[clang] [Clang] Add constexpr eval for cmath builtins (PR #194327)

[via cfe-commits]

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@@ -0,0 +1,191 @@
+// RUN: %clang_cc1 -fexperimental-new-constant-interpreter -verify -std=c++20 %s
+// RUN: %clang_cc1 -verify -std=c++20 %s
+
+
+static_assert(__builtin_nearbyint(1.1) == 1.0);
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Serosh-commits wrote:

adding the tests 

https://github.com/llvm/llvm-project/pull/194327