rust/compiler/rustc_mir_build
bors cf8d81213c Auto merge of #118490 - Nadrieril:arena-alloc-matrix, r=nnethercote
Exhaustiveness: allocate memory better

Exhaustiveness is a recursive algorithm that allocates a bunch of slices at every step. Let's see if I can improve performance by improving allocations.

Already just using `Vec::with_capacity` is showing impressive improvements on my local measurements.

r? `@ghost`
2023-12-04 07:06:36 +00:00
..