[llvm] 1215ff8 - Name threadpool threads.

[Benoit Jacob via llvm-commits]

Author: Benoit Jacob
Date: 2023-02-23T18:11:15Z
New Revision: 1215ff89cde68bf66d2c883b19ad942fb2c5bf97

URL: https://github.com/llvm/llvm-project/commit/1215ff89cde68bf66d2c883b19ad942fb2c5bf97
DIFF: https://github.com/llvm/llvm-project/commit/1215ff89cde68bf66d2c883b19ad942fb2c5bf97.diff

LOG: Name threadpool threads.

This gives our worker threads some names that allow easily identifying them in tools such as profilers and debuggers.

Differential Revision: https://reviews.llvm.org/D144297

Added: 
    

Modified: 
    llvm/lib/Support/ThreadPool.cpp

Removed: 
    


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diff  --git a/llvm/lib/Support/ThreadPool.cpp b/llvm/lib/Support/ThreadPool.cpp
index 31461e31c65ce..4eef339000e19 100644
--- a/llvm/lib/Support/ThreadPool.cpp
+++ b/llvm/lib/Support/ThreadPool.cpp
@@ -15,6 +15,7 @@
 #include "llvm/Config/llvm-config.h"
 
 #if LLVM_ENABLE_THREADS
+#include "llvm/Support/FormatVariadic.h"
 #include "llvm/Support/Threading.h"
 #else
 #include "llvm/Support/raw_ostream.h"
@@ -43,6 +44,7 @@ void ThreadPool::grow(int requested) {
   while (static_cast<int>(Threads.size()) < newThreadCount) {
     int ThreadID = Threads.size();
     Threads.emplace_back([this, ThreadID] {
+      set_thread_name(formatv("llvm-worker-{0}", ThreadID));
       Strategy.apply_thread_strategy(ThreadID);
       processTasks(nullptr);
     });