bpf/tests: Add tests to check source register zero-extension

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This patch adds tests to check that the source register is preserved when
zero-extending a 32-bit value. In particular, it checks that the source
operand is not zero-extended in-place.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211001130348.3670534-5-johan.almbladh@anyfinetworks.com

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Johan Almbladh 2021-10-01 15:03:42 +02:00 • committed by Daniel Borkmann

parent f68e8efd7f

commit 0bbaa02b48

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lib/test_bpf.c

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