//@ test-mir-pass: DataflowConstProp //@ compile-flags: -Zdump-mir-exclude-alloc-bytes // EMIT_MIR_FOR_EACH_BIT_WIDTH #[derive(Copy, Clone)] struct S(i32); #[derive(Copy, Clone)] struct SmallStruct(f32, Option, &'static [f32]); #[derive(Copy, Clone)] struct BigStruct(f32, Option, &'static [f32]); // EMIT_MIR struct.main.DataflowConstProp.diff // CHECK-LABEL: fn main( fn main() { // CHECK: debug s => [[s:_.*]]; // CHECK: debug a => [[a:_.*]]; // CHECK: debug b => [[b:_.*]]; // CHECK: debug a1 => [[a1:_.*]]; // CHECK: debug b1 => [[b1:_.*]]; // CHECK: debug c1 => [[c1:_.*]]; // CHECK: debug a2 => [[a2:_.*]]; // CHECK: debug b2 => [[b2:_.*]]; // CHECK: debug c2 => [[c2:_.*]]; // CHECK: debug ss => [[ss:_.*]]; // CHECK: debug a3 => [[a3:_.*]]; // CHECK: debug b3 => [[b3:_.*]]; // CHECK: debug c3 => [[c3:_.*]]; // CHECK: debug a4 => [[a4:_.*]]; // CHECK: debug b4 => [[b4:_.*]]; // CHECK: debug c4 => [[c4:_.*]]; // CHECK: debug bs => [[bs:_.*]]; // CHECK: [[s]] = const S(1_i32); let mut s = S(1); // CHECK: [[a]] = const 3_i32; let a = s.0 + 2; s.0 = 3; // CHECK: [[b]] = const 6_i32; let b = a + s.0; const SMALL_VAL: SmallStruct = SmallStruct(4., Some(S(1)), &[]); // CHECK: [[a1]] = const 4f32; // CHECK: [[b1]] = copy ({{_.*}}.1: std::option::Option); // CHECK: [[c1]] = copy ({{_.*}}.2: &[f32]); let SmallStruct(a1, b1, c1) = SMALL_VAL; static SMALL_STAT: &SmallStruct = &SmallStruct(9., None, &[13.]); // CHECK: [[a2]] = const 9f32; // CHECK: [[b2]] = copy ((*{{_.*}}).1: std::option::Option); // CHECK: [[c2]] = copy ((*{{_.*}}).2: &[f32]); let SmallStruct(a2, b2, c2) = *SMALL_STAT; // CHECK: [[ss]] = SmallStruct(const 9f32, move {{_.*}}, move {{_.*}}); let ss = SmallStruct(a2, b2, c2); const BIG_VAL: BigStruct = BigStruct(25., None, &[]); // CHECK: [[a3]] = const 25f32; // CHECK: [[b3]] = copy ({{_.*}}.1: std::option::Option); // CHECK: [[c3]] = copy ({{_.*}}.2: &[f32]); let BigStruct(a3, b3, c3) = BIG_VAL; static BIG_STAT: &BigStruct = &BigStruct(82., Some(S(35)), &[45., 72.]); // CHECK: [[a4]] = const 82f32; // CHECK: [[b4]] = copy ((*{{_.*}}).1: std::option::Option); // CHECK: [[c4]] = copy ((*{{_.*}}).2: &[f32]); let BigStruct(a4, b4, c4) = *BIG_STAT; // We arbitrarily limit the size of synthetized values to 4 pointers. // `BigStruct` can be read, but we will keep a MIR aggregate for this. // CHECK: [[bs]] = BigStruct(const 82f32, move {{.*}}, move {{_.*}}); let bs = BigStruct(a4, b4, c4); }