[llvm] [X86] Enforce strict pre-legalization to combine in scalarizeExtEltFP (PR #117681)

[Simon Pilgrim via llvm-commits]

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@@ -0,0 +1,38 @@
+; RUN: llc < %s | FileCheck %s
+
+define void @extvselectsetcc_illegal(i1 %cond, <8 x float> %vec, ptr %ptr1, ptr %ptr2) #0 {
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RKSimon wrote:

Rename this PR117684 - it helps with bug archaeology without having to trawl git logs 

https://github.com/llvm/llvm-project/pull/117681