[llvm-dev] MSVC warning noise on "LLVM_ATTRIBUTE_ALWAYS_INLINE inline void foo()"
Aaron Ballman via llvm-dev
llvm-dev at lists.llvm.org
Sun Dec 20 15:08:53 PST 2015
On Sun, Dec 20, 2015 at 5:57 PM, Johan Engelen <jbc.engelen at gmail.com> wrote:
> On Sun, Dec 20, 2015 at 11:28 PM, Aaron Ballman <aaron at aaronballman.com>
>> On Sun, Dec 20, 2015 at 5:24 PM, Xinliang David Li via llvm-dev
>> <llvm-dev at lists.llvm.org> wrote:
>> > LLVM_ATTRIBUTE_ALWAYS_INLINE is defined to be __forceinline for MSVC. I
>> > wonder why you get that warning.
>> inline and __forceinline don't mix with MSVC -- I believe they may be
>> modeled with the same attribute under the hood. I'm not certain of the
>> best way to solve this aside from suggesting to ignore C4141 locally.
> Perhaps LLVM_ATTRIBUTE_ALWAYS_INLINE could be defined to "inline" if the
> compiler has no support for always_inline (currently it is set to nothing in
> that case) ?
> I think this would allow removal of the "inline" after
Wouldn't this cause functions with MSVC that are marked
LLVM_ATTRIBUTE_ALWAYS_INLINE but not 'inline' to not be inlined? I
suppose a possible way is to make a #define
LLVM_ATTRIBUTE_INLINE_ALWAYS_INLINE that combines the two when not
compiling with MSVC, and then change all the requisite function
signatures to use this new macro instead. Uncertain of the value of
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