Erik Eckstein 24d077e78b IRGen: re-enable generate static arrays in read-only data sections. ...

So far, static arrays had to be put into a writable section, because the isa pointer and the (immortal) ref count field were initialized dynamically at the first use of such an array.

But with a new runtime library, which exports the symbols for the (immortal) ref count field and the isa pointer, it's possible to put the whole array into a read-only section. I.e. make it a constant global.

rdar://94185998

This reverts the revert commit df353ff3c0.
Also, I added a frontend option to disable this optimization: `-disable-readonly-static-objects`

2022-06-21 18:30:42 +02:00

101 KiB

Raw Blame History

View Raw