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

[Cameron McInally via Phabricator via cfe-commits]

cameron.mcinally added a comment.

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.

Also, some AVX512 hardware instructions have explicit SAE and RM operands.


https://reviews.llvm.org/D53157