allwpilib/upstream_utils/llvm_patches/0016-ErrorHandling-remove-call-to-RtlGetLastNtStatus.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tyler Veness <calcmogul@gmail.com>
Date: Tue, 17 Sep 2024 21:19:52 -0700
Subject: [PATCH 16/34] ErrorHandling: remove call to RtlGetLastNtStatus()

---
 llvm/lib/Support/ErrorHandling.cpp | 23 -----------------------
 1 file changed, 23 deletions(-)

diff --git a/llvm/lib/Support/ErrorHandling.cpp b/llvm/lib/Support/ErrorHandling.cpp
index cc0e4665da20b619f0cf52a25b0c71bdf78e62f6..69328303a1cc0cc6e210de5adbb4fdafafbe978f 100644
--- a/llvm/lib/Support/ErrorHandling.cpp
+++ b/llvm/lib/Support/ErrorHandling.cpp
@@ -240,34 +240,11 @@ void LLVMResetFatalErrorHandler() {
 #include <ntstatus.h>
 #include <winerror.h>
 
-// This is equivalent to NtCurrentTeb()->LastStatusValue, but the public
-// _TEB definition does not expose the LastStatusValue field directly.
-// Avoid offsetting into this structure by calling RtlGetLastNtStatus
-// from ntdll.dll.
-//
-// The return of this function will roughly match that of
-// GetLastError, but this lower level API disambiguates some cases
-// that GetLastError does not.
-//
-// For more information, see:
-// https://www.geoffchappell.com/studies/windows/km/ntoskrnl/inc/api/pebteb/teb/index.htm
-// https://github.com/llvm/llvm-project/issues/89137
-extern "C" NTSYSAPI NTSTATUS NTAPI RtlGetLastNtStatus();
-
 // This function obtains the last error code and maps it. It may call
 // RtlGetLastNtStatus, which is a lower level API that can return a
 // more specific error code than GetLastError.
 std::error_code llvm::mapLastWindowsError() {
   unsigned EV = ::GetLastError();
-  // The mapping of NTSTATUS to Win32 error loses some information; special
-  // case the generic ERROR_ACCESS_DENIED code to check the underlying
-  // NTSTATUS and potentially return a more accurate error code.
-  if (EV == ERROR_ACCESS_DENIED) {
-    llvm::errc code = RtlGetLastNtStatus() == STATUS_DELETE_PENDING
-                          ? errc::delete_pending
-                          : errc::permission_denied;
-    return make_error_code(code);
-  }
   return mapWindowsError(EV);
 }