| commit | d096eb7cf0948df6ff9ef1bb6d3f2fcebaf8c762 | [log] [tgz] |
|---|---|---|
| author | Craig Topper <craig.topper@intel.com> | Fri Jan 04 20:50:59 2019 +0000 |
| committer | Craig Topper <craig.topper@intel.com> | Fri Jan 04 20:50:59 2019 +0000 |
| tree | 8b36c1b78cc5b82b60b2b1efe617c67e65bf8c8a | |
| parent | 9f623cb147a004db1da2dfc427755225d638b9dc [diff] |
[X86] Add INSERT_SUBVECTOR to ComputeNumSignBits This adds support for calculating sign bits of insert_subvector. I based it on the computeKnownBits. My motivating case is propagating sign bits information across basic blocks on AVX targets where concatenating using insert_subvector is common. Differential Revision: https://reviews.llvm.org/D56283 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350432 91177308-0d34-0410-b5e6-96231b3b80d8