[SLP][NFC]Add a test with comparison for different sized integer types, NFC.

Author: alexey-bataev

llvm/test/Transforms/SLPVectorizer/X86/cmp-diff-sized.ll

@@ -0,0 +1,35 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -passes=slp-vectorizer -S -mtriple=x86_64--- | FileCheck %s
+
+define void @test(ptr noalias %a, ptr %b) {
+; CHECK-LABEL: @test(
+; CHECK-NEXT:    [[PA1:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i32 64
+; CHECK-NEXT:    [[PA2:%.*]] = getelementptr inbounds i32, ptr [[A]], i32 1
+; CHECK-NEXT:    [[A0:%.*]] = load i32, ptr [[A]], align 4
+; CHECK-NEXT:    [[A1:%.*]] = load i64, ptr [[PA1]], align 8
+; CHECK-NEXT:    [[A2:%.*]] = load i32, ptr [[PA2]], align 4
+; CHECK-NEXT:    [[PB1:%.*]] = getelementptr inbounds i64, ptr [[B:%.*]], i32 64
+; CHECK-NEXT:    [[PB2:%.*]] = getelementptr inbounds i32, ptr [[B]], i32 1
+; CHECK-NEXT:    [[B0:%.*]] = load i32, ptr [[B]], align 4
+; CHECK-NEXT:    [[B1:%.*]] = load i64, ptr [[PB1]], align 8
+; CHECK-NEXT:    [[B2:%.*]] = load i32, ptr [[PB2]], align 4
+; CHECK-NEXT:    [[C0:%.*]] = icmp eq i32 [[A0]], [[B0]]
+; CHECK-NEXT:    [[C1:%.*]] = icmp eq i64 [[B1]], [[A1]]
+; CHECK-NEXT:    [[C2:%.*]] = icmp eq i32 [[B2]], [[A2]]
+; CHECK-NEXT:    ret void
+;
+  %pa1 = getelementptr inbounds i64, ptr %a, i32 64
+  %pa2 = getelementptr inbounds i32, ptr %a, i32 1
+  %a0 = load i32, ptr %a, align 4
+  %a1 = load i64, ptr %pa1, align 8
+  %a2 = load i32, ptr %pa2, align 4
+  %pb1 = getelementptr inbounds i64, ptr %b, i32 64
+  %pb2 = getelementptr inbounds i32, ptr %b, i32 1
+  %b0 = load i32, ptr %b, align 4
+  %b1 = load i64, ptr %pb1, align 8
+  %b2 = load i32, ptr %pb2, align 4
+  %c0 = icmp eq i32 %a0, %b0
+  %c1 = icmp eq i64 %b1, %a1
+  %c2 = icmp eq i32 %b2, %a2
+  ret void
+}