================
@@ -143,3 +143,8 @@ namespace fold_initializer {
const float A::f = __builtin_is_constant_evaluated();
static_assert(fold(A::f == 1.0f));
}
+
+struct GH99680 {
+ static const int x = 1/(1-__builtin_is_constant_evaluated()); //
expected-error {{in-class initializer for static data member is not a constant
expression}} \
+ // expected-note {{division by zero}}
----------------
shafik wrote:
So if this is constant evaluated we have UB (divide by zero) so then it can't
be constant evaluated and therefore `__builtin_is_constant_evaluated()` must be
zero and therefore no divide by zero.
Which is the same logic used in the example in *[expr.const]p28.5*
https://github.com/llvm/llvm-project/pull/142713
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