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关于使用sycl进行异构编程时输出c++运行时差异导致的异常不匹配问题。 #838

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#841
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关于使用sycl进行异构编程时输出c++运行时差异导致的异常不匹配问题。#838
#841

Description

@Aimol-l
Aimol-l
opened on Oct 25, 2026

问题描述：
sycl lane 的 libtensorvia.so 里同时进了 libsycl 的 libstdc++ 符号和 llvm 主体的 libc++ 符号，测试二进制（libc++）的 catch (const std::exception&) 匹配不到 .so 内实际抛出的那个 std::exception 实体（两套 STL 的 typeinfo 不是一个东西）。
所以在 src/backend/cpu/ops/*.cpp 里找抛点能找到 throw std::runtime_error，代码本身没毛病——坏的是链接进同一个 .so 的两个 C++ 运行时。

复现：
git clone https://github.com/Aimol-l/Tensorvia.git

sycl + llvm 运行测试程序异常：mcpp test --features sycl --accel sycl

Running main() from /home/aimol/.mcpp/xpkgs/compat-x-gtest/1.17.0/googletest-1.17.0/googletest/src/gtest_main.cc
[==========] Running 23 tests from 11 test suites.
[----------] Global test environment set-up.
[----------] 1 test from Tensorvia
[ RUN      ] Tensorvia.BasicArithmetic
[       OK ] Tensorvia.BasicArithmetic (0 ms)
[----------] 1 test from Tensorvia (0 ms total)

[----------] 6 tests from View
[ RUN      ] View.SliceReadAndInPlaceArithmetic
[       OK ] View.SliceReadAndInPlaceArithmetic (0 ms)
[ RUN      ] View.TransposedView
[       OK ] View.TransposedView (0 ms)
[ RUN      ] View.CloneAndTypecast
[       OK ] View.CloneAndTypecast (0 ms)
[ RUN      ] View.Permute3D
[       OK ] View.Permute3D (0 ms)
[ RUN      ] View.InPlaceRejectsNonContiguous
/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:160: Failure
Expected: ops::Add(xt, 1.0f) throws an exception of type std::exception.
  Actual: it throws a different type.

/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:161: Failure
Expected: ops::Relu(xt) throws an exception of type std::exception.
  Actual: it throws a different type.

/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:162: Failure
Expected: ops::Fill(xt, 5.0f) throws an exception of type std::exception.
  Actual: it throws a different type.

/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:163: Failure
Expected: ops::Transpose(xt) throws an exception of type std::exception.
  Actual: it throws a different type.

[  FAILED  ] View.InPlaceRejectsNonContiguous (0 ms)
[ RUN      ] View.DstBinaryOnTransposedView
[       OK ] View.DstBinaryOnTransposedView (0 ms)
[----------] 6 tests from View (0 ms total)

[----------] 1 test from Tensor
[ RUN      ] Tensor.ReferenceSemantics
[       OK ] Tensor.ReferenceSemantics (0 ms)
[----------] 1 test from Tensor (0 ms total)

[----------] 1 test from DType
[ RUN      ] DType.MixedPromotion
[       OK ] DType.MixedPromotion (0 ms)
[----------] 1 test from DType (0 ms total)

[----------] 1 test from MatMul
[ RUN      ] MatMul.MatchesNaiveGemm
[       OK ] MatMul.MatchesNaiveGemm (39 ms)
[----------] 1 test from MatMul (39 ms total)

[----------] 3 tests from Reduce
[ RUN      ] Reduce.ArgmaxArgminIndexType
[       OK ] Reduce.ArgmaxArgminIndexType (0 ms)
[ RUN      ] Reduce.OneDimAxis
[       OK ] Reduce.OneDimAxis (0 ms)
[ RUN      ] Reduce.ArgmaxTieBreak
[       OK ] Reduce.ArgmaxTieBreak (0 ms)
[----------] 3 tests from Reduce (0 ms total)

[----------] 3 tests from Broadcast
[ RUN      ] Broadcast.Arithmetic
/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:389: Failure
Expected: (brow + bad) throws an exception of type std::exception.
  Actual: it throws a different type.

/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:392: Failure
Expected: ops::Add(brow, bmat, bdst2) throws an exception of type std::exception.
  Actual: it throws a different type.

[  FAILED  ] Broadcast.Arithmetic (0 ms)
[ RUN      ] Broadcast.Comparison
[       OK ] Broadcast.Comparison (0 ms)
[ RUN      ] Broadcast.ScalarComparison
[       OK ] Broadcast.ScalarComparison (0 ms)
[----------] 3 tests from Broadcast (0 ms total)

[----------] 1 test from Metadata
[ RUN      ] Metadata.DimArray
/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:489: Failure
Expected: (Tensor({1, 1, 1, 1, 1, 1, 1, 1, 1}, DataType::FLOAT32)) throws an exception of type std::exception.
  Actual: it throws a different type.

[  FAILED  ] Metadata.DimArray (0 ms)
[----------] 1 test from Metadata (0 ms total)

[----------] 4 tests from Numeric
[ RUN      ] Numeric.Transcendentals
[       OK ] Numeric.Transcendentals (0 ms)
[ RUN      ] Numeric.IntegerSoftmax
[       OK ] Numeric.IntegerSoftmax (0 ms)
[ RUN      ] Numeric.ReductionsAndSpecialFunctions
[       OK ] Numeric.ReductionsAndSpecialFunctions (0 ms)
[ RUN      ] Numeric.NormsAndLosses
[       OK ] Numeric.NormsAndLosses (0 ms)
[----------] 4 tests from Numeric (0 ms total)

[----------] 1 test from Create
[ RUN      ] Create.ArangeLinspaceEye
/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:588: Failure
Expected: ops::Arange(0, 5, 0.0f) throws an exception of type std::exception.
  Actual: it throws a different type.

/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:589: Failure
Expected: ops::Arange(0, 5, -1.0f) throws an exception of type std::exception.
  Actual: it throws a different type.

[  FAILED  ] Create.ArangeLinspaceEye (0 ms)
[----------] 1 test from Create (0 ms total)

[----------] 1 test from Indexing
[ RUN      ] Indexing.WhereIndexSelectGather
/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:714: Failure
Expected: ops::IndexSelect(emb, 0, gi) throws an exception of type std::exception.
  Actual: it throws a different type.

/home/aimol/Documents/C++/Workspace/MCPP/Tensorvia/tests/test.cpp:717: Failure
Expected: ops::IndexSelect(emb, 0, idx_bad) throws an exception of type std::exception.
  Actual: it throws a different type.

[  FAILED  ] Indexing.WhereIndexSelectGather (0 ms)
[----------] 1 test from Indexing (0 ms total)

[----------] Global test environment tear-down
[==========] 23 tests from 11 test suites ran. (41 ms total)
[  PASSED  ] 18 tests.
[  FAILED  ] 5 tests, listed below:
[  FAILED  ] View.InPlaceRejectsNonContiguous
[  FAILED  ] Broadcast.Arithmetic
[  FAILED  ] Metadata.DimArray
[  FAILED  ] Create.ArangeLinspaceEye
[  FAILED  ] Indexing.WhereIndexSelectGather

 5 FAILED TESTS
bench ... ok (2.57s)
add f32 16M                     7.141 ms      28.19 GB/s
mul f32 16M                     7.171 ms      28.07 GB/s
add-scalar f32 16M              3.005 ms      44.66 GB/s
exp f32 4M                      1.350 ms      24.86 GB/s
sum f32 16M                     8.508 ms       7.89 GB/s
sum-axis1 4096x4096             2.435 ms      27.57 GB/s
transpose2d 1024x1024           0.743 ms      11.29 GB/s
transpose3d 64^3                0.042 ms      50.13 GB/s
gather permute 128x64x64        1.552 ms       2.70 GB/s
matmul f32 256                  0.339 ms      99.11 GFLOPS
matmul f32 512                  2.644 ms     101.54 GFLOPS
arange f32 16M                 16.450 ms       4.08 GB/s
where f32 16M                  55.580 ms       4.83 GB/s
where-scalar f32 16M            7.966 ms      25.27 GB/s
index_select 4096x64            0.024 ms      86.76 GB/s
gather 1024x1024                2.327 ms       5.41 GB/s
layer_norm f32 8192x4096       20.891 ms      25.70 GB/s
rms_norm f32 8192x4096         16.918 ms      23.80 GB/s
randn f32 16M                  70.385 ms       0.95 GB/s
mse_loss f32 16M               21.097 ms       6.36 GB/s
nll_loss f32 65536x1024         0.093 ms       2.81 GB/s
cross_entropy f32 8192x256      1.708 ms      19.65 GB/s

error: test result: FAILED. 1 passed; 1 failed; finished in 49.74s (build 44.50s + run 2.57s)

failures:
    test

sycl + gcc 运行测试程序正常：mcpp test --toolchain gcc@16.1.0 --features sycl --accel sycl

Running main() from /home/aimol/.mcpp/xpkgs/compat-x-gtest/1.17.0/googletest-1.17.0/googletest/src/gtest_main.cc
[==========] Running 23 tests from 11 test suites.
[----------] Global test environment set-up.
[----------] 1 test from Tensorvia
[ RUN      ] Tensorvia.BasicArithmetic
[       OK ] Tensorvia.BasicArithmetic (0 ms)
[----------] 1 test from Tensorvia (0 ms total)

[----------] 6 tests from View
[ RUN      ] View.SliceReadAndInPlaceArithmetic
[       OK ] View.SliceReadAndInPlaceArithmetic (2 ms)
[ RUN      ] View.TransposedView
[       OK ] View.TransposedView (0 ms)
[ RUN      ] View.CloneAndTypecast
[       OK ] View.CloneAndTypecast (0 ms)
[ RUN      ] View.Permute3D
[       OK ] View.Permute3D (0 ms)
[ RUN      ] View.InPlaceRejectsNonContiguous
[       OK ] View.InPlaceRejectsNonContiguous (0 ms)
[ RUN      ] View.DstBinaryOnTransposedView
[       OK ] View.DstBinaryOnTransposedView (0 ms)
[----------] 6 tests from View (3 ms total)

[----------] 1 test from Tensor
[ RUN      ] Tensor.ReferenceSemantics
[       OK ] Tensor.ReferenceSemantics (0 ms)
[----------] 1 test from Tensor (0 ms total)

[----------] 1 test from DType
[ RUN      ] DType.MixedPromotion
[       OK ] DType.MixedPromotion (0 ms)
[----------] 1 test from DType (0 ms total)

[----------] 1 test from MatMul
[ RUN      ] MatMul.MatchesNaiveGemm
[       OK ] MatMul.MatchesNaiveGemm (57 ms)
[----------] 1 test from MatMul (57 ms total)

[----------] 3 tests from Reduce
[ RUN      ] Reduce.ArgmaxArgminIndexType
[       OK ] Reduce.ArgmaxArgminIndexType (0 ms)
[ RUN      ] Reduce.OneDimAxis
[       OK ] Reduce.OneDimAxis (0 ms)
[ RUN      ] Reduce.ArgmaxTieBreak
[       OK ] Reduce.ArgmaxTieBreak (0 ms)
[----------] 3 tests from Reduce (0 ms total)

[----------] 3 tests from Broadcast
[ RUN      ] Broadcast.Arithmetic
[       OK ] Broadcast.Arithmetic (0 ms)
[ RUN      ] Broadcast.Comparison
[       OK ] Broadcast.Comparison (0 ms)
[ RUN      ] Broadcast.ScalarComparison
[       OK ] Broadcast.ScalarComparison (0 ms)
[----------] 3 tests from Broadcast (0 ms total)

[----------] 1 test from Metadata
[ RUN      ] Metadata.DimArray
[       OK ] Metadata.DimArray (0 ms)
[----------] 1 test from Metadata (0 ms total)

[----------] 4 tests from Numeric
[ RUN      ] Numeric.Transcendentals
[       OK ] Numeric.Transcendentals (0 ms)
[ RUN      ] Numeric.IntegerSoftmax
[       OK ] Numeric.IntegerSoftmax (0 ms)
[ RUN      ] Numeric.ReductionsAndSpecialFunctions
[       OK ] Numeric.ReductionsAndSpecialFunctions (0 ms)
[ RUN      ] Numeric.NormsAndLosses
[       OK ] Numeric.NormsAndLosses (0 ms)
[----------] 4 tests from Numeric (0 ms total)

[----------] 1 test from Create
[ RUN      ] Create.ArangeLinspaceEye
[       OK ] Create.ArangeLinspaceEye (0 ms)
[----------] 1 test from Create (0 ms total)

[----------] 1 test from Indexing
[ RUN      ] Indexing.WhereIndexSelectGather
[       OK ] Indexing.WhereIndexSelectGather (0 ms)
[----------] 1 test from Indexing (0 ms total)

[----------] Global test environment tear-down
[==========] 23 tests from 11 test suites ran. (63 ms total)
[  PASSED  ] 23 tests.
bench ... ok (0.44s)
add f32 16M                     3.035 ms      66.33 GB/s
mul f32 16M                     7.189 ms      28.00 GB/s
add-scalar f32 16M              3.127 ms      42.92 GB/s
exp f32 4M                      0.342 ms      98.21 GB/s
sum f32 16M                     0.660 ms     101.72 GB/s
sum-axis1 4096x4096             0.605 ms     110.96 GB/s
transpose2d 1024x1024           0.205 ms      40.84 GB/s
transpose3d 64^3                0.050 ms      42.08 GB/s
gather permute 128x64x64        1.674 ms       2.50 GB/s
matmul f32 256                  0.077 ms     437.73 GFLOPS
matmul f32 512                  0.397 ms     675.61 GFLOPS
arange f32 16M                  3.726 ms      18.01 GB/s
where f32 16M                   5.163 ms      51.99 GB/s
where-scalar f32 16M            3.842 ms      52.40 GB/s
index_select 4096x64            0.022 ms      96.28 GB/s
gather 1024x1024                0.511 ms      24.64 GB/s
layer_norm f32 8192x4096        6.651 ms      80.72 GB/s
rms_norm f32 8192x4096          6.490 ms      62.05 GB/s
randn f32 16M                   6.599 ms      10.17 GB/s
mse_loss f32 16M                1.772 ms      75.75 GB/s
nll_loss f32 65536x1024         0.057 ms       4.64 GB/s
cross_entropy f32 8192x256      0.221 ms     152.17 GB/s

 test result ok. 2 passed; 0 failed; finished in 64.49s (build 60.79s + run 0.44s)
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