| commit | fb0da33fc13ab1533bcd46ec4f6d9f7c2cbd4372 | [log] [tgz] |
|---|---|---|
| author | Anna Thomas <anna@azul.com> | Wed Sep 13 19:35:45 2017 +0000 |
| committer | Anna Thomas <anna@azul.com> | Wed Sep 13 19:35:45 2017 +0000 |
| tree | 4a5a77b53589984ffbee5984665c2e8a61b409cd | |
| parent | 65bdf0ae4a87e6992c24f06e2612909952468710 [diff] |
[LV] Avoid computing the register usage for default VF. NFC These are changes to reduce redundant computations when calculating a feasible vectorization factor: 1. early return when target has no vector registers 2. don't compute register usage for the default VF. Suggested during review for D37702. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313176 91177308-0d34-0410-b5e6-96231b3b80d8