tree 95fd26dbed5c08510c686c53f6f3a55baeedd554
parent 6349865a8f3751a651f9451eac0405e01ee03a11
author Simon Pilgrim <llvm-dev@redking.me.uk> 1632735568 +0100
committer Tom Stellard <tstellar@redhat.com> 1642714319 -0800

[X86] combineVectorHADDSUB - remove the broken HOP(x,x) merging code (PR51974)

This intention of this code turns out to be superfluous as we can handle this with shuffle combining, and it has a critical flaw in that it doesn't check for dependencies.

Fixes PR51974

(cherry picked from commit 468ff703e114599ce8fb7457bd3c7ef0b219e952)