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ssa: implement #[collapse_debuginfo] #99556

Merged
merged 2 commits into from
Sep 13, 2022
Merged

ssa: implement #[collapse_debuginfo] #99556

merged 2 commits into from
Sep 13, 2022

Commits on Sep 7, 2022

  1. middle: comment -> doc comment 

    Drive-by change of a regular comment to a documentation comment on
`TyCtxt::is_suitable_region`.

Signed-off-by: David Wood <david.wood@huawei.com>
    @davidtwco
    davidtwco committed Sep 7, 2022
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  2. ssa: implement #[collapse_debuginfo] 

    Debuginfo line information for macro invocations are collapsed by
default - line information are replaced by the line of the outermost
expansion site. Using `-Zdebug-macros` disables this behaviour.

When the `collapse_debuginfo` feature is enabled, the default behaviour
is reversed so that debuginfo is not collapsed by default. In addition,
the `#[collapse_debuginfo]` attribute is available and can be applied to
macro definitions which will then have their line information collapsed.

Signed-off-by: David Wood <david.wood@huawei.com>
    @davidtwco
    davidtwco committed Sep 7, 2022
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