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3 Commits

Author SHA1 Message Date
Max Kazantsev
511c1a306c [SCEV] Re-enable "Cache results of computeExitLimit" 
The patch rL309080 was reverted because it did not clean up the cache on "forgetValue"
method call. This patch re-enables this change, adds the missing check and introduces
two new unit tests that make sure that the cache is cleaned properly.

Differential Revision: https://reviews.llvm.org/D36087


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309925 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-08-03 08:41:30 +00:00
Sanjoy Das
e47ec8cfbd Revert "[SCEV] Cache results of computeExitLimit" 
This reverts commit r309080.  The patch needs to clear out the
ScalarEvolution::ExitLimits cache in forgetMemoizedResults.

I've replied on the commit thread for the patch with more details.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309357 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-07-28 03:25:07 +00:00
Max Kazantsev
8df9b4fbf9 [SCEV] Cache results of computeExitLimit 
This patch adds a cache for computeExitLimit to save compilation time. A lot of examples of
tests that take extensive time to compile are attached to the bug 33494.

Differential Revision: https://reviews.llvm.org/D35827


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309080 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-07-26 04:55:54 +00:00