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Capture output of Vela and print on error #3057

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Capture output of Vela and print on error #3057

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9 changes: 8 additions & 1 deletion backends/arm/arm_vela.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,14 @@ def vela_compile(tosa_graph, args: List[str]):

# invoke vela
vela_command = f"cd {tmpdir}; vela {' '.join(args)} {tosaname}"
subprocess.run([vela_command], shell=True, check=True)
try:
subprocess.run([vela_command], shell=True, check=True, capture_output=True)
except subprocess.CalledProcessError as process_error:
raise RuntimeError(
f"Vela compiler ('{vela_command}') failed with error:\n \
{process_error.stderr.decode()}\n \
Stdout:\n{process_error.stdout.decode()}"
)

np_path = os.path.join(tmpdir, "output", "out_sg0_vela.npz")
blocks = b""
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