tree 5d8a0d5bca44a1fefae967b678af664e56834192
parent c0f816e09cd8447506d1e1eed3f260beb8b36901
author Simon Pilgrim <llvm-dev@redking.me.uk> 1549570483 +0000
committer Simon Pilgrim <llvm-dev@redking.me.uk> 1549570483 +0000

[DAGCombiner] (add (umax X, C), -C) --> (usubsat X, C) (PR40111)

Move the (add (umax X, C), -C) --> (usubsat X, C) X86 combine into generic DAGCombiner

First of a number of saturated arithmetic folds that can be moved out of X86-specific code for PR40111.

Differential Revision: https://reviews.llvm.org/D57754

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353457 91177308-0d34-0410-b5e6-96231b3b80d8