| commit | fb11288109329cb736d9f49769581a0d0c23fe19 | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Mon Mar 23 08:01:15 2009 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Mon Mar 23 08:01:15 2009 +0000 |
| tree | c2d5d369ef2db0b2fab9a7fc0aa4fbbb6a98a9c5 | |
| parent | 7d6d4b360fb8c1895b57eeb1284e792f953ea7ee [diff] |
Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67512 91177308-0d34-0410-b5e6-96231b3b80d8