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Make the rustc respect the -C codegen-units flag in incremental mode. #70156

Merged
merged 3 commits into from
Apr 4, 2020
Merged

Make the rustc respect the -C codegen-units flag in incremental mode. #70156

merged 3 commits into from
Apr 4, 2020

Commits on Mar 31, 2020

  1. Make the rustc respect the -C codegen-units flag in incremental mode. 

    Before this commit `-C codegen-units` would just get silently be
ignored if `-C incremental` was specified too. After this commit
one can control the number of codegen units generated during
incremental compilation. The default is rather high at 256, so most
crates won't see a difference unless explicitly opting into a lower
count.
    @michaelwoerister
    michaelwoerister committed Mar 31, 2020
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  2. Add a test case for incremental + codegen-units interaction.

    @michaelwoerister
    michaelwoerister committed Mar 31, 2020
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Commits on Apr 1, 2020

  1. Update -Ccodegen-units docs wrt incr. comp. in rustc book.

    @michaelwoerister
    michaelwoerister committed Apr 1, 2020
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