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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 | 48d392e81ec159657c5041856df5683f8aec627d (patch) | |
| tree | 6b2a491692cc7399af7f8827fe8ab94a0ce0bd9f /llvm/lib/CodeGen/ScheduleDAG.cpp | |
| parent | cd1c2f9fb1f5484b3665f69789b6fa92837e2b72 (diff) | |
| download | bcm5719-llvm-48d392e81ec159657c5041856df5683f8aec627d.tar.gz bcm5719-llvm-48d392e81ec159657c5041856df5683f8aec627d.zip | |
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.
llvm-svn: 168773
Diffstat (limited to 'llvm/lib/CodeGen/ScheduleDAG.cpp')
0 files changed, 0 insertions, 0 deletions
