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Commits on Jan 9, 2018

• NewGVN: Fix PR/33367, which was causing us to delete non-copy intrinsics accidentally in some rare cases

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Commits on Oct 6, 2017

• NewGVN: Factor out duplicate parts of OpIsSafeForPHIOfOps

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Commits on Oct 3, 2017

• SparseSolver: Rename getOrInitValueState to getValueState, matching what SCCP calls it

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Commits on Oct 2, 2017

• Template the sparse propagation solver instead of using void pointers

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Commits on Sep 30, 2017

• NewGVN: Fix PR 34473, by not using ExactlyEqualsExpression for finding

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• NewGVN: Evaluate phi of ops expressions before creating phi node

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• NewGVN: Allow dependent PHI of ops

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• NewGVN: Make OpIsSafeForPhiOfOps non-recursive

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Commits on Sep 27, 2017

• MemorySSAUpdater: Only add phis to insertedphis if we actually inserted them, not if we just found existing ones

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Commits on Sep 20, 2017

• GVNSink: Make ModelledPHIs constructor linear (and avoid edge case it worries about) by avoiding getIncomingValueForBlock

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• Revert "[GVNSink] Remove dependency on SmallPtrSet iteration order."

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• NewGVN: Remove unused includes

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Commits on Sep 5, 2017

• NewGVN: Fix PR 34430 - we need to look through predicateinfo copies to detect self-cycles of phi nodes. We also need to not ignore certain types of arguments when testing whether the phi has a bac…

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• NewGVN: Fix PR 34452 by passing instruction all the way down when we do aggregate value simplification

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• NewGVN: Detect copies through predicateinfo

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• NewGVN: Change where check for original instruction in phi of ops leader finding is done. Where we had it before, we would stop looking when we hit the original instruction, but skip it. Now we ski…

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Commits on Sep 2, 2017

• Fix PR/33305. caused by trying to simplify expressions in phi of ops that should have no leaders.

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Commits on Sep 1, 2017

• NewGVN: Make sure we don't incorrectly use PredicateInfo when doing PHI of ops

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Commits on Aug 30, 2017

• NewGVN: Make sure we add the correct user if we swapped the comparison operands

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• NewGVN: Allow simplification into variables

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Commits on Aug 26, 2017

• NewGVN: Fix PR33204 - We need to add memory users when we bypass memorydefs for loads, not just when we do it for stores.

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Commits on Aug 24, 2017

• NewGVN: We weren't properly simplifying selects with equal arguments due to a thinko.

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Commits on Jun 30, 2017

• A little wordsmithing of dominator verification comments.

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• Add comments on sibling and parent properties in dominator trees

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Commits on Jun 29, 2017

• PredicateInfo: Use OrderedInstructions instead of our homemade

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• NewGVN: Remove useless test in addPhiOfOps.

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• Remove unneeded else from OrderedInstructions::dominates.

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Commits on Jun 19, 2017

• NewGVN: Fix PR 33461, caused by slightly overzealous verification.

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Commits on Jun 14, 2017

• PredicateInfo: Don't insert conditional info when a conditional branch jumps to the same target regardless of condition

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• NewGVN: This is wrong by inspection, it will not cause an issue currently due to other limitations, i believe. This also means i can't make a test for it.

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Commits on Jun 6, 2017

• NewGVN: Fix PR/33187. This is a bug caused by two things:

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Commits on May 31, 2017

• NewGVN: Fix PR 33185 by checking whether we need to recursively

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• Fix test that wasn't update_test_check'd

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• InstructionSimplify: Remove now-redundant reachability tests, as dominates() already does them

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Commits on May 30, 2017

• NewGVN: Compute hash value of expression on demand and use it in inequality testing.

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