================
@@ -0,0 +1,15 @@
+// RUN: not %clang_cc1 -std=c++20 -fsyntax-only %s 2>&1 \
+// RUN: | FileCheck %s --implicit-check-not='Assertion
`NumElements.isPositive()` failed'
+
+// In C++20, constexpr dynamic allocation is permitted *only* if valid.
+// A negative element count must be diagnosed (and must not crash).
+
+constexpr void f_bad_neg() {
+ int a = -1;
+ (void) new int[a]; // triggers negative-size path in the interpreter
+}
----------------
snarang181 wrote:
Added
https://github.com/llvm/llvm-project/pull/155737
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