Commit 37d8612

committed

Update compiler-debugging.md

Add a hint about unflatten and an internal link to MIR outlives graphs to advertise them better.

1 parent 4c97ad5 commit 37d8612Copy full SHA for 37d8612

File tree

+12

-0

lines changed

+12

-0

lines changed

Lines changed: 12 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -244,6 +244,18 @@ $ dot -T pdf maybe_init_suffix.dot > maybe_init_suffix.pdf`
`244`	`244`	`$ firefox maybe_init_suffix.pdf # Or your favorite pdf viewer`
`245`	`245`	```
`246`	`246`
	`247`	`+Graphviz also comes with a preprocessor program,`
	`248`	+[`unflatten`](https://graphviz.org/docs/cli/unflatten/), that
	`249`	`+sometimes helps making the outputs look less oddly spread out. It reads`
	`250`	`+a dot file and outputs another dot file, so you can use it in a pipe,`
	`251`	`+e.g:`
	`252`	+```
	`253`	`+$ unflatten mir_dump/*.foo.-------.nll.0.regioncx.all.dot \| dot -Tpdf -o foo-outlives.pdf`
	`254`	+```
	`255`	`+`
	`256`	`+This is particularly useful for complicated region outlives graphs from`
	`257`	`+[MIR Dataflow](mir/dataflow.md#graphviz-diagrams).`
	`258`	`+`
`247`	`259`	`## Narrowing (Bisecting) Regressions`
`248`	`260`
`249`	`261`	`The [cargo-bisect-rustc][bisect] tool can be used as a quick and easy way to`

Comments

(0)