[GitHub] [tvm] cconvey commented on pull request #12639: [HEXAGON] Disable automatic unrolling in LLVM

[GitBox <gi...@apache.org>]

cconvey commented on PR #12639:
URL: https://github.com/apache/tvm/pull/12639#issuecomment-1250361906

   I see that this is failing CI on Hexagon with this error ([link](https://ci.tlcpack.ai/blue/organizations/jenkins/tvm/detail/PR-12639/1/pipeline/433/#step-1524-log-205)): 
   
   ```
   [2022-08-29T22:19:07.000Z] tests/python/contrib/test_hexagon/test_2d_physical_buffers.py::TestElementWise::test_build[nhwc-nhwc-int8-16-32-32x32-nhwc-global-hexagon] LLVM ERROR: Cannot select: 0x3fbc580: v8i8 = HexagonISD::VASL 0x3e53240, Constant:i32<1>
   [2022-08-29T22:19:07.000Z]   0x3e53240: v8i8,ch = load<(load (s64) from %ir.cgep31, align 64, !tbaa !97)> 0x3da4928, 0x3d14738, undef:i32
   [2022-08-29T22:19:07.000Z]     0x3d14738: i32 = add 0x3d14390, Constant:i32<-128>
   [2022-08-29T22:19:07.000Z]       0x3d14390: i32,ch = CopyFromReg 0x3da4928, Register:i32 %14
   [2022-08-29T22:19:07.000Z]         0x3d14a78: i32 = Register %14
   [2022-08-29T22:19:07.000Z]       0x3d13f80: i32 = Constant<-128>
   [2022-08-29T22:19:07.000Z]     0x3f81c38: i32 = undef
   [2022-08-29T22:19:07.000Z]   0x3d14120: i32 = Constant<1>
   [2022-08-29T22:19:07.000Z] In function: default_function_compute_
   [2022-08-29T22:19:07.000Z] Fatal Python error: Aborted
   ```
   
   If CI is using LLVM build provided by Hexagon SDK 4.5.0.3 ([link](https://github.com/apache/tvm/blob/81b477aa4fc4c42f889fdec1a8064916f90bcf57/docker/Dockerfile.ci_hexagon#L20)), does this mean CI would need a newer version of the Hexagon SDK for this PR?


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