Re: [RESEND PATCH v2] arm64: lse: fix LSE atomics with LLVM's integrated assembler

From: Will Deacon
Date: Thu Nov 14 2019 - 11:57:39 EST


On Thu, Oct 31, 2019 at 12:57:05PM -0700, Sami Tolvanen wrote:
> Unlike gcc, clang considers each inline assembly block to be independent
> and therefore, when using the integrated assembler for inline assembly,
> any preambles that enable features must be repeated in each block.
>
> This change defines __LSE_PREAMBLE and adds it to each inline assembly
> block that has LSE instructions, which allows them to be compiled also
> with clang's assembler.

Any chance LLVM can be fixed to avoid this bodge in the kernel?

Will