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This is a tracking issue for the RFC "Implicit caller location" (rust-lang/rfcs#2091).
**Steps:**
- [x] Implement the RFC (cc @rust-lang/compiler -- can anyone write up mentoring instructions?)
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Over the past couple weeks we've increasingly observed pathological compiler performance in the presence of deeply nested, capturing lambda sets. See #3449 for one report, and [this Zulip thread](http…
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At high level, the proposal is to allow for "generics" as part of IFC principals (and therefore labels).
The definition of a principal would be extended to allow for "free" named parameters to appe…
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While implementing #1118, stumbled upon a bug: https://github.com/FuelLabs/sway/runs/5819569715?check_suite_focus=true
Note: the old codegen also errors, but with a different error.
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Right now, `-Ztime-passes` has very long output, most of which is completely useless for determining which part of your crate is slow:
```
time: 0.002; rss: 49MB -> 52MB ( +2MB) parse_crat…
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code from `src/test/ui/error-codes/E0511.rs`
````rust
// build-fail
#![feature(platform_intrinsics)]
extern "platform-intrinsic" {
fn simd_add(a: T, b: T) -> T;
}
fn main() {
u…
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seems similar to https://github.com/bjorn3/rustc_codegen_cranelift/issues/1318 but with different assertion :thinking:
`src/test/ui/simd/intrinsic/generic-cast.rs`
````rust
// build-fail
#!…
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When doing the "query-ification" of MIR, we handled MIR inlining by doing a "try-get", meaning that we attempt to inline all callees but ignore if a cycle arises. This is OK but leads to nondeterminis…
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Hi folks,
I've been writing a Rust-based replacement for libFuzzer called [Fazi](https://github.com/landaire/fazi), and I've encountered a couple of issues that have some crossover with libFuzzer u…
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```coffee
» \t ->
… when t is
… A -> "a"
… _ -> "?"
── REDUNDANT PATTERN ───────────────────────────────────────────────────────────
The 2nd pattern is redundant:
5│ …