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| author | Andrew Trick <atrick@apple.com> | 2012-11-28 05:13:28 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2012-11-28 05:13:28 +0000 |
| commit | 8b1496c922b6a21296f7d42172df45bf205d5419 (patch) | |
| tree | d8ea587e9dc64b671e0954252aa11c2597b8e20b /tools/llvm-bcanalyzer | |
| parent | 53e98a2c4aa7065f4136c5263b14192036c1e056 (diff) | |
| download | llvm-8b1496c922b6a21296f7d42172df45bf205d5419.tar.gz llvm-8b1496c922b6a21296f7d42172df45bf205d5419.tar.bz2 llvm-8b1496c922b6a21296f7d42172df45bf205d5419.tar.xz | |
misched: Analysis that partitions the DAG into subtrees.
This is a simple, cheap infrastructure for analyzing the shape of a
DAG. It recognizes uniform DAGs that take the shape of bottom-up
subtrees, such as the included matrix multiplication example. This is
useful for heuristics that balance register pressure with ILP. Two
canonical expressions of the heuristic are implemented in scheduling
modes: -misched-ilpmin and -misched-ilpmax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168773 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-bcanalyzer')
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