GCC-Rust: Rust frontend for GCC

Re:GCC-Rust: Rust frontend for GCC by chungy on Sunday December 08, 2019 @04:43AM (#21735113)

I've been under the impression that GCC still has much better hardware optimizations than LLVM has.

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Re:GCC-Rust: Rust frontend for GCC by adev_ on Sunday December 08, 2019 @06:00AM (#21735322)

> I've been under the impression that GCC still has much better hardware optimizations than LLVM has.

That is my experience too.

GCC for code with high level of nesting, meaning high potential for inlining (typically C++), is close to unbeatable. Including even compared Highly optimised compilers like Intel ICC.

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Re:GCC-Rust: Rust frontend for GCC by sanxiyn on Sunday December 08, 2019 @08:49AM (#21735862)

LLVM developers are aware of this and they are working on a new inliner specifically to address this.

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Re:GCC-Rust: Rust frontend for GCC by earenndil on Sunday December 08, 2019 @12:52PM (#21737099)

It has not been mine. IME gcc can do slightly better than clang, sometimes, but it's generally a wash.

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Re:GCC-Rust: Rust frontend for GCC by sanxiyn on Sunday December 08, 2019 @09:46PM (#21740027)

Google found GCC to be faster than Clang for their code, that's why they are rewriting LLVM inliner.

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