Arnold Schwaighofer 678a99e76a Add a copy_block_without_escaping %block withoutEscaping %closure instruction ...

Mandatory pass will clean it up and replace it by a copy_block and
is_escaping/cond_fail/release combination on the %closure in follow-up
patches.

The instruction marks the dependence of a block on a closure that is
used as an 'withoutActuallyEscaping' sentinel.

rdar://39682865

2018-05-01 07:24:19 -07:00

50 KiB

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