[llvm] [Local] Only intersect llvm.access.group metadata if instr moves. (PR #115868)

[Nikita Popov via llvm-commits]

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@@ -261,8 +261,8 @@ entry:
 define double @preserve_load_metadata_after_select_transform_metadata_missing_3(ptr %a, ptr %b) {
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nikic wrote:

Drop FIXME?

By the way, I think these tests would be clearer if you didn't have equal metadata on the first two loads, it's a bit unclear how exactly the preservation works that way.

https://github.com/llvm/llvm-project/pull/115868