tree 3c7d30d59019d4260ffc51d94102de80bb19266e
parent 1b1a97e9b55754302c4b41f6bddc8fbc3870f68a
author Craig Topper <craig.topper@intel.com> 1582336595 -0800
committer Craig Topper <craig.topper@intel.com> 1582337467 -0800

[X86] Teach combineCVTPH2PS to shrink v8i16 loads when the output type is v4f32. Remove extra isel patterns.

Similar to what do for other operations that use a subset of bits.
Allows us to remove a pattern that shrinks a load. Which was
incorrect if the load was volatile.