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by AceJohnny2 146 days ago
Offtopic...

    * Do this with "<0" and ">=0" to only test the sign of the result. A
    * good compiler would generate better code (and a really good compiler
    * wouldn't care). Gcc is currently neither.
It's funny the love-hate relationship the Linux kernel has with GCC. It's the only supported compiler[1], and yet...

[1] can Clang fully compile Linux yet? I haven't followed the updates in a while.
2 comments
rwmj 146 days ago
To be fair this comment predates git history (before 2005) when GCC wasn't a very good compiler. The kernel developers at one point were sticking with a specific version of GCC because later versions would miscompile the kernel. Clang didn't exist then.

GCC is a different beast and far better nowadays.

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EvgeniyZh 146 days ago
Yes it can [1].

https://docs.kernel.org/kbuild/llvm.html

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