| commit | eb9f89287e8ff3daeb9191ecd0cc3241a4f4137d | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Sat Aug 30 02:03:58 2008 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Sat Aug 30 02:03:58 2008 +0000 |
| tree | 87faea68b182e4ad706a5115bc95457bf923685d | |
| parent | dcf114e8610784e15c89eed2ad3ca930fa0634ed [diff] |
Transform (x << (y&31)) -> (x << y). This takes advantage of the fact x86 shift instructions 2nd operand (shift count) is limited to 0 to 31 (or 63 in the x86-64 case). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55558 91177308-0d34-0410-b5e6-96231b3b80d8