[llvm] r276051 - AMDGPU: Change fdiv lowering based on !fpmath metadata

[Matt Arsenault via llvm-commits]

On 07/25/2016 05:51 PM, Marek Olšák via llvm-commits wrote:
> The commit actually regresses code quality a lot on Tonga:
>
> Totals from affected shaders:
> VGPRS: 488066 -> 504815 (3.43 %)
> Spilled VGPRs: 278 -> 361 (29.86 %)
> Scratch VGPRs: 1060 -> 1144 (7.92 %) dwords per thread
> Code Size: 26675564 -> 28796812 (7.95 %) bytes
> Max Waves: 105039 -> 102285 (-2.62 %)
>
> Marek
>
>

Do you have an example testcase?