Commit Graph

4 Commits

Author SHA1 Message Date
Tobias Grosser c825fae020 Tighten the PHI modeling test cases
While looking through the test cases I realized we did not have a CHECK line
for a duplicate memory access which we may want to eliminate later. To ensure
we do not have (or later introduce) unnecessary memory accesses, we now tighten
the test cases to look for such a pattern (and add the CHECK: line that shows
the redundant memory access).

llvm-svn: 238227
2015-05-26 18:05:45 +00:00
David Blaikie bad3ff207f Update Polly tests to handle explicitly typed gep changes in LLVM
llvm-svn: 230784
2015-02-27 19:20:19 +00:00
Tobias Grosser d1e33e7061 ScopDetection: Only detect scops that have at least one read and one write
Scops that only read seem generally uninteresting and scops that only write are
most likely initializations where there is also little to optimize.  To not
waste compile time we bail early.

Differential Revision: http://reviews.llvm.org/D7735

llvm-svn: 229820
2015-02-19 05:31:07 +00:00
Johannes Doerfert 0ff23ec544 Model PHI nodes without demoting them
This allows us to model PHI nodes in the polyhedral description
  without demoting them. The modeling however will result in the
  same accesses as the demotion would have introduced.

Differential Revision: http://reviews.llvm.org/D7415

llvm-svn: 228433
2015-02-06 20:13:15 +00:00