llvm-project/clang/test/Profile/misexpect-switch-only-defau...

37 lines
924 B
C

// Test that misexpect emits no warning when there is only one switch case
// RUN: llvm-profdata merge %S/Inputs/misexpect-switch-default-only.proftext -o %t.profdata
// RUN: %clang_cc1 %s -O2 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata -verify -Wmisexpect -debug-info-kind=line-tables-only
// expected-no-diagnostics
#define inner_loop 1000
#define outer_loop 20
#define arry_size 25
int sum(int *buff, int size);
int random_sample(int *buff, int size);
int rand();
void init_arry();
int arry[arry_size] = {0};
int main() {
init_arry();
int val = 0;
int j, k;
for (j = 0; j < outer_loop; ++j) {
for (k = 0; k < inner_loop; ++k) {
unsigned condition = rand() % 10000;
switch (__builtin_expect(condition, 0)) {
default:
val += random_sample(arry, arry_size);
break;
}; // end switch
} // end inner_loop
} // end outer_loop
return 0;
}