================
@@ -0,0 +1,92 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++14 -triple
x86_64-unknown-unknown %s
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++14 -triple
x86_64-unknown-unknown %s -fexperimental-new-constant-interpreter
+
+constexpr bool test_constexpr_valid() {
+ constexpr int arr[10] = {};
+ __builtin_assume_dereferenceable(arr, 40);
+ return true;
+}
+static_assert(test_constexpr_valid(), "");
+
+constexpr bool test_constexpr_partial() {
+ constexpr int arr[10] = {};
+ __builtin_assume_dereferenceable(&arr[5], 20);
+ return true;
+}
+static_assert(test_constexpr_partial(), "");
+
+constexpr bool test_constexpr_nullptr() { // expected-error {{constexpr
function never produces a constant expression}}
+ __builtin_assume_dereferenceable(nullptr, 4); // expected-note 2{{read of
dereferenced null pointer is not allowed in a constant expression}}
+ return true;
+}
----------------
philnik777 wrote:
Would it make sense to add a test that
`__builtin_assume_derferenceable(nullptr, 0)` works?
https://github.com/llvm/llvm-project/pull/169869
_______________________________________________
cfe-commits mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
