[compiler-rt] [llvm] [dfsan] Fix Endianess issue (PR #162881)

[via llvm-commits]

anoopkg6 wrote:

Added origin_endianness.c. This is a reduced test from existing test origin_ldst.c in dfsan testsuite.  There are several tests in origin_ldst.c for combinations of partial load/store. Reduced test in origin_endianness.c is the only test case that
fails on SystemZ. Added new test origin_endianness.c does not test anything new than existing dfsan tests. It only highlights the issue of endianness.

https://github.com/llvm/llvm-project/pull/162881