bjoernager/rust
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Add CopyForDeref to custom MIR

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Andy Wang 2023-05-15 12:05:10 +02:00
parent 0bcfd2d96e
commit c3ab4f28d3
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4 changed files with 30 additions and 0 deletions
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12
tests/mir-opt/building/custom/projections.copy_for_deref.built.after.mir Normal file
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@ -0,0 +1,12 @@
// MIR for `copy_for_deref` after built
fn copy_for_deref(_1: (&i32, i32)) -> i32 {
let mut _0: i32; // return place in scope 0 at $DIR/projections.rs:+0:38: +0:41
let mut _2: &i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL
bb0: {
_2 = deref_copy (_1.0: &i32); // scope 0 at $DIR/projections.rs:+4:13: +4:37
_0 = (*_2); // scope 0 at $DIR/projections.rs:+5:13: +5:24
return; // scope 0 at $DIR/projections.rs:+6:13: +6:21
}
}

16
tests/mir-opt/building/custom/projections.rs
View file

@ -71,6 +71,19 @@ fn simple_index(a: [i32; 10], b: &[i32]) -> i32 {
})
}
// EMIT_MIR projections.copy_for_deref.built.after.mir
#[custom_mir(dialect = "runtime", phase = "initial")]
fn copy_for_deref(x: (&i32, i32)) -> i32 {
mir!(
let temp: &i32;
{
temp = CopyForDeref(x.0);
RET = *temp;
Return()
}
)
}
fn main() {
assert_eq!(unions(U { a: 5 }), 5);
assert_eq!(tuples((5, 6)), (5, 6));
@ -82,4 +95,7 @@ fn main() {
assert_eq!(o, Some(10));
assert_eq!(simple_index([0; 10], &[0; 10]), 0);
let one = 1;
assert_eq!(copy_for_deref((&one, one)), 1);
}