &pic);
+  llvm::PassBuilder builder(tm, pto, std::nullopt, &pic);
 
   llvm::LoopAnalysisManager lam;
   llvm::FunctionAnalysisManager fam;