llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lldb

Author: David Spickett (DavidSpickett)

<details>
<summary>Changes</summary>

Reverts llvm/llvm-project#<!-- -->165281

Because our Windows on Arm buildbot is red all over: 
https://lab.llvm.org/buildbot/#/builders/141/builds/12624

---
Full diff: https://github.com/llvm/llvm-project/pull/165717.diff


1 Files Affected:

- (modified) lldb/source/Host/windows/ProcessLauncherWindows.cpp (+7-10) 


``````````diff
diff --git a/lldb/source/Host/windows/ProcessLauncherWindows.cpp 
b/lldb/source/Host/windows/ProcessLauncherWindows.cpp
index e1b4b7e48c5a6..f5adadaf061bf 100644
--- a/lldb/source/Host/windows/ProcessLauncherWindows.cpp
+++ b/lldb/source/Host/windows/ProcessLauncherWindows.cpp
@@ -16,7 +16,6 @@
 #include "llvm/Support/Program.h"
 
 #include <string>
-#include <unordered_set>
 #include <vector>
 
 using namespace lldb;
@@ -92,13 +91,13 @@ ProcessLauncherWindows::LaunchProcess(const 
ProcessLaunchInfo &launch_info,
   startupinfo.hStdOutput =
       stdout_handle ? stdout_handle : ::GetStdHandle(STD_OUTPUT_HANDLE);
 
-  std::unordered_set<HANDLE> inherited_handles;
+  std::vector<HANDLE> inherited_handles;
   if (startupinfo.hStdError)
-    inherited_handles.insert(startupinfo.hStdError);
+    inherited_handles.push_back(startupinfo.hStdError);
   if (startupinfo.hStdInput)
-    inherited_handles.insert(startupinfo.hStdInput);
+    inherited_handles.push_back(startupinfo.hStdInput);
   if (startupinfo.hStdOutput)
-    inherited_handles.insert(startupinfo.hStdOutput);
+    inherited_handles.push_back(startupinfo.hStdOutput);
 
   SIZE_T attributelist_size = 0;
   InitializeProcThreadAttributeList(/*lpAttributeList=*/nullptr,
@@ -121,15 +120,13 @@ ProcessLauncherWindows::LaunchProcess(const 
ProcessLaunchInfo &launch_info,
     const FileAction *act = launch_info.GetFileActionAtIndex(i);
     if (act->GetAction() == FileAction::eFileActionDuplicate &&
         act->GetFD() == act->GetActionArgument())
-      inherited_handles.insert(reinterpret_cast<HANDLE>(act->GetFD()));
+      inherited_handles.push_back(reinterpret_cast<HANDLE>(act->GetFD()));
   }
   if (!inherited_handles.empty()) {
-    std::vector<HANDLE> handles(inherited_handles.begin(),
-                                inherited_handles.end());
     if (!UpdateProcThreadAttribute(
             startupinfoex.lpAttributeList, /*dwFlags=*/0,
-            PROC_THREAD_ATTRIBUTE_HANDLE_LIST, handles.data(),
-            handles.size() * sizeof(HANDLE),
+            PROC_THREAD_ATTRIBUTE_HANDLE_LIST, inherited_handles.data(),
+            inherited_handles.size() * sizeof(HANDLE),
             /*lpPreviousValue=*/nullptr, /*lpReturnSize=*/nullptr)) {
       error = Status(::GetLastError(), eErrorTypeWin32);
       return HostProcess();

``````````

</details>


https://github.com/llvm/llvm-project/pull/165717
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