[PATCH] D84550: [AArch64][GlobalISe] Fold G_AND and G_LSHR into ubfm

Matt Arsenault via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jul 27 11:11:30 PDT 2020


arsenm added inline comments.


================
Comment at: llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp:1681
+  //
+  // %dst = UBFM %something, immr, imms
+  //
----------------
I think we should introduce a generic code for these and combine to it. Currently at least 4 backends are reproducing all of the patterns to match it


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  https://reviews.llvm.org/D84550/new/

https://reviews.llvm.org/D84550





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