[libcxx-commits] [libcxx] [libc++] Don't use aligned_alloc on iOS versions before 13 (PR #110315)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: None (Un1q32)

<details>
<summary>Changes</summary>

There's a check here to not use aligned_alloc on macOS versions before 10.15, this patch adds an equivalent check that tests for iOS 13.

---
Full diff: https://github.com/llvm/llvm-project/pull/110315.diff


1 Files Affected:

- (modified) libcxx/include/__config (+4) 


``````````diff
diff --git a/libcxx/include/__config b/libcxx/include/__config
index f90c966aad6950..0d71264611ff66 100644
--- a/libcxx/include/__config
+++ b/libcxx/include/__config
@@ -649,6 +649,10 @@ typedef __char32_t char32_t;
          __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 101500)
 #      define _LIBCPP_HAS_NO_C11_ALIGNED_ALLOC
 #    endif
+#    if (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) &&                                                    \
+         __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 130000)
+#      define _LIBCPP_HAS_NO_C11_ALIGNED_ALLOC
+#    endif
 #  elif defined(__ANDROID__) && __ANDROID_API__ < 28
 // Android only provides aligned_alloc when targeting API 28 or higher.
 #    define _LIBCPP_HAS_NO_C11_ALIGNED_ALLOC

``````````

</details>


https://github.com/llvm/llvm-project/pull/110315