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feat(vpto): support low precision types#346

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mouliangyu:feature-vpto-backendfrom
Zhendong404:feature-low-precision-types
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feat(vpto): support low precision types#346
Zhendong404 wants to merge 1 commit into
mouliangyu:feature-vpto-backendfrom
Zhendong404:feature-low-precision-types

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@Zhendong404
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Summary

  • add VPTO and TileLang low-precision type support, including vcvt helpers and verifier/lowering updates
  • reorganize low-precision lit coverage under test/lit/pto/low_precision and test/lit/vpto/low_precision
  • add VPTO host validation coverage for low-precision roundtrip cases

Validation

  • cmake --build build --target ptoas
  • lit -sv build/test/lit/pto/low_precision
  • lit -sv build/test/lit/vpto/low_precision
  • bash test/vpto/scripts/run_host_vpto_validation_parallel.sh
    • run with PTOAS_FLAGS='--pto-backend=vpto --vpto-emit-hivm-llvm --pto-arch a5'
    • result: 265/265 PASS

@mouliangyu mouliangyu force-pushed the feature-vpto-backend branch from 5e223fb to 42b74f9 Compare May 14, 2026 00:19
@Zhendong404 Zhendong404 marked this pull request as ready for review May 14, 2026 02:01
@Zhendong404 Zhendong404 force-pushed the feature-low-precision-types branch from 22d8ecf to 16bce92 Compare May 20, 2026 01:53
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@mouliangyu mouliangyu left a comment

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pto 代码建议合入主仓,否则会成为 rebase 的巨大阻力

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