Nikita Popov 75384ecdf8 [InstSimplify] Refactor invariant.group load folding
Currently strip.invariant/launder.invariant are handled by
constructing constant expressions with the intrinsics skipped.
This takes an alternative approach of accumulating the offset
using stripAndAccumulateConstantOffsets(), with a flag to look
through invariant.group intrinsics.

Differential Revision: https://reviews.llvm.org/D112382
2021-10-25 10:56:25 +02:00
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