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llvm/llvm/test/Transforms/ConstraintElimination/gep-chains.ll 

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s

declare void @llvm.assume(i1 noundef) #0

define i1 @gep_add_1_uge_inbounds(ptr %dst, ptr %lower) {
; CHECK-LABEL: @gep_add_1_uge_inbounds(
; CHECK-NEXT:    [[PRE:%.*]] = icmp uge ptr [[DST:%.*]], [[LOWER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_3:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 3
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 1
; CHECK-NEXT:    [[DST_ADD_2:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_1]], i64 1
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 true, true
; CHECK-NEXT:    [[DST_ADD_4:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_3]], i64 3
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], true
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %pre = icmp uge ptr %dst, %lower
  call void @llvm.assume(i1 %pre)
  %dst.add.3 = getelementptr inbounds i8, ptr %dst, i64 3
  %dst.add.1 = getelementptr inbounds i8, ptr %dst, i64 1
  %cmp.add.1 = icmp uge ptr %dst.add.1, %lower
  %dst.add.2 = getelementptr inbounds i8, ptr %dst.add.1, i64 1
  %cmp.add.3 = icmp uge ptr %dst.add.3, %lower
  %res.1 = xor i1 %cmp.add.1, %cmp.add.3
  %dst.add.4 = getelementptr inbounds i8, ptr %dst.add.3, i64 3
  %cmp.add.4 = icmp uge ptr %dst.add.4, %lower
  %res.2 = xor i1 %res.1, %cmp.add.4
  ret i1 %res.2
}

define i1 @gep_add_1_uge_inbounds_scalable_vector(ptr %dst, ptr %lower) {
; CHECK-LABEL: @gep_add_1_uge_inbounds_scalable_vector(
; CHECK-NEXT:    [[PRE:%.*]] = icmp uge ptr [[DST:%.*]], [[LOWER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_3:%.*]] = getelementptr inbounds <vscale x 4 x i8>, ptr [[DST]], i64 3
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds <vscale x 4 x i8>, ptr [[DST]], i64 1
; CHECK-NEXT:    [[CMP_ADD_1:%.*]] = icmp uge ptr [[DST_ADD_1]], [[LOWER]]
; CHECK-NEXT:    [[DST_ADD_2:%.*]] = getelementptr inbounds <vscale x 4 x i8>, ptr [[DST_ADD_1]], i64 1
; CHECK-NEXT:    [[CMP_ADD_3:%.*]] = icmp uge ptr [[DST_ADD_3]], [[LOWER]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[CMP_ADD_1]], [[CMP_ADD_3]]
; CHECK-NEXT:    [[DST_ADD_4:%.*]] = getelementptr inbounds <vscale x 4 x i8>, ptr [[DST_ADD_3]], i64 3
; CHECK-NEXT:    [[CMP_ADD_4:%.*]] = icmp uge ptr [[DST_ADD_4]], [[LOWER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_ADD_4]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %pre = icmp uge ptr %dst, %lower
  call void @llvm.assume(i1 %pre)
  %dst.add.3 = getelementptr inbounds <vscale x 4 x i8>, ptr %dst, i64 3
  %dst.add.1 = getelementptr inbounds <vscale x 4 x i8>, ptr %dst, i64 1
  %cmp.add.1 = icmp uge ptr %dst.add.1, %lower
  %dst.add.2 = getelementptr inbounds <vscale x 4 x i8>, ptr %dst.add.1, i64 1
  %cmp.add.3 = icmp uge ptr %dst.add.3, %lower
  %res.1 = xor i1 %cmp.add.1, %cmp.add.3
  %dst.add.4 = getelementptr inbounds <vscale x 4 x i8>, ptr %dst.add.3, i64 3
  %cmp.add.4 = icmp uge ptr %dst.add.4, %lower
  %res.2 = xor i1 %res.1, %cmp.add.4
  ret i1 %res.2
}

define i1 @gep_add_1_uge_only_inner_inbounds(ptr %dst, ptr %lower) {
; CHECK-LABEL: @gep_add_1_uge_only_inner_inbounds(
; CHECK-NEXT:    [[PRE:%.*]] = icmp uge ptr [[DST:%.*]], [[LOWER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_3:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 3
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 1
; CHECK-NEXT:    [[DST_ADD_2:%.*]] = getelementptr i8, ptr [[DST_ADD_1]], i64 1
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 true, true
; CHECK-NEXT:    [[DST_ADD_4:%.*]] = getelementptr i8, ptr [[DST_ADD_3]], i64 3
; CHECK-NEXT:    [[CMP_ADD_4:%.*]] = icmp uge ptr [[DST_ADD_4]], [[LOWER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_ADD_4]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %pre = icmp uge ptr %dst, %lower
  call void @llvm.assume(i1 %pre)
  %dst.add.3 = getelementptr inbounds i8, ptr %dst, i64 3
  %dst.add.1 = getelementptr inbounds i8, ptr %dst, i64 1
  %cmp.add.1 = icmp uge ptr %dst.add.1, %lower
  %dst.add.2 = getelementptr i8, ptr %dst.add.1, i64 1
  %cmp.add.3 = icmp uge ptr %dst.add.3, %lower
  %res.1 = xor i1 %cmp.add.1, %cmp.add.3
  %dst.add.4 = getelementptr i8, ptr %dst.add.3, i64 3
  %cmp.add.4 = icmp uge ptr %dst.add.4, %lower
  %res.2 = xor i1 %res.1, %cmp.add.4
  ret i1 %res.2
}

define i1 @gep_add_1_uge_only_outer_inbounds(ptr %dst, ptr %lower) {
; CHECK-LABEL: @gep_add_1_uge_only_outer_inbounds(
; CHECK-NEXT:    [[PRE:%.*]] = icmp uge ptr [[DST:%.*]], [[LOWER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_3:%.*]] = getelementptr i8, ptr [[DST]], i64 3
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr i8, ptr [[DST]], i64 1
; CHECK-NEXT:    [[CMP_ADD_1:%.*]] = icmp uge ptr [[DST_ADD_1]], [[LOWER]]
; CHECK-NEXT:    [[DST_ADD_2:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_1]], i64 1
; CHECK-NEXT:    [[CMP_ADD_3:%.*]] = icmp uge ptr [[DST_ADD_3]], [[LOWER]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[CMP_ADD_1]], [[CMP_ADD_3]]
; CHECK-NEXT:    [[DST_ADD_4:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_3]], i64 3
; CHECK-NEXT:    [[CMP_ADD_4:%.*]] = icmp uge ptr [[DST_ADD_4]], [[LOWER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_ADD_4]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %pre = icmp uge ptr %dst, %lower
  call void @llvm.assume(i1 %pre)
  %dst.add.3 = getelementptr i8, ptr %dst, i64 3
  %dst.add.1 = getelementptr i8, ptr %dst, i64 1
  %cmp.add.1 = icmp uge ptr %dst.add.1, %lower
  %dst.add.2 = getelementptr inbounds i8, ptr %dst.add.1, i64 1
  %cmp.add.3 = icmp uge ptr %dst.add.3, %lower
  %res.1 = xor i1 %cmp.add.1, %cmp.add.3
  %dst.add.4 = getelementptr inbounds i8, ptr %dst.add.3, i64 3
  %cmp.add.4 = icmp uge ptr %dst.add.4, %lower
  %res.2 = xor i1 %res.1, %cmp.add.4
  ret i1 %res.2
}

define i1 @gep_add_1_uge_no_inbounds(ptr %dst, ptr %lower) {
; CHECK-LABEL: @gep_add_1_uge_no_inbounds(
; CHECK-NEXT:    [[PRE:%.*]] = icmp uge ptr [[DST:%.*]], [[LOWER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_3:%.*]] = getelementptr i8, ptr [[DST]], i64 3
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr i8, ptr [[DST]], i64 1
; CHECK-NEXT:    [[CMP_ADD_1:%.*]] = icmp uge ptr [[DST_ADD_1]], [[LOWER]]
; CHECK-NEXT:    [[DST_ADD_2:%.*]] = getelementptr i8, ptr [[DST_ADD_1]], i64 1
; CHECK-NEXT:    [[CMP_ADD_3:%.*]] = icmp uge ptr [[DST_ADD_3]], [[LOWER]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[CMP_ADD_1]], [[CMP_ADD_3]]
; CHECK-NEXT:    [[DST_ADD_4:%.*]] = getelementptr i8, ptr [[DST_ADD_3]], i64 3
; CHECK-NEXT:    [[CMP_ADD_4:%.*]] = icmp uge ptr [[DST_ADD_4]], [[LOWER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_ADD_4]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %pre = icmp uge ptr %dst, %lower
  call void @llvm.assume(i1 %pre)
  %dst.add.3 = getelementptr i8, ptr %dst, i64 3
  %dst.add.1 = getelementptr i8, ptr %dst, i64 1
  %cmp.add.1 = icmp uge ptr %dst.add.1, %lower
  %dst.add.2 = getelementptr i8, ptr %dst.add.1, i64 1
  %cmp.add.3 = icmp uge ptr %dst.add.3, %lower
  %res.1 = xor i1 %cmp.add.1, %cmp.add.3
  %dst.add.4 = getelementptr i8, ptr %dst.add.3, i64 3
  %cmp.add.4 = icmp uge ptr %dst.add.4, %lower
  %res.2 = xor i1 %res.1, %cmp.add.4
  ret i1 %res.2
}

define i1 @gep_add_1_ult(ptr %dst, ptr %lower, ptr %upper) {
; CHECK-LABEL: @gep_add_1_ult(
; CHECK-NEXT:    [[END:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i64 4
; CHECK-NEXT:    [[PRE:%.*]] = icmp ult ptr [[END]], [[UPPER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds i8, ptr [[DST]], i64 1
; CHECK-NEXT:    [[DST_ADD_3:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_1]], i64 2
; CHECK-NEXT:    [[DST_ADD_4:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_1]], i64 3
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 true, true
; CHECK-NEXT:    [[DST_ADD_5:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_1]], i64 4
; CHECK-NEXT:    [[CMP_ADD_5:%.*]] = icmp ult ptr [[DST_ADD_5]], [[UPPER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_ADD_5]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %end = getelementptr inbounds i8, ptr %dst, i64 4
  %pre = icmp ult ptr %end, %upper
  call void @llvm.assume(i1 %pre)
  %dst.add.1 = getelementptr inbounds i8, ptr %dst, i64 1
  %dst.add.3 = getelementptr inbounds i8, ptr %dst.add.1, i64 2
  %cmp.add.3 = icmp ult ptr %dst.add.3, %upper
  %dst.add.4 = getelementptr inbounds i8, ptr %dst.add.1, i64 3
  %cmp.add.4 = icmp ult ptr %dst.add.4, %upper
  %res.1 = xor i1 %cmp.add.3, %cmp.add.4
  %dst.add.5 = getelementptr inbounds i8, ptr %dst.add.1, i64 4
  %cmp.add.5 = icmp ult ptr %dst.add.5, %upper
  %res.2 = xor i1 %res.1, %cmp.add.5
  ret i1 %res.2
}

define i1 @gep_add_ult_var_idx(ptr %dst, ptr %upper, i8 %idx) {
; CHECK-LABEL: @gep_add_ult_var_idx(
; CHECK-NEXT:    [[NOT_ZERO:%.*]] = icmp ne i8 [[IDX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NOT_ZERO]])
; CHECK-NEXT:    [[IDX_EXT:%.*]] = zext i8 [[IDX]] to i16
; CHECK-NEXT:    [[DST_ADD_IDX:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i16 [[IDX_EXT]]
; CHECK-NEXT:    [[PRE:%.*]] = icmp ult ptr [[DST_ADD_IDX]], [[UPPER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_IDX]], i64 1
; CHECK-NEXT:    [[DST_ADD_2:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_IDX]], i64 2
; CHECK-NEXT:    [[CMP_ADD_2:%.*]] = icmp ule ptr [[DST_ADD_2]], [[UPPER]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 true, [[CMP_ADD_2]]
; CHECK-NEXT:    ret i1 [[RES_1]]
;
  %not.zero = icmp ne i8 %idx, 0
  call void @llvm.assume(i1 %not.zero)
  %idx.ext = zext i8 %idx to i16
  %dst.add.idx = getelementptr inbounds i8, ptr %dst, i16 %idx.ext
  %pre = icmp ult ptr %dst.add.idx, %upper
  call void @llvm.assume(i1 %pre)
  %dst.add.1 = getelementptr inbounds i8, ptr %dst.add.idx, i64 1
  %cmp.add.1 = icmp ule ptr %dst.add.1, %upper
  %dst.add.2 = getelementptr inbounds i8, ptr %dst.add.idx, i64 2
  %cmp.add.2 = icmp ule ptr %dst.add.2, %upper
  %res.1 = xor i1 %cmp.add.1, %cmp.add.2
  ret i1 %res.1
}

define i1 @gep_add_ult_var_idx_sgt_1(ptr %dst, ptr %upper, i8 %idx) {
; CHECK-LABEL: @gep_add_ult_var_idx_sgt_1(
; CHECK-NEXT:    [[SGT_1:%.*]] = icmp sgt i8 [[IDX:%.*]], 1
; CHECK-NEXT:    call void @llvm.assume(i1 [[SGT_1]])
; CHECK-NEXT:    [[IDX_EXT:%.*]] = zext i8 [[IDX]] to i16
; CHECK-NEXT:    [[DST_ADD_IDX:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i16 [[IDX_EXT]]
; CHECK-NEXT:    [[PRE:%.*]] = icmp ult ptr [[DST_ADD_IDX]], [[UPPER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRE]])
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_IDX]], i64 1
; CHECK-NEXT:    [[DST_ADD_2:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_IDX]], i64 2
; CHECK-NEXT:    [[CMP_ADD_2:%.*]] = icmp ule ptr [[DST_ADD_2]], [[UPPER]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 true, [[CMP_ADD_2]]
; CHECK-NEXT:    ret i1 [[RES_1]]
;
  %sgt.1 = icmp sgt i8 %idx, 1
  call void @llvm.assume(i1 %sgt.1)
  %idx.ext = zext i8 %idx to i16
  %dst.add.idx = getelementptr inbounds i8, ptr %dst, i16 %idx.ext
  %pre = icmp ult ptr %dst.add.idx, %upper
  call void @llvm.assume(i1 %pre)
  %dst.add.1 = getelementptr inbounds i8, ptr %dst.add.idx, i64 1
  %cmp.add.1 = icmp ule ptr %dst.add.1, %upper
  %dst.add.2 = getelementptr inbounds i8, ptr %dst.add.idx, i64 2
  %cmp.add.2 = icmp ule ptr %dst.add.2, %upper
  %res.1 = xor i1 %cmp.add.1, %cmp.add.2
  ret i1 %res.1
}

define i1 @gep_add_1_ult_var_idx_inbounds(ptr %dst, ptr %upper, i8 %len, i8 %idx) {
; CHECK-LABEL: @gep_add_1_ult_var_idx_inbounds(
; CHECK-NEXT:    [[NOT_ZERO:%.*]] = icmp ne i8 [[LEN:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NOT_ZERO]])
; CHECK-NEXT:    [[LEN_EXT:%.*]] = zext i8 [[LEN]] to i16
; CHECK-NEXT:    [[DST_ADD_LEN:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i16 [[LEN_EXT]]
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_LEN]], i64 1
; CHECK-NEXT:    [[CMP_ADD_1:%.*]] = icmp ult ptr [[DST_ADD_1]], [[UPPER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[CMP_ADD_1]])
; CHECK-NEXT:    [[CMP_IDX_ULT_LEN:%.*]] = icmp ult i8 [[IDX:%.*]], [[LEN]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[CMP_IDX_ULT_LEN]])
; CHECK-NEXT:    [[IDX_EXT:%.*]] = zext i8 [[IDX]] to i16
; CHECK-NEXT:    [[DST_ADD_IDX:%.*]] = getelementptr inbounds i8, ptr [[DST]], i16 [[IDX_EXT]]
; CHECK-NEXT:    [[DST_ADD_IDX_1:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_IDX]], i64 1
; CHECK-NEXT:    [[DST_ADD_IDX_2:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_IDX]], i64 2
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 true, true
; CHECK-NEXT:    [[DST_ADD_IDX_3:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_IDX]], i64 3
; CHECK-NEXT:    [[CMP_IDX_3:%.*]] = icmp ult ptr [[DST_ADD_IDX_3]], [[UPPER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_IDX_3]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %not.zero = icmp ne i8 %len, 0
  call void @llvm.assume(i1 %not.zero)
  %len.ext = zext i8 %len to i16
  %dst.add.len = getelementptr inbounds i8, ptr %dst, i16 %len.ext
  %dst.add.1 = getelementptr inbounds i8, ptr %dst.add.len, i64 1
  %cmp.add.1 = icmp ult ptr %dst.add.1, %upper
  call void @llvm.assume(i1 %cmp.add.1)
  %cmp.idx.ult.len = icmp ult i8 %idx, %len
  call void @llvm.assume(i1 %cmp.idx.ult.len)
  %idx.ext = zext i8 %idx to i16
  %dst.add.idx = getelementptr inbounds i8, ptr %dst, i16 %idx.ext
  %dst.add.idx.1 = getelementptr inbounds i8, ptr %dst.add.idx, i64 1
  %cmp.idx.1 = icmp ult ptr %dst.add.idx.1, %upper
  %dst.add.idx.2 = getelementptr inbounds i8, ptr %dst.add.idx, i64 2
  %cmp.idx.2 = icmp ult ptr %dst.add.idx.2, %upper
  %res.1 = xor i1 %cmp.idx.1, %cmp.idx.2
  %dst.add.idx.3 = getelementptr inbounds i8, ptr %dst.add.idx, i64 3
  %cmp.idx.3 = icmp ult ptr %dst.add.idx.3, %upper
  %res.2 = xor i1 %res.1, %cmp.idx.3
  ret i1 %res.2
}

define i1 @gep_add_1_ult_var_idx_only_inner_inbounds(ptr %dst, ptr %upper, i8 %len, i8 %idx) {
; CHECK-LABEL: @gep_add_1_ult_var_idx_only_inner_inbounds(
; CHECK-NEXT:    [[NOT_ZERO:%.*]] = icmp ne i8 [[LEN:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NOT_ZERO]])
; CHECK-NEXT:    [[LEN_EXT:%.*]] = zext i8 [[LEN]] to i16
; CHECK-NEXT:    [[DST_ADD_LEN:%.*]] = getelementptr inbounds i8, ptr [[DST:%.*]], i16 [[LEN_EXT]]
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr inbounds i8, ptr [[DST_ADD_LEN]], i64 1
; CHECK-NEXT:    [[CMP_ADD_1:%.*]] = icmp ult ptr [[DST_ADD_1]], [[UPPER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[CMP_ADD_1]])
; CHECK-NEXT:    [[CMP_IDX_ULT_LEN:%.*]] = icmp ult i8 [[IDX:%.*]], [[LEN]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[CMP_IDX_ULT_LEN]])
; CHECK-NEXT:    [[IDX_EXT:%.*]] = zext i8 [[IDX]] to i16
; CHECK-NEXT:    [[DST_ADD_IDX:%.*]] = getelementptr inbounds i8, ptr [[DST]], i16 [[IDX_EXT]]
; CHECK-NEXT:    [[DST_ADD_IDX_1:%.*]] = getelementptr i8, ptr [[DST_ADD_IDX]], i64 1
; CHECK-NEXT:    [[CMP_IDX_1:%.*]] = icmp ult ptr [[DST_ADD_IDX_1]], [[UPPER]]
; CHECK-NEXT:    [[DST_ADD_IDX_2:%.*]] = getelementptr i8, ptr [[DST_ADD_IDX]], i64 2
; CHECK-NEXT:    [[CMP_IDX_2:%.*]] = icmp ult ptr [[DST_ADD_IDX_2]], [[UPPER]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[CMP_IDX_1]], [[CMP_IDX_2]]
; CHECK-NEXT:    [[DST_ADD_IDX_3:%.*]] = getelementptr i8, ptr [[DST_ADD_IDX]], i64 3
; CHECK-NEXT:    [[CMP_IDX_3:%.*]] = icmp ult ptr [[DST_ADD_IDX_3]], [[UPPER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_IDX_3]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %not.zero = icmp ne i8 %len, 0
  call void @llvm.assume(i1 %not.zero)
  %len.ext = zext i8 %len to i16
  %dst.add.len = getelementptr inbounds i8, ptr %dst, i16 %len.ext
  %dst.add.1 = getelementptr inbounds i8, ptr %dst.add.len, i64 1
  %cmp.add.1 = icmp ult ptr %dst.add.1, %upper
  call void @llvm.assume(i1 %cmp.add.1)
  %cmp.idx.ult.len = icmp ult i8 %idx, %len
  call void @llvm.assume(i1 %cmp.idx.ult.len)
  %idx.ext = zext i8 %idx to i16
  %dst.add.idx = getelementptr inbounds i8, ptr %dst, i16 %idx.ext
  %dst.add.idx.1 = getelementptr i8, ptr %dst.add.idx, i64 1
  %cmp.idx.1 = icmp ult ptr %dst.add.idx.1, %upper
  %dst.add.idx.2 = getelementptr i8, ptr %dst.add.idx, i64 2
  %cmp.idx.2 = icmp ult ptr %dst.add.idx.2, %upper
  %res.1 = xor i1 %cmp.idx.1, %cmp.idx.2
  %dst.add.idx.3 = getelementptr i8, ptr %dst.add.idx, i64 3
  %cmp.idx.3 = icmp ult ptr %dst.add.idx.3, %upper
  %res.2 = xor i1 %res.1, %cmp.idx.3
  ret i1 %res.2
}

define i1 @gep_add_1_ult_var_idx_no_inbounds(ptr %dst, ptr %upper, i8 %len, i8 %idx) {
; CHECK-LABEL: @gep_add_1_ult_var_idx_no_inbounds(
; CHECK-NEXT:    [[NOT_ZERO:%.*]] = icmp ne i8 [[LEN:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NOT_ZERO]])
; CHECK-NEXT:    [[LEN_EXT:%.*]] = zext i8 [[LEN]] to i16
; CHECK-NEXT:    [[DST_ADD_LEN:%.*]] = getelementptr i8, ptr [[DST:%.*]], i16 [[LEN_EXT]]
; CHECK-NEXT:    [[DST_ADD_1:%.*]] = getelementptr i8, ptr [[DST_ADD_LEN]], i64 1
; CHECK-NEXT:    [[CMP_ADD_1:%.*]] = icmp ult ptr [[DST_ADD_1]], [[UPPER:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[CMP_ADD_1]])
; CHECK-NEXT:    [[CMP_IDX_ULT_LEN:%.*]] = icmp ult i8 [[IDX:%.*]], [[LEN]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[CMP_IDX_ULT_LEN]])
; CHECK-NEXT:    [[IDX_EXT:%.*]] = zext i8 [[IDX]] to i16
; CHECK-NEXT:    [[DST_ADD_IDX:%.*]] = getelementptr i8, ptr [[DST]], i16 [[IDX_EXT]]
; CHECK-NEXT:    [[DST_ADD_IDX_1:%.*]] = getelementptr i8, ptr [[DST_ADD_IDX]], i64 1
; CHECK-NEXT:    [[CMP_IDX_1:%.*]] = icmp ult ptr [[DST_ADD_IDX_1]], [[UPPER]]
; CHECK-NEXT:    [[DST_ADD_IDX_2:%.*]] = getelementptr i8, ptr [[DST_ADD_IDX]], i64 2
; CHECK-NEXT:    [[CMP_IDX_2:%.*]] = icmp ult ptr [[DST_ADD_IDX_2]], [[UPPER]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[CMP_IDX_1]], [[CMP_IDX_2]]
; CHECK-NEXT:    [[DST_ADD_IDX_3:%.*]] = getelementptr i8, ptr [[DST_ADD_IDX]], i64 3
; CHECK-NEXT:    [[CMP_IDX_3:%.*]] = icmp ult ptr [[DST_ADD_IDX_3]], [[UPPER]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[CMP_IDX_3]]
; CHECK-NEXT:    ret i1 [[RES_2]]
;
  %not.zero = icmp ne i8 %len, 0
  call void @llvm.assume(i1 %not.zero)
  %len.ext = zext i8 %len to i16
  %dst.add.len = getelementptr i8, ptr %dst, i16 %len.ext
  %dst.add.1 = getelementptr i8, ptr %dst.add.len, i64 1
  %cmp.add.1 = icmp ult ptr %dst.add.1, %upper
  call void @llvm.assume(i1 %cmp.add.1)
  %cmp.idx.ult.len = icmp ult i8 %idx, %len
  call void @llvm.assume(i1 %cmp.idx.ult.len)
  %idx.ext = zext i8 %idx to i16
  %dst.add.idx = getelementptr i8, ptr %dst, i16 %idx.ext
  %dst.add.idx.1 = getelementptr i8, ptr %dst.add.idx, i64 1
  %cmp.idx.1 = icmp ult ptr %dst.add.idx.1, %upper
  %dst.add.idx.2 = getelementptr i8, ptr %dst.add.idx, i64 2
  %cmp.idx.2 = icmp ult ptr %dst.add.idx.2, %upper
  %res.1 = xor i1 %cmp.idx.1, %cmp.idx.2
  %dst.add.idx.3 = getelementptr i8, ptr %dst.add.idx, i64 3
  %cmp.idx.3 = icmp ult ptr %dst.add.idx.3, %upper
  %res.2 = xor i1 %res.1, %cmp.idx.3
  ret i1 %res.2
}

define i1 @test_chained_no_inbounds(ptr %A, ptr %B) {
; CHECK-LABEL: @test_chained_no_inbounds(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[B_1:%.*]] = getelementptr i8, ptr [[B:%.*]], i64 1
; CHECK-NEXT:    [[B_2:%.*]] = getelementptr i8, ptr [[B_1]], i64 1
; CHECK-NEXT:    [[C_1:%.*]] = icmp ugt ptr [[A:%.*]], null
; CHECK-NEXT:    [[C_2:%.*]] = icmp ugt ptr [[B_1]], [[B_2]]
; CHECK-NEXT:    [[OR:%.*]] = or i1 [[C_1]], [[C_2]]
; CHECK-NEXT:    br i1 [[OR]], label [[THEN:%.*]], label [[ELSE:%.*]]
; CHECK:       then:
; CHECK-NEXT:    ret i1 true
; CHECK:       else:
; CHECK-NEXT:    ret i1 false
;
entry:
  %B.1 = getelementptr i8, ptr %B, i64 1
  %B.2 = getelementptr i8, ptr %B.1, i64 1
  %c.1 = icmp ugt ptr %A, null
  %c.2 = icmp ugt ptr %B.1, %B.2
  %or = or i1 %c.1, %c.2
  br i1 %or, label %then, label %else

then:
  ret i1 true

else:
  ret i1 false
}