| commit | f4fb91181cbd3f63d487a2519c7f7be9d5e51709 | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Sun Jan 10 07:08:30 2010 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Sun Jan 10 07:08:30 2010 +0000 |
| tree | d18a7539bd531d2349c1b1f38a1c036bf2ce87ae | |
| parent | abff82d99e8251774dfdc31f6c9ca0e10a146f5a [diff] |
change the preferred canonical form for a sign extension to be lshr+ashr instead of trunc+sext. We want to avoid type conversions whenever possible, it is easier to codegen expressions without truncates and extensions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93107 91177308-0d34-0410-b5e6-96231b3b80d8