Matt Arsenault 8603a3d1c5 R600: Implement getRsqrtEstimate
Only do for f32 since I'm unclear on both what this is expecting
for the refinement steps in terms of accuracy, and what
f64 instruction actually provides.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225827 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-13 20:53:18 +00:00
..
2015-01-10 23:41:24 +00:00
2015-01-13 20:53:18 +00:00
2015-01-12 18:13:07 +00:00