| commit | a363a9b71afcf326d376445f6f3cae0c36e6e9d9 | [log] [tgz] |
|---|---|---|
| author | Dan Gohman <gohman@apple.com> | Sun Feb 28 00:08:44 2010 +0000 |
| committer | Dan Gohman <gohman@apple.com> | Sun Feb 28 00:08:44 2010 +0000 |
| tree | 6f3c3a6ffd81cca9d0b1d4aeb48d96ed7cb36a3b | |
| parent | 53a50e2546743e6f2d896ba37e85e7ee983a6b95 [diff] |
Don't unconditionally suppress hoisting of instructions with implicit defs or uses. The regular def and use checking below covers them, and can be more precise. It's safe to hoist an instruction with a dead implicit def if the register isn't live into the loop header. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97352 91177308-0d34-0410-b5e6-96231b3b80d8