[llvm] [X86] EltsFromConsecutiveLoads - recognise reverse load patterns. (PR #168706)

[Simon Pilgrim via llvm-commits]

RKSimon wrote:

> bin/clang -fprofile-generate -fno-strict-overflow --target=x86_64-apple-macos -O2 -c foo.i 

@nico can you confirm that this all you need to run? I can't repro the hang from this - would it be possible for you to post the -emit-llvm bitcode that hangs on a llc call instead please?

https://github.com/llvm/llvm-project/pull/168706