Add patch from upstream PR for Hexagon tests
ref: https://github.com/llvm/llvm-project/pull/66785

Revert commit that makes x86_64 test fail
ref: https://github.com/llvm/llvm-project/issues/66776

Add workaround for miscompile(?) on armv 32 bit.
https://github.com/llvm/llvm-project/issues/62195