Il2cpp never finishes. how to tell what clang is doing?

Unity Engine
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1

it used to take 20 or minutes to do an il2cpp build. on 2017.4.1f1 and 2018.1.0f2 il2cpp builds have stopped completing. it will just sit there on this forever:

3503036--279324--upload_2018-5-19_18-13-28.png

clang is chewing up a core, but not finishing it’s work:

3503036--279326--upload_2018-5-19_18-14-39.png

i have let it run for more than 24 hours, tried reimporting all, etc. it never finishes. i would love to know what the hell clang is chewing on so that whatever the problem is can be corrected.

2

i found the culprit. a generated function which is about 54000 unrolled lines long. it doesn’t do anything fancy, just plugs some data into an array in a linear fashion. guessing clang chokes forever because of it’s giantness. when reduced to 4000 lines, clang completed the compilation normally.

3

it would have been much easier to find it if there was a way to know what file clang was choking on, however…