ascendc-mssanitizer

You can run memory safety analysis on Ascend C operators to identify illegal memory accesses, illegal frees, memory leaks, and UB issues. The tool checks host, AscendCL, and device layers to generate detailed reports.

Memory safety analysis auto-detects Python mode for custom operators and GE IR/C++ mode for OPS repos. It applies mssanitizer checks across host, AscendCL, and device layers, producing structured reports and parseable logs.

Yes, you need the ASCEND toolchain with mssanitizer installed. The analysis requires torch and torch_npu dependencies to execute built-in scripts that run five memory safety checks and parse logs for custom operators.

Running the mssanitizer workflow on your Ascend C operator project is the best way to generate memory analysis reports. It supports Python-based test script generation and built-in scripts to run five checks across device and runtime scenarios.

Yes, mssanitizer memory safety analysis applies to both GE IR-based OPS repos and Python-mode custom operators. It features auto-detection of the operating mode to analyze device, runtime, and memory-safety scenarios.

Undefined behavior issues in Ascend C operators often stem from illegal memory accesses or memory leaks. Running a memory safety analysis identifies these UB issues across host and device layers, generating parseable logs to guide fixes.