Qiu Chaofan b7fb5d0f6f [DAGCombiner] Improve division estimation of floating points. ...

Current implementation of estimating divisions loses precision since it
estimates reciprocal first and does multiplication.  This patch is to re-order
arithmetic operations in the last iteration in DAGCombiner to improve the
accuracy.

Reviewed By: Sanjay Patel, Jinsong Ji

Differential Revision: https://reviews.llvm.org/D66050

llvm-svn: 371713

2019-09-12 07:51:24 +00:00

12 KiB

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