[llvm-dev] Removing LLVM_ALWAYS_INLINE from ADT classes

[Duncan P. N. Exon Smith via llvm-dev]

This makes sense to me.

One concern is that this in itself will slow down the build, since tablegen will get even slower.  Ideally, there would be some (perhaps default?) configuration where we build the tablegen binaries with optimizations on and then use them in the build, as if we were cross-compiling.

> On Jan 4, 2019, at 15:14, Davide Italiano via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> Hi,
> I would like to propose, based on a previous discussion on llvm-dev,
> the following change.
> https://reviews.llvm.org/D56337
> 
> The main motivation for annotating member functions of ADT clases with
> LLVM_ALWAYS_INLINE  was that of speeding up `check-llvm` at `-O0`.
> Turns out this significantly degrades the debuggability of fundamental
> classes in llvm itself, e.g. StringRef or SmallVector.
> 
> After discussing we agreed that it's reasonable to drop
> LLVM_ALWYAS_INLINE from ADT classes  member functions and add a note
> in the developer's manual.
> 
> If you have any feedbacks or concerns, please speak up.
> If nothing major arises, I'm going to commit this patch in a week (or such).
> 
> Thanks for your time,
> 
> -- 
> Davide
> 
> "There are no solved problems; there are only problems that are more
> or less solved" -- Henri Poincare
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