Matt Arsenault 7c06364dc0 R600: Implement getRecipEstimate ...

This requires a new hook to prevent expanding sqrt in terms
of rsqrt and reciprocal. v_rcp_f32, v_rsq_f32, and v_sqrt_f32 are
all the same rate, so this expansion would just double the number
of instructions and cycles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225828 91177308-0d34-0410-b5e6-96231b3b80d8

2015-01-13 20:53:23 +00:00

58 KiB

Raw Blame History

View Raw