[cfe-dev] [llvm-dev] RFC: Implementing -fno-delete-null-pointer-checks in clang

Tim Northover via cfe-dev cfe-dev at lists.llvm.org
Thu Apr 26 13:58:56 PDT 2018


> In addition, It is already not easy to convince Linux Kernel maintainers to
> accept clang specific patches.
> Worse performance when compared to GCC may make it even harder to push more
> patches.
> (There are already many complains about clang not supporting optimizations
> that Linux kernel is used to.
> As a side note: x86 maintainers deliberately broke clang support in upstream
> (https://lkml.org/lkml/2018/4/2/115)

Yeah, elements of the Linux community seem actively hostile to Clang.
We shouldn't let their hostility dictate our technical policy.

> I hope that I have made the case for not using address spaces.

You've certainly argued against them. You haven't provided adequate
semantics for IR without them though.

Cheers.

Tim.


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