[PATCH] D86611: GlobalISel: Combine `op undef, x` to 0

[Volkan Keles via Phabricator via llvm-commits]

volkan added inline comments.


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Comment at: llvm/test/CodeGen/AArch64/GlobalISel/combine-shl.mir:4
+---
+name:            test_combine_shl_undef_x_s32
+body:             |
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paquette wrote:
> A testcase where the G_IMPLICIT_DEF has more than one use would be good?
Another user wouldn't have any impact on this case. Could you explain why that would be good?


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  https://reviews.llvm.org/D86611/new/

https://reviews.llvm.org/D86611