Matthias Krüger f6ca5aa19a
Rollup merge of #103977 - TimNN:memory-effects, r=nikic
LLVM 16: Switch to using MemoryEffects

This adapts the compiler to the changes required by 304f1d59ca.

AFAICT, `WriteOnly` isn't used by the compiler, all `ReadNone` uses were migrated and the remaining use of `ReadOnly` is only for function parameters.

To simplify the FFI, this PR uses an enum to represent `MemoryEffects` across the FFI boundary, which then gets mapped to the matching static factory method when constructing the attribute.

Fixes #103961.

`@rustbot` label +llvm-main

r? `@nikic`
2022-11-05 00:02:05 +01:00
..
2022-10-14 12:57:56 +08:00
2022-02-24 12:18:21 +01:00