compilation: honor AIECC_PATH and AIECC_JOBS env overrides#134
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Two opt-in build-ergonomics knobs on the aiecc compilation rules; both default to current behavior so nothing changes unless the env var is set. - AIECC_PATH: point the compilation rules at a locally-built aiecc (e.g. a compiler under development) instead of the one under mlir_aie_dir/bin, without having to replace the installed binary. - AIECC_JOBS: pass -j<N> to aiecc instead of the hardcoded -j1, so multi-core hosts can compile the AIE cores in parallel. Default '1' = unchanged.
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Two opt-in, backward-compatible build-ergonomics knobs on the aiecc compilation rules. Both default to the current behavior, so nothing changes unless the env var is set.
AIECC_PATH- point the compilation rules at a locally-builtaiecc(for example a compiler under active development) instead of the one undermlir_aie_dir/bin, without having to overwrite the installed binary. Default: the installedaiecc.AIECC_JOBS- pass-j<N>toaieccinstead of the hardcoded-j1, so multi-core hosts can compile the AIE cores in parallel. Default1= unchanged.Both are read via
os.environ.get(...)iniron/common/compilation/base.py(theaieccpath resolution and the twoAiecc*CompilationRulecommand builders). No new dependencies.