[tvm] branch main updated: [LLVM] Use std::nullopt instead of llvm::None (#13617)

[masahi]

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The following commit(s) were added to refs/heads/main by this push:
     new 496ca9a479 [LLVM] Use std::nullopt instead of llvm::None (#13617)
496ca9a479 is described below

commit 496ca9a479c76050e1c189f6889baa05f32fd902
Author: Krzysztof Parzyszek <kparz...@quicinc.com>
AuthorDate: Wed Dec 14 19:49:52 2022 -0600

    [LLVM] Use std::nullopt instead of llvm::None (#13617)
    
    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 7aae177888..526bcf0fb2 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;