Fix linker file path support, add `ObjectCode` constructor tests for `ltoir` inputs, and expose `code_type` by Copilot · Pull Request #890 · NVIDIA/cuda-python

Copilot · 2025-08-22T02:02:16Z

Fix linker file path support for ObjectCode constructors
Add comprehensive test coverage for ObjectCode constructor methods
Flatten nested if statements for better readability
Remove redundant tests and improve test organization
Implement NVCC-based testing for fatbin and object/library tests
Add missing test_object_code_load_ptx_from_file and group tests properly
Remove self-explanatory comments and clarify conditional logic in linker

Bug Fix Complete: Fixed TypeError: Expected type bytes, but got str when using ObjectCode instances created from file paths with the Linker class.

Test Coverage Complete: Added comprehensive tests for all ObjectCode constructor methods (from_ltoir, from_fatbin, from_object, from_library) with both file-based and in-memory variants, plus integration tests with the Linker class.

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…object, and from_library constructors Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

…value validation Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

leofang

@copilot I think you missed my comment #663 (comment), in particular Step 1 there. We need to make sure files on disk can be also consumed by the linker.

Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

leofang

@copilot

Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

Copilot · 2025-08-25T00:27:20Z

@copilot

Step 1 from your original comment is already implemented in the current code. The linker now properly handles both file paths (str) and in-memory data (bytes) for ObjectCode instances:

File paths use nvjitlink.add_file() or cuLinkAddFile()
In-memory bytes use add_data() methods
Added comprehensive test coverage including integration tests

The bug where the linker crashed with "TypeError: Expected type bytes, but got str" when using file-based ObjectCode has been resolved.

leofang

@copilot

btw I noticed that there's still one test missing: test_object_code_load_ptx_from_file. Please add it, and make sure it's placed close to test_object_code_load_ptx. Please also group test_object_code_load_cubin and test_object_code_load_cubin_from_file together for better clarity.

…x fixture naming Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

Copilot · 2025-08-25T00:57:49Z

@copilot
btw I noticed that there's still one test missing: test_object_code_load_ptx_from_file. Please add it, and make sure it's placed close to test_object_code_load_ptx. Please also group ...

Added the missing test_object_code_load_ptx_from_file test and grouped the CUBIN and PTX tests together properly. The PTX tests are now adjacent to each other, and CUBIN tests are grouped. Commit: 5609cb1

leofang · 2025-09-17T23:21:24Z

pre-commit.ci fix

leofang · 2025-09-17T23:22:57Z

pre-commit.ci autofix

leofang · 2025-10-06T01:33:31Z

To make it easier to review, I've removed the ObjectCode constructor tests for the object, library, and fatbin inputs added by the Copilot. We can revisit this later.

leofang · 2025-10-06T01:34:30Z

/ok to test 727ead5

leofang · 2025-10-06T01:34:46Z

@brandon-b-miller could you review? 🙂

leofang · 2025-10-06T01:37:41Z

ping @benhg too

github-actions · 2025-10-07T19:46:08Z

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CopilotAI assigned Copilot and leofang Aug 22, 2025

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github-project-automationBot moved this to Todo in CCCL Aug 22, 2025

CopilotAIand others added 2 commits August 22, 2025 02:08

Add comprehensive tests for ObjectCode from_ltoir, from_fatbin, from_…
b2bbf37
…object, and from_library constructors Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

Enhance ObjectCode constructor tests with error handling and default …
abbb07a
…value validation Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

CopilotAI changed the title ~~[WIP] [FEA]: Tests for ltoir, fatbin, object, and library constructors~~Add comprehensive tests for ObjectCode constructor methodsAug 22, 2025

CopilotAI requested a review from leofang August 22, 2025 02:11

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Fix linker to handle file paths for ObjectCode constructors
9ee5bfc
Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

CopilotAI changed the title ~~Add comprehensive tests for ObjectCode constructor methods~~Fix linker file path support and add comprehensive ObjectCode constructor testsAug 24, 2025

CopilotAI requested a review from leofang August 24, 2025 05:50

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Comment threadcuda_core/cuda/core/experimental/_linker.py Outdated

Flatten nested if statements in linker _add_code_object method
f3aad44
Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

CopilotAI requested a review from leofang August 25, 2025 00:28

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Comment threadcuda_core/tests/test_module.py Outdated
Comment threadcuda_core/tests/test_module.py Outdated
Comment threadcuda_core/tests/test_module.py Outdated
Comment threadcuda_core/tests/test_module.py Outdated
Comment threadcuda_core/tests/test_module.py Outdated

Address review comments: reorganize tests, add NVCC-based testing, fi…
5609cb1
…x fixture naming Co-authored-by: leofang <5534781+leofang@users.noreply.github.com>

CopilotAI requested a review from leofang August 25, 2025 00:58

[pre-commit.ci] auto code formatting
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leofang closed this Sep 17, 2025

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leofang reopened this Sep 17, 2025

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leofang linked an issue Sep 25, 2025 that may be closed by this pull request
[FEA]: Tests for ltoir, fatbin, object, and library constructors #663
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leofang added 5 commits October 6, 2025 00:59

Merge branch 'main' into copilot/fix-663
fa33473

nit: reorder test to make it easier to follow
62e240d

rename fixture for clarity + purge object/library/fatbin tests for now
45d0b24

minor fixes
3665e41

make code_type public
727ead5

leofang changed the title ~~Fix linker file path support and add comprehensive ObjectCode constructor tests~~Fix linker file path support, add ObjectCode constructor tests for LTO IR inputs, and expose code_typeOct 6, 2025

leofang mentioned this pull request Oct 6, 2025
Mmason nvidia/bugfix/lto linking NVIDIA/numba-cuda#474
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leofang marked this pull request as ready for review October 6, 2025 01:34

leofang changed the title ~~Fix linker file path support, add ObjectCode constructor tests for LTO IR inputs, and expose code_type~~Fix linker file path support, add ObjectCode constructor tests for ltoir inputs, and expose code_typeOct 6, 2025

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kkraus14 approved these changes Oct 7, 2025
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Comment threadcuda_core/cuda/core/experimental/_linker.py

leofang approved these changes Oct 7, 2025
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leofang merged commit 9bb7531 into mainOct 7, 2025
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leofang deleted the copilot/fix-663 branch October 7, 2025 19:33

github-project-automationBot moved this from In Review to Done in CCCL Oct 7, 2025

leofang mentioned this pull request Oct 7, 2025
[FEA]: Tests for ltoir, fatbin, object, and library constructors #663
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