| commit | 19a3f63b5477afc8de8a5de22ecd975050e5cef2 | [log] [tgz] |
|---|---|---|
| author | John Brawn <john.brawn@arm.com> | Fri Aug 21 10:48:17 2015 +0000 |
| committer | John Brawn <john.brawn@arm.com> | Fri Aug 21 10:48:17 2015 +0000 |
| tree | 34db950d586195ae91a8e02cae950ccbf5ac2434 | |
| parent | 92c2acd055885e7e329fca25b9233fadd0da0dd0 [diff] |
[DAGCombiner] Fold together mul and shl when both are by a constant This is intended to improve code generation for GEPs, as the index value is shifted by the element size and in GEPs of multi-dimensional arrays the index of higher dimensions is multiplied by the lower dimension size. Differential Revision: http://reviews.llvm.org/D12197 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245689 91177308-0d34-0410-b5e6-96231b3b80d8