1*67e74705SXin Li // RUN: %clang_cc1 -std=c++1y -fsyntax-only -verify %s -DMAX=1234 -fconstexpr-steps 1234 2*67e74705SXin Li // RUN: %clang_cc1 -std=c++1y -fsyntax-only -verify %s -DMAX=10 -fconstexpr-steps 10 3*67e74705SXin Li // RUN: %clang -std=c++1y -fsyntax-only -Xclang -verify %s -DMAX=12345 -fconstexpr-steps=12345 4*67e74705SXin Li 5*67e74705SXin Li // This takes a total of n + 4 steps according to our current rules: 6*67e74705SXin Li // - One for the compound-statement that is the function body 7*67e74705SXin Li // - One for the 'for' statement 8*67e74705SXin Li // - One for the 'int k = 0;' statement 9*67e74705SXin Li // - One for each of the n evaluations of the compound-statement in the 'for' body 10*67e74705SXin Li // - One for the 'return' statemnet steps(int n)11*67e74705SXin Liconstexpr bool steps(int n) { 12*67e74705SXin Li for (int k = 0; k != n; ++k) {} 13*67e74705SXin Li return true; // expected-note {{step limit}} 14*67e74705SXin Li } 15*67e74705SXin Li 16*67e74705SXin Li static_assert(steps((MAX - 4)), ""); // ok 17*67e74705SXin Li static_assert(steps((MAX - 3)), ""); // expected-error {{constant}} expected-note{{call}} 18