[PATCH] D137547: [AArch64][SVE] Use PTRUE instruction for get_active_lane_mask intrinsic if the range is from 0 to SVE predicator constant

[Peter Waller via Phabricator via llvm-commits]

peterwaller-arm added inline comments.


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Comment at: llvm/test/CodeGen/AArch64/active_lane_mask.ll:486
+  ret <vscale x 4 x i1> %active.lane.mask
+}
 
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Please can you add a test which shows what happens when the %n parameter of active.lane.mask goes out of the range that can be represented as a ptrue immediate. I expect this should fall back to the old codegen?


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https://reviews.llvm.org/D137547