[llvm] 3a4063d - Revert "[Lit] Open sub-processes with text=`False`" (#196329)

[via llvm-commits]

Author: Benjamin Stott
Date: 2026-05-07T15:09:37Z
New Revision: 3a4063d0b08dcb561d307ab7747826e4b6360e21

URL: https://github.com/llvm/llvm-project/commit/3a4063d0b08dcb561d307ab7747826e4b6360e21
DIFF: https://github.com/llvm/llvm-project/commit/3a4063d0b08dcb561d307ab7747826e4b6360e21.diff

LOG: Revert "[Lit] Open sub-processes with text=`False`" (#196329)

Reverts llvm/llvm-project#194577 due to breaking tests on z/OS

Added: 
    

Modified: 
    llvm/utils/lit/lit/TestRunner.py

Removed: 
    


################################################################################
diff  --git a/llvm/utils/lit/lit/TestRunner.py b/llvm/utils/lit/lit/TestRunner.py
index 32f47109053a6..82852f1852705 100644
--- a/llvm/utils/lit/lit/TestRunner.py
+++ b/llvm/utils/lit/lit/TestRunner.py
@@ -475,7 +475,8 @@ def _executeShCmd(cmd, shenv, results, timeoutHelper):
                     stderr=stderr,
                     env=cmd_shenv.env,
                     close_fds=kUseCloseFDs,
-                    text=False,
+                    universal_newlines=True,
+                    errors="replace",
                 )
             )
             if old_umask != -1: