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Petar Avramovic
14d56a77f5
Reland AMDGPU/GlobalISel: Combine zext(trunc x) to x after RegBankSelect
Recommit bf5a5826504754788a8f1e3fec7a7dc95cda5782. Depends on 4c8fb7ddd6fa49258e0e9427e7345fb56ba522d4 which was reverted. RegBankSelect creates zext and trunc when it selects banks for uniform i1. Add zext_trunc_fold from generic combiner to post RegBankSelect combiner. Differential Revision: https://reviews.llvm.org/D95432
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