[compiler-rt] [sanitizer_common][test-only] Mark popen xfail on iossim (PR #171814)

[Dan Blackwell via llvm-commits]

https://github.com/DanBlackwell created https://github.com/llvm/llvm-project/pull/171814

rdar://166246774

>From 0a1c8685a70745fe39686bac8f481866ebeee8a2 Mon Sep 17 00:00:00 2001
From: Dan Blackwell <dan_blackwell at apple.com>
Date: Thu, 11 Dec 2025 12:05:32 +0000
Subject: [PATCH] [sanitizer_common][test-only] Mark popen xfail on iossim

rdar://166246774
---
 compiler-rt/test/sanitizer_common/TestCases/Posix/popen.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler-rt/test/sanitizer_common/TestCases/Posix/popen.cpp b/compiler-rt/test/sanitizer_common/TestCases/Posix/popen.cpp
index 6bf6255a697a1..1cc7908086c6f 100644
--- a/compiler-rt/test/sanitizer_common/TestCases/Posix/popen.cpp
+++ b/compiler-rt/test/sanitizer_common/TestCases/Posix/popen.cpp
@@ -2,6 +2,8 @@
 // CHECK: 1
 // CHECK-NEXT: 2
 
+// XFAIL: iossim
+
 #include <assert.h>
 #include <stdio.h>