ptoas-build-and-abs

To rebuild the PTOAS compiler, configure the build in the canonical build directory using the required LLVM installation, then compile the Abs sample with the A5 VPTO backend to emit and inspect the generated textual intermediate representation.

Compiling PTOAS and inspecting VPTO IR requires an installed LLVM/MLIR dependency, the Ninja build system, repository build scripts, and a runtime environment configured through env.sh to execute the Abs sample compilation.

The A5 VPTO backend processes the Abs sample during compilation and emits a generated intermediate representation file containing copy operations, stride and trace metadata, vector-scope attributes, and VPTO vector operations for inspection.

PTOAS build failures during Abs sample compilation can stem from build generator mismatches, linker failures, missing runtime environment setup via env.sh, or absent sample output, all of which are identified as concrete blockers during failure reporting.

Yes, the PTOAS build workflow applies to both full and CLI-only rebuilds, but it still requires the repository build scripts, an installed LLVM/MLIR dependency, Ninja, and the runtime environment configured through env.sh to successfully verify the Abs sample.

When inspecting the generated VPTO output, you should check the textual files for copy operations, stride and trace metadata, vector-scope attributes, and VPTO vector operations to verify the Abs sample compiled correctly with the A5 backend.