[PATCH] D135852: [AArch64][4/4] Enhance bit-field-positioning op matcher to see through "any_extend" for pattern "and(any_extend(shl(val, N)), shifted-mask)"

Fri Oct 14 00:59:48 PDT 2022

dmgreen added reviewers: efriedma, t.p.northover.
dmgreen added inline comments.

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Comment at: llvm/test/CodeGen/AArch64/bitfield-insert.ll:597
+; CHECK-NEXT:    // kill: def $w0 killed $w0 killed $x0 def $x0
+; CHECK-NEXT:    ubfiz x0, x0, #7, #8
+; CHECK-NEXT:    ret
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This is nice. I've seen this come up before. https://godbolt.org/z/hhhTKex4d

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D135852/new/

https://reviews.llvm.org/D135852