| commit | 7f04a10c78d63aa3f1a9a51f6467ad664366997e | [log] [tgz] |
|---|---|---|
| author | Craig Topper <craig.topper@intel.com> | Mon Sep 04 01:13:36 2017 +0000 |
| committer | Craig Topper <craig.topper@intel.com> | Mon Sep 04 01:13:36 2017 +0000 |
| tree | 7c124635365ebb0ff702837e3dc9ba1939eb538b | |
| parent | 4f1ba3dc7d34fecaf5c5c5757578c7591271ef21 [diff] |
[X86] Add a combine to recognize when we have two insert subvectors that together write the whole vector, but the starting vector isn't undef. In this case we should replace the starting vector with undef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312462 91177308-0d34-0410-b5e6-96231b3b80d8