Legalizer support for vectors in G_FPEXT #548
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Sameeranjoshi
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This was referenced Jul 16, 2025
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Jul 21, 2025
Patch adds tests to make sure all the tests with `vector.multi_reduction` generate successfully pass Peano legalizer and generate efficient vectorized code. This patch checks only the IREE side to keep the dependency minimun on Peano. (Depends on Peano: 1. Xilinx/llvm-aie#548 2. Xilinx/llvm-aie#557 ) 1. `reassociateFpReductions=true` is must else code is scalarized. This flag could be added into the IREE vectorization pipeline to trigger automatically. 2. bf16/i32/f32 all types with different sizes work now.
Sameeranjoshi
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Jul 21, 2025
Patch adds tests to make sure all the tests with `vector.multi_reduction` generate successfully pass Peano legalizer and generate efficient vectorized code. This patch checks only the IREE side to keep the dependency minimun on Peano. (Depends on Peano: 1. Xilinx/llvm-aie#548 2. Xilinx/llvm-aie#557 ) 1. `reassociateFpReductions=true` is must else code is scalarized. This flag could be added into the IREE vectorization pipeline to trigger automatically. 2. bf16/i32/f32 all types with different sizes work now.
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Jul 22, 2025
…d code. This patch is dependent on Xilinx#548 and Xilinx#557. Previously bf16 and f32 failed to generate fully vectorized code and used to scalarize, this test makes sures different types and vector sizes work and are fully vectorized. This is a supplementary patch for verifying below pipeline: Part 1: `vector.multi_reduction` to `vector.reduction` to `llvm.vector.reduce.fadd.*` nod-ai/iree-amd-aie#1336 Part 2: Further lowers to AIE2P instructions.(This patch)
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G_FPEXTcrashed for vector types when converting<32xbfloat> -> <32xfloat>as vectors were not handled in legalizer. This patch adds support for vectors with a custom legalizer rule using following patternconverts to something like below