--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S %s | FileCheck %s
+
+define i32 @can_sink_load_that_uses_for_past_other_loads(ptr noalias %A, ptr noalias %B) {
+; CHECK-LABEL: @can_sink_load_that_uses_for_past_other_loads(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: loop:
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT: [[FOR:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[FOR_NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT: [[RED:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[RED_NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT: [[GEP_A:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i32 [[FOR]]
+; CHECK-NEXT: [[L_A:%.*]] = load i32, ptr [[GEP_A]], align 4
+; CHECK-NEXT: [[GEP_B:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i32 [[IV]]
+; CHECK-NEXT: [[FOR_NEXT]] = load i32, ptr [[GEP_B]], align 4
+; CHECK-NEXT: [[ADD:%.*]] = add i32 [[FOR]], [[L_A]]
+; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[ADD]]
+; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
+; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 1000
+; CHECK-NEXT: br i1 [[EC]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK: exit:
+; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], [[LOOP]] ]
+; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
+;
+entry:
+ br label %loop
+
+loop:
+ %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+ %for = phi i32 [ 0, %entry ], [ %for.next, %loop ]
+ %red = phi i32 [ 0, %entry ], [ %red.next, %loop ]
+ %gep.a = getelementptr inbounds i32, ptr %A, i32 %for
+ %l.a = load i32, ptr %gep.a
+ %gep.b = getelementptr inbounds i32, ptr %B, i32 %iv
+ %for.next = load i32, ptr %gep.b
+ %add = add i32 %for, %l.a
+ %red.next = add i32 %red, %add
+ %iv.next = add nuw nsw i32 %iv, 1
+ %ec = icmp eq i32 %iv.next, 1000
+ br i1 %ec, label %exit, label %loop
+
+exit:
+ ret i32 %red.next
+}
+
+define void @cannot_sink_load_past_mayalias_store(ptr noalias %A, ptr noalias %B) {
+; CHECK-LABEL: @cannot_sink_load_past_mayalias_store(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br label [[LOOP:%.*]]
+; CHECK: loop:
+; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT: [[FOR:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[FOR_NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT: [[GEP_A:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i32 [[FOR]]
+; CHECK-NEXT: [[L_A:%.*]] = load i32, ptr [[GEP_A]], align 4
+; CHECK-NEXT: [[GEP_A_2:%.*]] = getelementptr inbounds i32, ptr [[A]], i32 [[IV]]
+; CHECK-NEXT: [[ADD:%.*]] = add i32 [[FOR]], [[L_A]]
+; CHECK-NEXT: store i32 [[ADD]], ptr [[GEP_A_2]], align 4
+; CHECK-NEXT: [[FOR_NEXT]] = load i32, ptr [[GEP_A_2]], align 4
+; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
+; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 1000
+; CHECK-NEXT: br i1 [[EC]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK: exit:
+; CHECK-NEXT: ret void
+;
+entry:
+ br label %loop
+
+loop:
+ %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+ %for = phi i32 [ 0, %entry ], [ %for.next, %loop ]
+ %gep.a = getelementptr inbounds i32, ptr %A, i32 %for
+ %l.a = load i32, ptr %gep.a
+ %gep.a.2 = getelementptr inbounds i32, ptr %A, i32 %iv
+ %add = add i32 %for, %l.a
+ store i32 %add, ptr %gep.a.2
+ %for.next = load i32, ptr %gep.a.2
+ %iv.next = add nuw nsw i32 %iv, 1
+ %ec = icmp eq i32 %iv.next, 1000
+ br i1 %ec, label %exit, label %loop
+
+exit:
+ ret void
+}