[PATCH] D142317: [Support] Avoid using main thread for llvm::parallelFor().

[Alexey Lapshin via Phabricator via llvm-commits]

avl updated this revision to Diff 491727.
avl edited the summary of this revision.
avl added a comment.

addressed comments.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142317/new/

https://reviews.llvm.org/D142317

Files:
  llvm/lib/Support/Parallel.cpp


Index: llvm/lib/Support/Parallel.cpp
===================================================================
--- llvm/lib/Support/Parallel.cpp
+++ llvm/lib/Support/Parallel.cpp
@@ -214,8 +214,12 @@
           Fn(I);
       });
     }
-    for (; Begin != End; ++Begin)
-      Fn(Begin);
+    if (Begin != End) {
+      TG.spawn([=, &Fn] {
+        for (size_t I = Begin; I != End; ++I)
+          Fn(I);
+      });
+    }
     return;
   }
 #endif


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