tree ba2c02ad296e36561cf3deb885fa0b9a8df4574e
parent 549d73bbeda5950fa3c0df0103296db686522707
author Craig Topper <craig.topper@intel.com> 1547348397 +0000
committer Craig Topper <craig.topper@intel.com> 1547348397 +0000

[X86] Add X86ISD::VMFPROUND to handle the masked case of VCVTPD2PSZ128 which only produces 2 result elements and zeroes the upper elements.

We can't represent this properly with vselect like we normally do. We also have to update the instruction definition to use a VK2WM mask instead of VK4WM to represent this.

Fixes another case from PR34877.