[llvm] X86: Fix VSCALE insert element crash in codegen (PR #177705)

[Aiden Grossman via llvm-commits]

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@@ -0,0 +1,11 @@
+; REQUIRES: x86-registered-target
+; RUN: opt -O2 -S < %s
+; This test triggers a crash in X86 TTI with scalable vectors
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boomanaiden154 wrote:

This can probably trigger with `-passes=print<cost-model>`?

https://github.com/llvm/llvm-project/pull/177705