[hipblaslt] Coverage

[davidd-amd]

Motivation

Integrates coverage support from old build system in new build system. Previous coverage support required symbolic links that were a symptom of an issue of how header files are organized in the source tree, so header files were moved and include paths updated to eliminate sym links.

Another issue with coverage was that we conditionally added tests to increase lines covered when coverage is enabled. This is not the purpose of coverage builds. Coverage builds should assess lines covered by routine testing so we now (generally) build and run tests the same way for coverage and routine testing. Differences include build type and ifdef'ing out poisoned functions for coverage builds.

There are additional issues with the coverage tests that should be addressed including that the current coverage levels depend on running the samples. Coverage numbers should not depend on running examples or samples and should rely primarily on unit testing which are deficient in hipblaslt.

To ensure that anyone can generate coverage reports, ease of use presets/targets are provided:

• Configure: cmake --preset coverage -DGPU_TARGETS="<targets>" -B build -S .
• Build and run: cmake --build build --parallel --target coverage

Technical Details

• Adds custom commands and targets and a preset to support ease of use.
• Removes sym links to header files and updates include paths in impacted source files.
• Updates include paths to relevant targets.

Test Plan

Coverage builds not automated so building by hand (result included). Typical build modes tested in pipelines