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/clang-check/ClangCheck.cpp b/clang/tools/clang-check/ClangCheck.cpp
index 2f59e2b82d3..466dac94225 100644
--- a/clang/tools/clang-check/ClangCheck.cpp
+++ b/clang/tools/clang-check/ClangCheck.cpp
@@ -27,6 +27,7 @@
 #include "clang/Tooling/Tooling.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/Option/OptTable.h"
+#include "llvm/Support/InitLLVM.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/TargetSelect.h"
@@ -151,7 +152,7 @@ public:
 } // namespace
 
 int main(int argc, const char **argv) {
-  llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
+  llvm::InitLLVM X(argc, argv);
 
   // Initialize targets for clang module support.
   llvm::InitializeAllTargets();