| commit | eaf8a32859c0c0d485907785bb6b4c1426ed42dd | [log] [tgz] |
|---|---|---|
| author | Andrew Trick <atrick@apple.com> | Wed Feb 26 22:07:26 2014 +0000 |
| committer | Andrew Trick <atrick@apple.com> | Wed Feb 26 22:07:26 2014 +0000 |
| tree | 2f6b58101ae1a7e48c69d24367827b4f51e00415 | |
| parent | 692c94c1c9b5642cecb8fc7b6fa5ce3145b70ff1 [diff] |
Add a limit to the heuristic that register allocates instructions in local order. This handles pathological cases in which we see 2x increase in spill code for large blocks (~50k instructions). I don't have a unit test for this behavior. Fixes rdar://16072279. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202304 91177308-0d34-0410-b5e6-96231b3b80d8