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| author | Arnaud A. de Grandmaison <arnaud.degrandmaison@arm.com> | 2015-03-01 20:39:34 +0000 |
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| committer | Arnaud A. de Grandmaison <arnaud.degrandmaison@arm.com> | 2015-03-01 20:39:34 +0000 |
| commit | 21fa09890ce76b2b5e24059e2dafd2b8e3db7a9f (patch) | |
| tree | 6511d5c686d72df67c212229c57791aaf23809a3 /llvm/lib/Object/IRObjectFile.cpp | |
| parent | bea1ab46d9ffdfc50108580c712596a54323a94c (diff) | |
| download | llvm-21fa09890ce76b2b5e24059e2dafd2b8e3db7a9f.zip llvm-21fa09890ce76b2b5e24059e2dafd2b8e3db7a9f.tar.gz llvm-21fa09890ce76b2b5e24059e2dafd2b8e3db7a9f.tar.bz2 | |
[PBQP] Do not add an edge between nodes with totally disjoint allowed registers
Such edges are zero matrix, and they bring no additional info to the
allocation problem, apart from contributing to nodes' degree. Removing
those edges is expected to improve allocation time.
Tune the spill cost comparison, as this gives better average performances
now that the nodes' degrees has changed.
llvm-svn: 230904
Diffstat (limited to 'llvm/lib/Object/IRObjectFile.cpp')
0 files changed, 0 insertions, 0 deletions