https://github.com/ArcsinX created 
https://github.com/llvm/llvm-project/pull/69119

This patch is similar to a7acba29c19ac67c77ed282ec9432602ae21268d but for 
clangd.

It allows to pass non-UTF8 encoded command line arguments (e.g. path where 
compile-commands.json file is located) on Windows.

>From e64a5fa3cc13aaba1ff7f8be503707cb52ac8356 Mon Sep 17 00:00:00 2001
From: Aleksandr Platonov <platonov.aleksa...@huawei.com>
Date: Sun, 15 Oct 2023 21:39:28 +0300
Subject: [PATCH] [clangd] Use InitLLVM

This patch is similar to a7acba29c19ac67c77ed282ec9432602ae21268d but for 
clangd.
It allows to pass non-UTF8 encoded command line arguments (e.g. path where 
compile-commands.json file is located) on Windows.
---
 clang-tools-extra/clangd/tool/ClangdMain.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/clang-tools-extra/clangd/tool/ClangdMain.cpp 
b/clang-tools-extra/clangd/tool/ClangdMain.cpp
index f656a8c587c6533..9fd002d0eebba5f 100644
--- a/clang-tools-extra/clangd/tool/ClangdMain.cpp
+++ b/clang-tools-extra/clangd/tool/ClangdMain.cpp
@@ -35,6 +35,7 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/FileSystem.h"
+#include "llvm/Support/InitLLVM.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Process.h"
 #include "llvm/Support/Program.h"
@@ -714,8 +715,8 @@ int clangdMain(int argc, char *argv[]) {
   // Clang could run on the main thread. e.g., when the flag '-check' or 
'-sync'
   // is enabled.
   clang::noteBottomOfStack();
+  llvm::InitLLVM X(argc, argv);
   llvm::InitializeAllTargetInfos();
-  llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
   llvm::sys::AddSignalHandler(
       [](void *) {
         ThreadCrashReporter::runCrashHandlers();

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