01a8b5f26e
Check `RUSTC_CTFE_BACKTRACE` much less by generating fewer errors Before this change, `get_size_and_align()` calls `get_fn_alloc()` *a lot* in CTFE heavy code. This previously returned an `Error` which would check if `RUSTC_CTFE_BACKTRACE` was set on construction. Doing this turned out to be a performance hotspot as @nnethercote discovered in #68792. This is an alternate take on that PR which resolves the performance issue by generating *many* fewer errors. Previously, `ctfe-stress-4` would generate over 5,000,000 errors each of which would check for the presence of the environment variable. With these changes, that number is reduced to 30. r? @RalfJung |
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| .. | ||
| borrow_check | ||
| const_eval | ||
| dataflow | ||
| interpret | ||
| monomorphize | ||
| transform | ||
| util | ||
| Cargo.toml | ||
| const_eval.rs | ||
| lib.rs | ||
| shim.rs | ||