[llvm] [SLP][NFC] Add a new test for store chains that mix different sizes of values (PR #101979)

[via llvm-commits]

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@@ -0,0 +1,34 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -S --passes=slp-vectorizer -mtriple=x86_64-unknown-linux < %s | FileCheck %s
+
+define void @test(ptr %p) {
+; CHECK-LABEL: define void @test(
+; CHECK-SAME: ptr [[P:%.*]]) {
+; CHECK-NEXT:  [[ENTRY:.*:]]
+; CHECK-NEXT:    [[IDX1:%.*]] = getelementptr i8, ptr [[P]], i64 1
+; CHECK-NEXT:    [[IDX_64_9:%.*]] = getelementptr i64, ptr [[P]], i64 9
+; CHECK-NEXT:    store i64 1, ptr [[IDX_64_9]], align 8
+; CHECK-NEXT:    store <8 x i8> zeroinitializer, ptr [[IDX1]], align 4
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tcwzxx wrote:

The check is generated after the patch, so the correct process is to add a current version of the compiler test case (NFC) and then update this test case in the patch?

https://github.com/llvm/llvm-project/pull/101979