| commit | e46e17b7fb73abce6cdf77c2ced7e1ef877415b4 | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Thu Sep 29 19:28:10 2005 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Thu Sep 29 19:28:10 2005 +0000 |
| tree | a8f0e8f3f9a95e2ffec6638efb92ff7d3ab64bc4 | |
| parent | 93e50ce04cc30fd4dc6e211bbfc536b9e6373905 [diff] |
Teach tblgen to build permutations of instructions, so that the target author doesn't have to specify them manually. It currently handles associativity, e.g. knowing that (X*Y)+Z also matches X+(Y*Z) and will be extended in the future. It is smart enough to not introduce duplicate patterns or patterns that can never match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23526 91177308-0d34-0410-b5e6-96231b3b80d8