Add FileCheck annotations to retag mir-opt test #150479
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- Add CHECK for closure (main::{closure#0})
- Use CHECK-NEXT to verify Retag statements order after bb0
- Verify Retag for both self (_1) and reference parameters (_2)
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|
cjgillot
reviewed
Jan 7, 2026
| // CHECK: bb0: { | ||
| // CHECK-NEXT: Retag([fn entry] _1); | ||
| // CHECK-NEXT: Retag([fn entry] _2); | ||
| // CHECK: Retag(_0); |
Contributor
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We are checking that we retag just after assigning to _0.
Suggested change
| // CHECK: Retag(_0); | |
| // CHECK: _0 = {{.*}}; | |
| // CHECK-NEXT: Retag(_0); |
| // EMIT_MIR retag.main-{closure#0}.SimplifyCfg-pre-optimizations.after.mir | ||
| pub fn main() { | ||
| // CHECK-LABEL: fn main( | ||
| // CHECK: Retag(_{{[0-9]+}}); |
Contributor
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Could you elaborate a bit? There should be 7 retags in this function.
| // CHECK-LABEL: fn main::{closure#0}( | ||
| // CHECK: bb0: { | ||
| // CHECK-NEXT: Retag([fn entry] _1); | ||
| // CHECK-NEXT: Retag([fn entry] _2); |
| /// Casting directly to an array should also go through `&raw` and thus add appropriate retags. | ||
| // EMIT_MIR retag.array_casts.SimplifyCfg-pre-optimizations.after.mir | ||
| // CHECK-LABEL: fn array_casts( | ||
| // CHECK: Retag( |
Contributor
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Could you elaborate? There are 4 retags in this function.
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Part of #116971.
Add FileCheck annotations to
tests/mir-opt/retag.rs, removing the// skip-filecheckdirective.The added CHECK directives verify that the
AddRetagpass correctly insertsRetagstatements:selfand reference parameters (Retag([fn entry] _1),Retag([fn entry] _2))CHECK-NEXTto verify Retag statements appear immediately afterbb0: {Retag(_0))main::{closure#0}) with proper entry retagsarray_castsfunction (testing retags through&raw)box_to_raw_mutfunction with[raw]retag (Retag([raw] _0))r? @cjgillot