diff options
| author | Matthias Braun <matze@braunis.de> | 2016-12-17 01:15:59 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2016-12-17 01:15:59 +0000 |
| commit | e813cf457ae2e4e7d6e219b01665e14c31e17ef4 (patch) | |
| tree | 6a5b9a046b100158e4f9273ef799ac2fb3834f64 /lldb/scripts/Python/modify-python-lldb.py | |
| parent | 39ae3d5c4e5552fc1edbdf6cf605a5158932dfd5 (diff) | |
| download | llvm-e813cf457ae2e4e7d6e219b01665e14c31e17ef4.zip llvm-e813cf457ae2e4e7d6e219b01665e14c31e17ef4.tar.gz llvm-e813cf457ae2e4e7d6e219b01665e14c31e17ef4.tar.bz2 | |
AArch64CollectLOH: Rewrite as block-local analysis.
Re-apply r288561: Liveness tracking should be correct now after r290014.
Previously this pass was using up to 5% compile time in some cases which
is a bit much for what it is doing. The pass featured a full blown
data-flow analysis which in the default configuration was restricted to a
single block.
This rewrites the pass under the assumption that we only ever work on a
single block. This is done in a single pass maintaining a state machine
per general purpose register to catch LOH patterns.
Differential Revision: https://reviews.llvm.org/D27329
llvm-svn: 290026
Diffstat (limited to 'lldb/scripts/Python/modify-python-lldb.py')
0 files changed, 0 insertions, 0 deletions