rust/tests/run-make/pgo-branch-weights/interesting.rs

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#![crate_name="interesting"]
#![crate_type="rlib"]
extern crate opaque;
#[no_mangle]
#[inline(never)]
pub fn function_called_twice(c: char) {
if c == '2' {
// This branch is taken twice
opaque::f1();
} else {
// This branch is never taken
opaque::f2();
}
}
#[no_mangle]
#[inline(never)]
pub fn function_called_42_times(c: char) {
if c == 'a' {
// This branch is taken 12 times
opaque::f1();
} else {
if c == 'b' {
// This branch is taken 28 times
opaque::f2();
} else {
// This branch is taken 2 times
opaque::f3();
}
}
}
#[no_mangle]
#[inline(never)]
pub fn function_called_never(_: char) {
opaque::f1();
}