llvm/test/Transforms/LoopVectorize/as_cast.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 6
; RUN: opt -passes=loop-vectorize %s -force-vector-width=1 -force-vector-interleave=2 -S -o - | FileCheck %s

define void @loop_invariant_as_cast(ptr addrspace(1) %in) {
; CHECK-LABEL: define void @loop_invariant_as_cast(
; CHECK-SAME: ptr addrspace(1) [[IN:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE2:.*]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 1
; CHECK-NEXT:    [[TMP1:%.*]] = icmp ule i64 [[INDEX]], 6
; CHECK-NEXT:    [[TMP2:%.*]] = icmp ule i64 [[TMP0]], 6
; CHECK-NEXT:    br i1 [[TMP1]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
; CHECK:       [[PRED_STORE_IF]]:
; CHECK-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 1
; CHECK-NEXT:    [[TMP4:%.*]] = addrspacecast ptr addrspace(1) [[IN]] to ptr
; CHECK-NEXT:    [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP4]], i64 [[TMP3]]
; CHECK-NEXT:    store i64 [[TMP3]], ptr [[TMP5]], align 4
; CHECK-NEXT:    br label %[[PRED_STORE_CONTINUE]]
; CHECK:       [[PRED_STORE_CONTINUE]]:
; CHECK-NEXT:    br i1 [[TMP2]], label %[[PRED_STORE_IF1:.*]], label %[[PRED_STORE_CONTINUE2]]
; CHECK:       [[PRED_STORE_IF1]]:
; CHECK-NEXT:    [[TMP6:%.*]] = add i64 [[TMP0]], 1
; CHECK-NEXT:    [[TMP7:%.*]] = addrspacecast ptr addrspace(1) [[IN]] to ptr
; CHECK-NEXT:    [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[TMP7]], i64 [[TMP6]]
; CHECK-NEXT:    store i64 [[TMP6]], ptr [[TMP8]], align 4
; CHECK-NEXT:    br label %[[PRED_STORE_CONTINUE2]]
; CHECK:       [[PRED_STORE_CONTINUE2]]:
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 8
; CHECK-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop

loop:
  %iv = phi i64 [ %iv.next, %loop ], [ 0, %entry ]
  %ascast = addrspacecast ptr addrspace(1) %in to ptr
  %iv.next = add i64 %iv, 1
  %gep = getelementptr inbounds i64, ptr %ascast, i64 %iv.next
  store i64 %iv.next, ptr %gep, align 4
  %cmp = icmp eq i64 %iv.next, 7
  br i1 %cmp, label %exit, label %loop

exit:
  ret void
}

define void @loop_varying_as_cast(ptr addrspace(1) %in) {
; CHECK-LABEL: define void @loop_varying_as_cast(
; CHECK-SAME: ptr addrspace(1) [[IN:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE2:.*]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = add i64 [[INDEX]], 1
; CHECK-NEXT:    [[TMP1:%.*]] = icmp ule i64 [[INDEX]], 6
; CHECK-NEXT:    [[TMP2:%.*]] = icmp ule i64 [[TMP0]], 6
; CHECK-NEXT:    br i1 [[TMP1]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
; CHECK:       [[PRED_STORE_IF]]:
; CHECK-NEXT:    [[TMP3:%.*]] = add i64 [[INDEX]], 1
; CHECK-NEXT:    [[TMP4:%.*]] = getelementptr inbounds i64, ptr addrspace(1) [[IN]], i64 [[TMP3]]
; CHECK-NEXT:    [[TMP5:%.*]] = addrspacecast ptr addrspace(1) [[TMP4]] to ptr
; CHECK-NEXT:    store i64 [[TMP3]], ptr [[TMP5]], align 4
; CHECK-NEXT:    br label %[[PRED_STORE_CONTINUE]]
; CHECK:       [[PRED_STORE_CONTINUE]]:
; CHECK-NEXT:    br i1 [[TMP2]], label %[[PRED_STORE_IF1:.*]], label %[[PRED_STORE_CONTINUE2]]
; CHECK:       [[PRED_STORE_IF1]]:
; CHECK-NEXT:    [[TMP6:%.*]] = add i64 [[TMP0]], 1
; CHECK-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i64, ptr addrspace(1) [[IN]], i64 [[TMP6]]
; CHECK-NEXT:    [[TMP8:%.*]] = addrspacecast ptr addrspace(1) [[TMP7]] to ptr
; CHECK-NEXT:    store i64 [[TMP6]], ptr [[TMP8]], align 4
; CHECK-NEXT:    br label %[[PRED_STORE_CONTINUE2]]
; CHECK:       [[PRED_STORE_CONTINUE2]]:
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 8
; CHECK-NEXT:    br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop

loop:
  %iv = phi i64 [ %iv.next, %loop ], [ 0, %entry ]
  %iv.next = add i64 %iv, 1
  %gep = getelementptr inbounds i64, ptr addrspace(1) %in, i64 %iv.next
  %ascast = addrspacecast ptr addrspace(1) %gep to ptr
  store i64 %iv.next, ptr %ascast, align 4
  %cmp = icmp eq i64 %iv.next, 7
  br i1 %cmp, label %exit, label %loop

exit:
  ret void
}