[PATCH] D53157: Teach the IRBuilder about constrained fadd and friends

[Kevin P. Neal via Phabricator via llvm-commits]

kpn added a comment.

In https://reviews.llvm.org/D53157#1291978, @cameron.mcinally wrote:

> In https://reviews.llvm.org/D53157#1291964, @kpn wrote:
>
> > I don't expect anyone would need to switch between constrained and regular floating point at an instruction level of granularity.
>
>
> The Standard allows for this (to some degree). E.g. FENV_ACCESS can be toggled between nested compound statements.


Yes, but I'm not worried about what sort of code is input to a compiler. I'm worried about what is right for the compiler itself. Also, since we're in LLVM here, we have to think about all languages that use LLVM as a backend.


https://reviews.llvm.org/D53157