Vitaly Buka a496c8be6e Revert "[CodeGen]Allow targets to use target specific COPY instructions for live range splitting" ...

And dependent commits.

Details in D150388.

This reverts commit 825b7f0ca5.
This reverts commit 7a98f084c4.
This reverts commit b4a62b1fa5.
This reverts commit b7836d8562.

No conflicts in the code, few tests had conflicts in autogenerated CHECKs:
llvm/test/CodeGen/Thumb2/mve-float32regloops.ll
llvm/test/CodeGen/AMDGPU/fix-frame-reg-in-custom-csr-spills.ll

Reviewed By: alexfh

Differential Revision: https://reviews.llvm.org/D156381

2023-07-26 22:13:32 -07:00

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