tree d3572c7822081037a65d3bf9b0f3e728410ae030
parent 5f13d6c1eef7fa4264d143af6e7bafbb74937ccd
author Qiu Chaofan <qiucofan@cn.ibm.com> 1600163950 +0800
committer Qiu Chaofan <qiucofan@cn.ibm.com> 1600163950 +0800

[SelectionDAG] Remove unused FP constant in getNegatedExpression

960cbc53 immediately removes nodes that won't be used to avoid
compilation time explosion. This patch adds the removal to constants to
fix PR47517.

Reviewed By: RKSimon, steven.zhang

Differential Revision: https://reviews.llvm.org/D87614