[LLVM] Optimize G_SHUFFLE_VECTOR into more efficient generic opcodes#41

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ValentijnvdBeek wants to merge 9 commits intoaie-publicfrom vvandebe.shufflevector.pattern.optimization

+1,170-358

Commits on Sep 23, 2024

[AIE2] Enable G_CONCAT_VECTOR optimizations for AIE2
ValentijnvdBeek
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[GISel][CombinerHelper] Add stream generator type for combiners
ValentijnvdBeek
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[GISel][CombinerHelper] Counter stream that counts from 0 to N
ValentijnvdBeek
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[GISel][CombinerHelper] Use a stream to check for G_CONCAT_VECTOR
ValentijnvdBeek
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[NIT] Remove some useless newlines and add a newline for the test
ValentijnvdBeek
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[GISel][CombinerHelper] Add a helper that unmerges a vector to a target size
ValentijnvdBeek
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[GISel][CombinerHelper] Add matcher code for unmerging the first half of vector A and B
ValentijnvdBeek
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[GISel][CombinerHelper] Add a function that chains a list of generators together
ValentijnvdBeek
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[GISel][CombinerHelper] Add a combiner to concatenate the first halfs of two vectors together
ValentijnvdBeek
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