[PATCH] D110231: [AMDGPU] Add constrained shift pattern matches.

[Jay Foad via Phabricator via llvm-commits]

foad added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIInstructions.td:2516
+multiclass ConstrainedShiftPat<int width> {
+  defvar mask = !sub(width, 1);
+  defvar ty = !cast<ValueType>("i" # width);
----------------
`!sub(!shl(1, width), 1)`, surely?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110231/new/

https://reviews.llvm.org/D110231