tree b86ad915cd0aa97a41d000f9608857ccb0db66af
parent 0b61c186389beb44566ea01d9d3f48783ef8e7e5
author Joseph Huber <huberjn@outlook.com> 1703884479 -0600
committer Copybara-Service <copybara-worker@google.com> 1703884892 -0800

[Libomptarget] Rework image checking further (#76120)

Summary:
In the future, we may have more checks for different kinds of inputs,
e.g. SPIR-V. This patch simply reworks the handling to be more generic
and do the magic detection up-front. The checks inside the routines are
now asserts so we don't spend time checking this stuff over and over
again.

This patch also tweaked the bitcode check. I used a different function
to get the Lazy-IR module now, as it returns the raw expected value
rather than the SM diganostic.

No functionality change intended.

GitOrigin-RevId: 64f0681e97c6046912dc0d80bc56709f72045338