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Rust-GCC

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gccrs
GCC Front-End for Rust

C++ · 2945 stars
Rust-GCC.github.io
github pages for the Rust GCC project

CSS · 10 stars

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Invalid resolution of root path without opening scope resolution Open

name resolution

Difficulty 3/5 1-2 days Newbie friendliness 65/100

Rust-GCC/gccrs#4589 · Opened Jun 18, 2026
Missing features for `core` 1.49? Open

AST

Rust-GCC/gccrs#4577 · 1 comment · 1 assignee · Opened Jun 4, 2026
Issue with suffix validation on `0.` value on aarch64 Open

parser

Rust-GCC/gccrs#4575 · 1 assignee · Opened Jun 4, 2026
Unexpected "cannot find value in this scope" error when compiling `core/src/fmt/mod.rs` Open

Difficulty 4/5 3-5 days Newbie friendliness 56/100

Rust-GCC/gccrs#4560 · Opened May 27, 2026
ICE in finalize_glob_import, at rust/resolve/rust-early-name-resolver-2.0.cc Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Rust-GCC/gccrs#4554 · Opened May 23, 2026
ICE in function_set_parameters, at rust/rust-gcc.cc:2310 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

Rust-GCC/gccrs#4553 · Opened May 23, 2026
Make NR's `map_usage()` more robust and maybe add `map_usage_unsafe()` Open

cleanup enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4552 · Opened May 21, 2026
Underscores are displayed as subscripts Open

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

Rust-GCC/Rust-GCC.github.io#45 · Opened May 19, 2026
References are compared by pointer value, not according to their `PartialEq`/`PartialOrd` instances Open

codegen

Rust-GCC/gccrs#4537 · 4 comments · 1 reaction · 1 assignee · Opened Apr 27, 2026
Mutating an immutable variable Open

missing-lint

Rust-GCC/gccrs#4533 · 4 comments · 1 assignee · Opened Apr 21, 2026
libcpp caused XID_Start codepoints detection error. Open

Rust-GCC/gccrs#4510 · 4 comments · 1 assignee · Opened Apr 1, 2026
macro_export for inner item doc comment macros Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4509 · 1 comment · Opened Mar 30, 2026
ICE : `in visit, at rust/checks/lints/rust-lint-marklive.cc:149` Open

bug

Rust-GCC/gccrs#4496 · 2 comments · 1 assignee · Opened Mar 22, 2026
Compiler crash when implementing a trait with unmet supertrait bound Open

bug

Rust-GCC/gccrs#4493 · 4 comments · 1 assignee · Opened Mar 19, 2026
segfault with attr on macro decl Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 52/100

Rust-GCC/gccrs#4479 · Opened Mar 8, 2026
segfault clone_type_no_bounds_impl() Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4478 · Opened Mar 8, 2026
internal compiler error: in throw_exception, at rust/util/expected.h Open

bug

Rust-GCC/gccrs#4476 · 1 comment · 1 assignee · Opened Mar 8, 2026
internal compiler error: in convert_tree, at rust/rust-gcc.cc: Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4474 · Opened Mar 8, 2026
ICE: Segmentation fault Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Rust-GCC/gccrs#4473 · Opened Mar 8, 2026
ICE: `in add_constrints_from_param, at rust/typecheck/rust-tyty-variance-analysis.cc:472` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Rust-GCC/gccrs#4472 · Opened Mar 8, 2026
ICE: in visit, at rust/typecheck/rust-tyty-variance-analysis-private.h:168 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4470 · Opened Mar 8, 2026
ICE: `unable to find relevant lang item: Range` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 50/100

Rust-GCC/gccrs#4469 · 1 comment · Opened Mar 8, 2026
Evaluation order in struct expressions can be incorrect Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Rust-GCC/gccrs#4445 · 4 comments · Opened Feb 24, 2026
Clang produces a warning about incompatible linkage for templated type Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Rust-GCC/gccrs#4441 · 11 comments · Opened Feb 18, 2026
Duplicate metavariables allowed in unused macro definitions Open

Rust-GCC/gccrs#4409 · 1 comment · 1 assignee · Opened Jan 25, 2026
allow are not applied Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4380 · 1 comment · Opened Jan 14, 2026
Missing `export_name` attribute Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

Rust-GCC/gccrs#4370 · 6 comments · Opened Jan 9, 2026
Enum unused not detected Open

Rust-GCC/gccrs#4367 · 1 comment · 1 assignee · Opened Jan 8, 2026
non-exhaustive pattern matching should give an error Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4296 · 7 comments · Opened Nov 19, 2025
mut ref variable should give error if borrowing a non mutable variable Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4289 · Opened Nov 17, 2025
private function in an imported file should give an error not a warning Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Rust-GCC/gccrs#4259 · 1 comment · Opened Nov 5, 2025
unused function in imported file should give warning Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

Rust-GCC/gccrs#4258 · 3 comments · Opened Nov 5, 2025
valid file import gives error in a file other than main.rs Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

Rust-GCC/gccrs#4257 · 1 comment · Opened Nov 5, 2025
unused import lint not implemented Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

Rust-GCC/gccrs#4254 · 1 comment · Opened Nov 4, 2025
ICE in expand_message, at rust/rust-diagnostics.cc Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4252 · 1 comment · Opened Nov 2, 2025
Unsafe attributes not allowed Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Rust-GCC/gccrs#4244 · 1 comment · 1 reaction · Opened Oct 21, 2025
no_std macro not implemented Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

Rust-GCC/gccrs#4223 · 1 comment · Opened Oct 16, 2025
`#[derive()]` without traits should be ignored, not give an error, even followed by invalid item Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Rust-GCC/gccrs#4216 · 2 comments · Opened Oct 15, 2025
ICE in get_array_expr, at rust/ast/rust-expr.h:1521 Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4209 · 1 comment · Opened Oct 14, 2025
segfault DefaultHIRVisitor, macros Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

Rust-GCC/gccrs#4187 · Opened Sep 23, 2025
segfault in NodeMapping::get_nodeid() Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

Rust-GCC/gccrs#4186 · Opened Sep 23, 2025
ICE in get_function_expr, at rust/ast/rust-expr.h:2272 cfg'd return type from inside macro Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4167 · 1 comment · Opened Sep 13, 2025
tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in visit, at rust/backend/rust-compile-pattern.cc:1255 Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

Rust-GCC/gccrs#4161 · Opened Sep 13, 2025
segfault `Backend::is_floating_point` consts Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

Rust-GCC/gccrs#4156 · 1 comment · Opened Sep 13, 2025
ICE `in check_cfg_predicate, at rust/ast/rust-ast.cc:4040` `#![cfg(feature = feature)]` Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

Rust-GCC/gccrs#4154 · Opened Sep 13, 2025
AST: segfault with garbage cfg attr Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4147 · Opened Sep 9, 2025
ICE `in create_tmp_var, at gimple-expr.cc:484` , `while let true = continue {}` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

Rust-GCC/gccrs#4144 · Opened Sep 9, 2025
ICE `in get_record, at rust/resolve/rust-name-resolution-context.h:370` Open

bug good-first-pr

Rust-GCC/gccrs#4143 · 3 comments · 1 assignee · Opened Sep 9, 2025
ICE `in handle_substitions, at rust/typecheck/rust-tyty.cc:3575` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Rust-GCC/gccrs#4142 · Opened Sep 9, 2025
ICE ` attempting to expand node with id 12 into position with node id 14` Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

Rust-GCC/gccrs#4138 · Opened Sep 8, 2025

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