Commit Graph

5 Commits

Author SHA1 Message Date
Ralf Jung
7767cbb3b0 const validation: point at where we found a pointer but expected an integer 2023-08-02 18:51:50 +02:00
Deadbeef
4f83717cf7 Use translatable diagnostics in rustc_const_eval 2023-06-01 14:45:18 +00:00
bors
81c2459af6 Stabilize const_ptr_read 2023-05-05 20:36:21 +02:00
Scott McMurray
b2c717fa33 MaybeUninit::assume_init_read should have noundef load metadata
I was looking into `array::IntoIter` optimization, and noticed that it wasn't annotating the loads with `noundef` for simple things like `array::IntoIter<i32, N>`.

Turned out to be a more general problem as `MaybeUninit::assume_init_read` isn't marking the load as initialized (<https://rust.godbolt.org/z/Mxd8TPTnv>), which is unfortunate since that's basically its reason to exist.

This PR lowers `ptr::read(p)` to `copy *p` in MIR, which fortuitiously also improves the IR we give to LLVM for things like `mem::replace`.
2023-03-11 17:44:43 -08:00
Albert Larsan
cf2dff2b1e
Move /src/test to /tests 2023-01-11 09:32:08 +00:00