[PATCH] D94501: [SelectionDAG] Support scalable-vector splats in more cases

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck added a comment.

In D94501#2566853 <https://reviews.llvm.org/D94501#2566853>, @huihuiz wrote:

> This is crashing SVE target lowering with "LLVM ERROR: Cannot select: t23: nxv4i32 = mulhu t9, t34"
> Let me know if there is a way of fixing it?

Hi @huihuiz, thanks for raising this issue with me. You've probably seen D96849 <https://reviews.llvm.org/D96849> by now.

Since I'm not familiar with AArch64 I thought the quickest and safest way to fix the issue would be to prevent these optimizations from taking place. The AArch64 team can work out if there's a way of supporting these nodes.


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https://reviews.llvm.org/D94501