| commit | 323d8c3ed72c9e440c2079e8c1954af69357c7cf | [log] [tgz] |
|---|---|---|
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | Sat Nov 21 02:05:21 2009 +0000 |
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | Sat Nov 21 02:05:21 2009 +0000 |
| tree | fbdf37ef1d9b9a29f9f7e47b01c4d07f703c1125 | |
| parent | 983c7fe847dd3f46945f0117ab19345b9c68e88f [diff] |
Be more clever about calculating live variables through new basic blocks. When splitting a critical edge, the registers live through the edge are: - Used in a PHI instruction, or - Live out from the predecessor, and - Live in to the successor. This allows the coalescer to eliminate even more phi joins. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89530 91177308-0d34-0410-b5e6-96231b3b80d8