1 // Test that misexpect emits no warning when switch condition is non-const 2 3 // RUN: llvm-profdata merge %S/Inputs/misexpect-switch-nonconst.proftext -o %t.profdata 4 // RUN: %clang_cc1 %s -O2 -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify 5 6 // expected-no-diagnostics 7 8 #define inner_loop 1000 9 #define outer_loop 20 10 #define arry_size 25 11 12 int sum(int *buff, int size); 13 int random_sample(int *buff, int size); 14 int rand(); 15 void init_arry(); 16 17 int arry[arry_size] = {0}; 18 main()19int main() { 20 init_arry(); 21 int val = 0; 22 23 int j, k; 24 for (j = 0; j < outer_loop; ++j) { 25 for (k = 0; k < inner_loop; ++k) { 26 unsigned condition = rand() % 10000; 27 switch (__builtin_expect(condition, rand())) { 28 case 0: 29 val += sum(arry, arry_size); 30 break; 31 case 1: 32 case 2: 33 case 3: 34 case 4: 35 val += random_sample(arry, arry_size); 36 break; 37 default: 38 __builtin_unreachable(); 39 } // end switch 40 } // end inner_loop 41 } // end outer_loop 42 43 return 0; 44 } 45