1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
|
//@ compile-flags: --crate-type=lib -Zmerge-functions=disabled -O
#![feature(core_intrinsics)]
use std::intrinsics::is_val_statically_known;
pub struct A(u32);
pub enum B {
Ye(u32),
}
#[inline]
pub fn _u32(a: u32) -> i32 {
if is_val_statically_known(a) { 1 } else { 0 }
}
// CHECK-LABEL: @_u32_true(
#[no_mangle]
pub fn _u32_true() -> i32 {
// CHECK: ret i32 1
_u32(1)
}
// CHECK-LABEL: @_u32_false(
#[no_mangle]
pub fn _u32_false(a: u32) -> i32 {
// CHECK: ret i32 0
_u32(a)
}
#[inline]
pub fn _bool(b: bool) -> i32 {
if is_val_statically_known(b) { 3 } else { 2 }
}
// CHECK-LABEL: @_bool_true(
#[no_mangle]
pub fn _bool_true() -> i32 {
// CHECK: ret i32 3
_bool(true)
}
// CHECK-LABEL: @_bool_false(
#[no_mangle]
pub fn _bool_false(b: bool) -> i32 {
// CHECK: ret i32 2
_bool(b)
}
#[inline]
pub fn _iref(a: &u8) -> i32 {
if unsafe { is_val_statically_known(a) } { 5 } else { 4 }
}
// CHECK-LABEL: @_iref_borrow(
#[no_mangle]
pub fn _iref_borrow() -> i32 {
// CHECK: ret i32 4
_iref(&0)
}
// CHECK-LABEL: @_iref_arg(
#[no_mangle]
pub fn _iref_arg(a: &u8) -> i32 {
// CHECK: ret i32 4
_iref(a)
}
#[inline]
pub fn _slice_ref(a: &[u8]) -> i32 {
if unsafe { is_val_statically_known(a) } { 7 } else { 6 }
}
// CHECK-LABEL: @_slice_ref_borrow(
#[no_mangle]
pub fn _slice_ref_borrow() -> i32 {
// CHECK: ret i32 6
_slice_ref(&[0;3])
}
// CHECK-LABEL: @_slice_ref_arg(
#[no_mangle]
pub fn _slice_ref_arg(a: &[u8]) -> i32 {
// CHECK: ret i32 6
_slice_ref(a)
}
|