Adrian Prantl 5b92814a0e Debug Info: Add missing debug info propagation to SILCloner. ...

While tightening the requirements of the debug info generator in
IRGenSIL I noticed that SILCloner didn't correctly transfer variable
debug info on alloc_box and alloc_stack instructions. In order to make
these mistakes easier to find I added an assertion to SILBuilder and
fixed all issues uncovered by that assertion, too.

The result is a moderate increase in debug info coverage in optimized code.

On stdlib/public/core/OSX/x86_64/Swift.o "variables with location"
increases from 60134 to 60299.

2019-09-24 14:10:25 -07:00

25 KiB

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