llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: None (llvmbot)

<details>
<summary>Changes</summary>

Backport 4ef92469ab341ac1bee39a9413ffaa845e307414

Requested by: @<!-- -->var-const

---
Full diff: https://github.com/llvm/llvm-project/pull/151921.diff


2 Files Affected:

- (modified) libcxx/include/__assert (+2-2) 
- (modified) libcxx/test/support/check_assertion.h (+2-2) 


``````````diff
diff --git a/libcxx/include/__assert b/libcxx/include/__assert
index 90eaa6023587b..a9451daf47f2f 100644
--- a/libcxx/include/__assert
+++ b/libcxx/include/__assert
@@ -20,8 +20,8 @@
 #define _LIBCPP_ASSERT(expression, message)                                    
                                        \
   (__builtin_expect(static_cast<bool>(expression), 1)                          
                                        \
        ? (void)0                                                               
                                        \
-       : _LIBCPP_ASSERTION_HANDLER(__FILE__ ":" _LIBCPP_TOSTRING(__LINE__) ": 
assertion " _LIBCPP_TOSTRING(            \
-             expression) " failed: " message "\n"))
+       : _LIBCPP_ASSERTION_HANDLER(__FILE__ ":" _LIBCPP_TOSTRING(              
                                        \
+             __LINE__) ": libc++ Hardening assertion " 
_LIBCPP_TOSTRING(expression) " failed: " message "\n"))
 
 // WARNING: __builtin_assume can currently inhibit optimizations. Only add 
assumptions with a clear
 // optimization intent. See 
https://discourse.llvm.org/t/llvm-assume-blocks-optimization/71609 for a
diff --git a/libcxx/test/support/check_assertion.h 
b/libcxx/test/support/check_assertion.h
index a091043195345..8416de76cfd61 100644
--- a/libcxx/test/support/check_assertion.h
+++ b/libcxx/test/support/check_assertion.h
@@ -52,8 +52,8 @@ MatchResult MatchAssertionMessage(const std::string& text, 
std::string_view expe
   // library.
   std::string assertion_format_string = [&] {
     if (use_marker)
-      return (".*###\\n(.*):(\\d+): assertion (.*) failed: (.*)\\n###");
-    return ("(.*):(\\d+): assertion (.*) failed: (.*)\\n");
+      return (".*###\\n(.*):(\\d+): libc\\+\\+ Hardening assertion (.*) 
failed: (.*)\\n###");
+    return ("(.*):(\\d+): libc\\+\\+ Hardening assertion (.*) failed: 
(.*)\\n");
   }();
   std::regex assertion_format(assertion_format_string);
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/151921
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