clang/test/Sema/warn-unreachable-fallthrough.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c2x -Wunreachable-code-fallthrough %s
   2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c2x -Wunreachable-code %s
   3 // RUN: %clang_cc1 -fsyntax-only -verify=code -std=c2x -Wunreachable-code -Wno-unreachable-code-fallthrough %s
   4 // RUN: %clang_cc1 -fsyntax-only -verify -std=c2x -Wno-unreachable-code -Wunreachable-code-fallthrough %s
   5
   6 int n;
   7 void f(void){
   8      switch (n){
   9          [[fallthrough]]; // expected-warning{{fallthrough annotation in unreachable code}}
  10                           // code-warning@-1{{never be executed}}
  11          case 1:;
  12      }
  13 }