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| author | Qiu Chaofan <qiucofan@cn.ibm.com> | 2019-09-12 07:51:24 +0000 |
|---|---|---|
| committer | Qiu Chaofan <qiucofan@cn.ibm.com> | 2019-09-12 07:51:24 +0000 |
| commit | b7fb5d0f6f2abf07f0ce6edc3397b4c291c1d25e (patch) | |
| tree | b5fb0cbe9b96f54540d31e4c268e1cf633b249d2 /llvm/lib/CodeGen/SafeStackColoring.h | |
| parent | 75f65fe8d316407c5dd7cd9bfdfc760203947aa1 (diff) | |
| download | bcm5719-llvm-b7fb5d0f6f2abf07f0ce6edc3397b4c291c1d25e.tar.gz bcm5719-llvm-b7fb5d0f6f2abf07f0ce6edc3397b4c291c1d25e.zip | |
[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
Diffstat (limited to 'llvm/lib/CodeGen/SafeStackColoring.h')
0 files changed, 0 insertions, 0 deletions
