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2019 Sep 11
2
Loop Opt WG Meeting Minutes for Sep 11, 2019
--------------------------- Wed, Sep 11, 2019: --------------------------- - LICM vs Loop Sink Strategy (Whitney) - LICM and SCEV expander host code with no regards to increased live-ranges. This is a long standing issue where historically preference has been to keep LICM more aggressive. - Two questions from IBM side: a. This problem is not specific to the POWER
2019 Sep 13
3
Loop Opt WG Meeting Minutes for Sep 11, 2019
...SCEV expander host code with no regards to increased live-ranges. This is a long standing issue where historically preference has been to keep LICM more aggressive. This issue also motivated adding metadata to disable LICM (l lvm.loop.licm.disable) recently. https://reviews.llvm.org/D64557 - Two questions from IBM side: a. This problem is not specific to the POWER platform, so we are wondering if other people are interested? - b. Where would be the best place to address this issue? - Since it's hard to come up with an accurate register pressure...