Use InitLLVM to setup a pretty stack printer

InitLLVM does not only save a few lines from main() but also makes the
commands do the right thing for multibyte character pathnames on
Windows (i.e. canonicalize argv's to UTF-8) because of the code we
have in this file:

https://github.com/llvm/llvm-project/blob/master/llvm/lib/Support/InitLLVM.cpp#L32

For many LLVM commands, we already have calls of InitLLVM, but there
are still remainings.

Differential Revision: https://reviews.llvm.org/D70702

1 files changed, 2 insertions, 1 deletions

diff --git a/clang-tools-extra/tool-template/ToolTemplate.cpp b/clang-tools-extra/tool-template/ToolTemplate.cpp
index 3220eb33ac40..f9949d79a3f9 100644
--- a/clang-tools-extra/tool-template/ToolTemplate.cpp
+++ b/clang-tools-extra/tool-template/ToolTemplate.cpp
@@ -44,6 +44,7 @@
 #include "clang/Tooling/Refactoring/AtomicChange.h"
 #include "clang/Tooling/Tooling.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/InitLLVM.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Signals.h"
 
@@ -88,7 +89,7 @@ static cl::extrahelp CommonHelp(CommonOptionsParser::HelpMessage);
 static cl::OptionCategory ToolTemplateCategory("tool-template options");
 
 int main(int argc, const char **argv) {
-  llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
+  llvm::InitLLVM X(argc, argv);
 
   auto Executor = clang::tooling::createExecutorFromCommandLineArgs(
       argc, argv, ToolTemplateCategory);