Erik Eckstein 7eb123ff29 Swift SIL: Fix argument conventions for functions which have both, a direct and indirect result. ...

The function convention for the first argument is not identified as indirect-out.
This lets alias analysis assume that the memory pointed to by argument 0 cannot be written by the called function.

The problem is that subscripting a LazyFilterCollection (with the base index, e.g. `Int`) does not work as expected, because it returns the nth element of the base collection!
The fix is to implement the subscript "manually".

Fixes a mis-compile.
rdar://152160748

2025-05-30 12:40:44 +02:00

15 KiB

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