[llvm] [VPlan] Don't fold live ins with both scalar and vector operands (PR #154067)

[Ramkumar Ramachandra via llvm-commits]

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@@ -0,0 +1,75 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 5
+; RUN: opt -p loop-vectorize -S %s | FileCheck %s
+
+; Make sure we don't try to fold a Instruction::ExtractElement ir<0>, ir<0>,
+; since we can't materialize the live-in for the vector operand.
+
+target triple = "x86_64"
+
+define void @test(ptr %p, i1 %c, i64 %x) {
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artagnon wrote:

```suggestion
define void @pr154045(ptr %p, i1 %c, i64 %x) {
```

https://github.com/llvm/llvm-project/pull/154067