14 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 -DUNREACHABLE=1 %s2// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 -DUNREACHABLE=0 -Wimplicit-fallthrough %s3 4void fallthrough(int n) {5 switch (n) {6 case 1:7 if (UNREACHABLE)8 return;9 [[fallthrough]]; // expected-no-diagnostics, only checked when UNREACHABLE=010 case 2:11 break;12 }13}14