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archived-llvm/lib/Transforms/Vectorize
Simon Pilgrim 8678b08600 [SLP] Add support for commutative icmp/fcmp predicates
For the cases where the icmp/fcmp predicate is commutative, use reorderInputsAccordingToOpcode to collect and commute the operands.

This requires a helper to recognise commutativity in both general Instruction and CmpInstr types - the CmpInst::isCommutative doesn't overload the Instruction::isCommutative method for reasons I'm not clear on (maybe because its based on predicate not opcode?!?).

Differential Revision: https://reviews.llvm.org/D59992

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357266 91177308-0d34-0410-b5e6-96231b3b80d8
2019-03-29 15:28:25 +00:00
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