commit 1e159f4b75187455c2ee5b060873d7a675840eed
author Tobias Grosser <tobias@grosser.es> Sat Mar 03 19:27:54 2018 +0000
committer Tobias Grosser <tobias@grosser.es> Sat Mar 03 19:27:54 2018 +0000
tree 9ffec154c08d4d2065644a28c32904353eec70d6
parent d3a1fe24c3cec21006e54b21ba672e03c269415d

[ScopInfo] Do not use the set dimension ids to carry loop information

isl does not guarantee that set dimension ids will be preserved, so using them
to carry information is not a good idea. Furthermore, the loop information can
be derived without problem from the statement itself. As this even requires
less code than propagating loop information on set dimension ids, starting from
this commit we just derive the loop information in collectSurroundingLoops
directly from the IR.

Interestingly this also results in a couple of isl sets to take a simpler
representation.

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@326664 91177308-0d34-0410-b5e6-96231b3b80d8