| commit | f74c3ebbfb48f6b54de0a19947cdefc583a83de1 | [log] [tgz] |
|---|---|---|
| author | Craig Topper <craig.topper@intel.com> | Thu Dec 14 18:35:25 2017 +0000 |
| committer | Craig Topper <craig.topper@intel.com> | Thu Dec 14 18:35:25 2017 +0000 |
| tree | bdb6ae93544f34d369e0fa7f041f9d603ba71074 | |
| parent | 7c66ebefee4b3150cc90512e301eebf676737ea1 [diff] |
[X86] Don't zero the upper bits of the k-register before extracting a single bit from a vXi1. This doesn't match the semantics of the extract_vector_elt operation. Nothing downstream knows the bits were zeroed so they still get masked or sign extended after the extrat anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320723 91177308-0d34-0410-b5e6-96231b3b80d8