Rust Additions for GCC 15 Bring Support for If-Let Statements
Recent updates to GCC 15.1's Rust front-end include support for "if let" statements, improved AST and HIR handling, full implementation of Clone and Copy traits, and upcoming PartialOrd and PartialEq support.
Read original article
Recent updates to the Rust front-end for GCC 15.1 have introduced significant enhancements, including support for "if let" statements and improvements to the Polonius borrow checker. A total of 146 patches were merged, with notable changes to the Abstract Syntax Tree (AST) and High-Level Intermediate Representation (HIR) to better accommodate Rust's lang-item paths. These modifications allow for easier reference to essential Rust items during compilation. The updates also include the full implementation of the Clone and Copy traits, with additional built-in derive macros expected in future patches. Furthermore, support for PartialOrd and PartialEq traits is anticipated to be integrated before the stable release. The ongoing improvements aim to enhance the practicality of the gccrs front-end as a viable alternative to Rust's official LLVM-based compiler, rustc. The latest patchset also addresses various type-system and testsuite fixes, particularly for systems with different endianness, contributing to the overall stability and functionality of the compiler.
- GCC 15.1 introduces support for Rust's "if let" statements and other enhancements.
- Significant changes to AST and HIR representations facilitate better lang-item path handling.
- Full implementation of Clone and Copy traits has been achieved, with more macros to follow.
- Support for PartialOrd and PartialEq traits is expected before the stable release.
- Improvements aim to make gccrs a practical alternative to the official Rust compiler.
Related
(Re)Using rustc components in gccrs
The gccrs project is developing an alternative Rust compiler by integrating components from rustc, starting with rustc_parse_format and planning to include polonius, while addressing internal representation challenges.
Speeding up the Rust compiler without changing its code (2022)
Efforts to enhance the Rust compiler's performance include expanding PGO profiling, updating LLVM, and refining benchmarks. Challenges on macOS hinder progress, but improvements in profiling precision show potential for optimization.
An Update on Gccrs Development
The gccrs project, a Rust frontend for GCC, has made significant progress, reducing upstream commits to 40, focusing on key features, and aims to compile the Rust core library despite challenges.
GCC 15, now with C++ modules support
GCC 15 is in development, enhancing programming languages with updates to OpenMP, C23 as the default standard, and new features for C++, Fortran, AMD GPUs, and AVR optimizations.
Another Round of Rust Compiler Improvements Merged for GCC 15.1
GCC 15.1 has merged 144 patches to enhance Rust support, including Polonius borrow checker fixes and lowering the minimum Rust version to 1.49, with a stable release expected soon.
3 commentsBTW: Here's a good reference to the differences between "if" and "if let" - https://web.mit.edu/rust-lang_v1.25/arch/amd64_ubuntu1404/sh...
Kind of ironic now with Cobol being added in GCC 15, joining Modula-2, D, Rust, Fortran, Ada, C, C++ collection of frontends.
Related
(Re)Using rustc components in gccrs
The gccrs project is developing an alternative Rust compiler by integrating components from rustc, starting with rustc_parse_format and planning to include polonius, while addressing internal representation challenges.
Speeding up the Rust compiler without changing its code (2022)
Efforts to enhance the Rust compiler's performance include expanding PGO profiling, updating LLVM, and refining benchmarks. Challenges on macOS hinder progress, but improvements in profiling precision show potential for optimization.
An Update on Gccrs Development
The gccrs project, a Rust frontend for GCC, has made significant progress, reducing upstream commits to 40, focusing on key features, and aims to compile the Rust core library despite challenges.
GCC 15, now with C++ modules support
GCC 15 is in development, enhancing programming languages with updates to OpenMP, C23 as the default standard, and new features for C++, Fortran, AMD GPUs, and AVR optimizations.
Another Round of Rust Compiler Improvements Merged for GCC 15.1
GCC 15.1 has merged 144 patches to enhance Rust support, including Polonius borrow checker fixes and lowering the minimum Rust version to 1.49, with a stable release expected soon.