...and remove it from `PointeeInfo`, which isn't meant for this.
There are still various places (marked with FIXMEs) that assume all pointers
have the same size and alignment. Fixing this requires parsing non-default
address spaces in the data layout string, which will be done in a followup.
Various cleanups around pre-TyCtxt queries and functions
part of #105462
based on https://github.com/rust-lang/rust/pull/106776 (everything starting at [0e2b39f](0e2b39fd1f) is new in this PR)
r? `@petrochenkov`
I think this should be most of the uncontroversial part of #105462.
This is an additional 17% improvement on ./y.rs compile --sysroot none
Benchmark 1: ./y_before.bin build --sysroot none
Time (mean ± σ): 1.533 s ± 0.022 s [User: 1.411 s, System: 0.471 s]
Range (min … max): 1.517 s … 1.589 s 10 runs
Benchmark 2: ./y_after.bin build --sysroot none
Time (mean ± σ): 1.311 s ± 0.020 s [User: 1.232 s, System: 0.428 s]
Range (min … max): 1.298 s … 1.366 s 10 runs
Summary
'./y_after.bin build --sysroot none' ran
1.17 ± 0.02 times faster than './y_before.bin build --sysroot none'
By avoiding some redundant rustc calls and stripping debuginfo for
wrappers. ./y.rs build --sysroot none now runs 44% faster.
Benchmark 1: ./y_before.bin build --sysroot none
Time (mean ± σ): 2.200 s ± 0.038 s [User: 2.140 s, System: 0.653 s]
Range (min … max): 2.171 s … 2.303 s 10 runs
Benchmark 2: ./y_after.bin build --sysroot none
Time (mean ± σ): 1.528 s ± 0.020 s [User: 1.388 s, System: 0.490 s]
Range (min … max): 1.508 s … 1.580 s 10 runs
Summary
'./y_after.bin build --sysroot none' ran
1.44 ± 0.03 times faster than './y_before.bin build --sysroot none'
Cranelift makes api breaking changes often enough that this workflow
fails half of the time. As such in practice I completely ignore it's
result and push an update to a branch after Cranelift branches to test
everything on CI. In this update I immediately fix the fallout of api
breaking changes.
