xref: /llvm-project/llvm/test/Analysis/ValueTracking/known-non-zero.ll (revision 38fffa630ee80163dc65e759392ad29798905679)

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

declare void @llvm.assume(i1)
declare i8 @llvm.abs.i8(i8, i1)
declare i8 @llvm.bitreverse.i8(i8)
declare i16 @llvm.bswap.i16(i16)
declare i8 @llvm.ctpop.i8(i8)
declare <2 x i8> @llvm.uadd.sat.2xi8(<2 x i8>, <2 x i8>)
declare i8 @llvm.uadd.sat.i8(i8, i8)
declare i8 @llvm.fshr.i8(i8, i8, i8)
declare i8 @llvm.fshl.i8(i8, i8, i8)
declare i8 @llvm.ctlz.i8(i8, i1)
declare i8 @llvm.cttz.i8(i8, i1)
declare i8 @llvm.sadd.sat.i8(i8, i8)
declare i8 @llvm.smax.i8(i8, i8)
declare i8 @llvm.smin.i8(i8, i8)
declare i8 @llvm.sshl.sat.i8(i8, i8)
declare i8 @llvm.ssub.sat.i8(i8, i8)
declare i8 @llvm.umax.i8(i8, i8)
declare i8 @llvm.umin.i8(i8, i8)
declare i8 @llvm.ushl.sat.i8(i8, i8)
declare i8 @llvm.usub.sat.i8(i8, i8)
declare float @llvm.maximum.f32(float, float)

;; Throughout use: X > Y || Y == 0 which folds to X > Y iff X known
;; non-zero. Do this because many of the expressions already have
;; hardcoded cases for folding Foo(X) == 0 -> X == 0 and we want to
;; test explicitly that `isKnownNonZero` works.

define i1 @check_neg(i8 %x, i8 %y) {
; CHECK-LABEL: @check_neg(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NE]])
; CHECK-NEXT:    [[Z:%.*]] = sub i8 0, [[X]]
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i8 [[Z]], [[Y:%.*]]
; CHECK-NEXT:    ret i1 [[CMP0]]
;
  %ne = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %ne)
  %z = sub i8 0, %x
  %cmp0 = icmp ugt i8 %z, %y
  %cmp1 = icmp eq i8 %y, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
}

define i1 @check_abs(i8 %x, i8 %y) {
; CHECK-LABEL: @check_abs(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    br i1 [[NE]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK:       true:
; CHECK-NEXT:    [[Z:%.*]] = call i8 @llvm.abs.i8(i8 [[X]], i1 true)
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i8 [[Z]], [[Y:%.*]]
; CHECK-NEXT:    ret i1 [[CMP0]]
; CHECK:       false:
; CHECK-NEXT:    ret i1 [[NE]]
;
  %ne = icmp ne i8 %x, 0
  br i1 %ne, label %true, label %false
true:
  %z = call i8 @llvm.abs.i8(i8 %x, i1 true)
  %cmp0 = icmp ugt i8 %z, %y
  %cmp1 = icmp eq i8 %y, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
false:
  ret i1 %ne
}

define i1 @check_abs_failish(i8 %x, i8 %y) {
; CHECK-LABEL: @check_abs_failish(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    br i1 [[NE]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK:       false:
; CHECK-NEXT:    [[Z:%.*]] = call i8 @llvm.abs.i8(i8 [[X]], i1 true)
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i8 [[Z]], [[Y:%.*]]
; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i8 [[Y]], 0
; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT:    ret i1 [[R]]
; CHECK:       true:
; CHECK-NEXT:    ret i1 [[NE]]
;
  %ne = icmp ne i8 %x, 0
  br i1 %ne, label %true, label %false
false:
  %z = call i8 @llvm.abs.i8(i8 %x, i1 true)
  %cmp0 = icmp ugt i8 %z, %y
  %cmp1 = icmp eq i8 %y, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
true:
  ret i1 %ne
}

define i1 @check_bitreverse(i8 %x, i8 %y) {
; CHECK-LABEL: @check_bitreverse(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NE]])
; CHECK-NEXT:    [[Z:%.*]] = call i8 @llvm.bitreverse.i8(i8 [[X]])
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i8 [[Z]], [[Y:%.*]]
; CHECK-NEXT:    ret i1 [[CMP0]]
;
  %ne = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %ne)
  %z = call i8 @llvm.bitreverse.i8(i8 %x)
  %cmp0 = icmp ugt i8 %z, %y
  %cmp1 = icmp eq i8 %y, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
}

define i1 @check_bswap(i16 %x, i16 %y) {
; CHECK-LABEL: @check_bswap(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i16 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NE]])
; CHECK-NEXT:    [[Z:%.*]] = call i16 @llvm.bswap.i16(i16 [[X]])
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i16 [[Z]], [[Y:%.*]]
; CHECK-NEXT:    ret i1 [[CMP0]]
;
  %ne = icmp ne i16 %x, 0
  call void @llvm.assume(i1 %ne)
  %z = call i16 @llvm.bswap.i16(i16 %x)
  %cmp0 = icmp ugt i16 %z, %y
  %cmp1 = icmp eq i16 %y, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
}

define i1 @check_ctpop(i8 %x, i8 %y) {
; CHECK-LABEL: @check_ctpop(
; CHECK-NEXT:    [[NE:%.*]] = icmp eq i8 [[X:%.*]], 0
; CHECK-NEXT:    br i1 [[NE]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK:       true:
; CHECK-NEXT:    ret i1 [[NE]]
; CHECK:       false:
; CHECK-NEXT:    [[Z:%.*]] = call i8 @llvm.ctpop.i8(i8 [[X]])
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i8 [[Z]], [[Y:%.*]]
; CHECK-NEXT:    ret i1 [[CMP0]]
;
  %ne = icmp eq i8 %x, 0
  br i1 %ne, label %true, label %false
true:
  ret i1 %ne
false:
  %z = call i8 @llvm.ctpop.i8(i8 %x)
  %cmp0 = icmp ugt i8 %z, %y
  %cmp1 = icmp eq i8 %y, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
}

define i1 @check_add_sat(i8 %x, i8 %y, i8 %w) {
; CHECK-LABEL: @check_add_sat(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NE]])
; CHECK-NEXT:    [[Z:%.*]] = call i8 @llvm.uadd.sat.i8(i8 [[X]], i8 [[Y:%.*]])
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i8 [[Z]], [[W:%.*]]
; CHECK-NEXT:    ret i1 [[CMP0]]
;
  %ne = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %ne)
  %z = call i8 @llvm.uadd.sat.i8(i8 %x, i8 %y)
  %cmp0 = icmp ugt i8 %z, %w
  %cmp1 = icmp eq i8 %w, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
}

define <2 x i1> @check_add_sat_vec(<2 x i8> %x, <2 x i8> %y, <2 x i8> %w) {
; CHECK-LABEL: @check_add_sat_vec(
; CHECK-NEXT:    [[YNZ:%.*]] = or <2 x i8> [[Y:%.*]], <i8 2, i8 1>
; CHECK-NEXT:    [[Z:%.*]] = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> [[X:%.*]], <2 x i8> [[YNZ]])
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt <2 x i8> [[Z]], [[W:%.*]]
; CHECK-NEXT:    ret <2 x i1> [[CMP0]]
;
  %ynz = or <2 x i8> %y, <i8 2, i8 1>
  %z = call <2 x i8> @llvm.uadd.sat.2xi8(<2 x i8> %x, <2 x i8> %ynz)
  %cmp0 = icmp ugt <2 x i8> %z, %w
  %cmp1 = icmp eq <2 x i8> %w, <i8 0, i8 0>
  %r = or <2 x i1> %cmp0, %cmp1
  ret <2 x i1> %r
}

define <2 x i1> @shl_nz_bounded_cnt_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @shl_nz_bounded_cnt_vec(
; CHECK-NEXT:    ret <2 x i1> zeroinitializer
;
  %cnt = and <2 x i32> %x, <i32 16, i32 24>
  %val = or <2 x i32> %y, <i32 131088, i32 16>
  %shl = shl <2 x i32> %val, %cnt
  %r = icmp eq <2 x i32> %shl, zeroinitializer
  ret <2 x i1> %r
}

define i1 @shl_nz_bounded_cnt(i32 %cnt, i32 %y) {
; CHECK-LABEL: @shl_nz_bounded_cnt(
; CHECK-NEXT:    [[CNT_ULT4:%.*]] = icmp ult i32 [[CNT:%.*]], 4
; CHECK-NEXT:    call void @llvm.assume(i1 [[CNT_ULT4]])
; CHECK-NEXT:    ret i1 false
;
  %cnt_ult4 = icmp ult i32 %cnt, 4
  call void @llvm.assume(i1 %cnt_ult4)
  %val = or i32 %y, 131072
  %shl = shl i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define <2 x i1> @shl_nz_bounded_cnt_vec_todo_no_common_bit(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @shl_nz_bounded_cnt_vec_todo_no_common_bit(
; CHECK-NEXT:    [[CNT:%.*]] = and <2 x i32> [[X:%.*]], <i32 16, i32 32>
; CHECK-NEXT:    [[VAL:%.*]] = or <2 x i32> [[Y:%.*]], splat (i32 16)
; CHECK-NEXT:    [[SHL:%.*]] = shl <2 x i32> [[VAL]], [[CNT]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <2 x i32> [[SHL]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[R]]
;
  %cnt = and <2 x i32> %x, <i32 16, i32 32>
  %val = or <2 x i32> %y, <i32 16, i32 16>
  %shl = shl <2 x i32> %val, %cnt
  %r = icmp eq <2 x i32> %shl, zeroinitializer
  ret <2 x i1> %r
}

define i1 @shl_maybe_zero_bounded_cnt_fail(i32 %x, i32 %y) {
; CHECK-LABEL: @shl_maybe_zero_bounded_cnt_fail(
; CHECK-NEXT:    [[CNT:%.*]] = and i32 [[X:%.*]], 16
; CHECK-NEXT:    [[VAL:%.*]] = or i32 [[Y:%.*]], 65536
; CHECK-NEXT:    [[SHL:%.*]] = shl i32 [[VAL]], [[CNT]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[SHL]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %cnt = and i32 %x, 16
  %val = or i32 %y, 65536
  %shl = shl i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define i1 @shl_non_zero_nsw(i8 %s, i8 %cnt) {
; CHECK-LABEL: @shl_non_zero_nsw(
; CHECK-NEXT:    [[NZ:%.*]] = icmp ne i8 [[S:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NZ]])
; CHECK-NEXT:    ret i1 false
;
  %nz = icmp ne i8 %s, 0
  call void @llvm.assume(i1 %nz)
  %v = shl nsw i8 %s, %cnt
  %r = icmp eq i8 %v, 0
  ret i1 %r
}

define i1 @shl_maybe_zero_nsw_fail(i8 %s, i8 %cnt) {
; CHECK-LABEL: @shl_maybe_zero_nsw_fail(
; CHECK-NEXT:    [[V:%.*]] = shl nsw i8 [[S:%.*]], [[CNT:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[V]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %v = shl nsw i8 %s, %cnt
  %r = icmp eq i8 %v, 0
  ret i1 %r
}

define i1 @shl_out_of_range_is_poison(i32 %v, i32 %c) {
; CHECK-LABEL: @shl_out_of_range_is_poison(
; CHECK-NEXT:    ret i1 poison
;
  %sval = or i32 %v, 32
  %shl = shl i32 %c, %sval
  %z = icmp eq i32 %shl, 0
  ret i1 %z
}

define i1 @lshr_nz_bounded_cnt(i32 %cnt, i32 %y) {
; CHECK-LABEL: @lshr_nz_bounded_cnt(
; CHECK-NEXT:    [[CNT_ULT4:%.*]] = icmp ult i32 [[CNT:%.*]], 4
; CHECK-NEXT:    call void @llvm.assume(i1 [[CNT_ULT4]])
; CHECK-NEXT:    ret i1 false
;
  %cnt_ult4 = icmp ult i32 %cnt, 4
  call void @llvm.assume(i1 %cnt_ult4)
  %val = or i32 %y, 90
  %shl = lshr i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define <2 x i1> @ashr_nz_bounded_cnt_vec(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @ashr_nz_bounded_cnt_vec(
; CHECK-NEXT:    ret <2 x i1> zeroinitializer
;
  %cnt = and <2 x i32> %x, <i32 16, i32 24>
  %val = or <2 x i32> %y, <i32 402784272, i32 268697601>
  %shl = ashr <2 x i32> %val, %cnt
  %r = icmp eq <2 x i32> %shl, zeroinitializer
  ret <2 x i1> %r
}

define i1 @lshr_nz_bounded_cnt_fail(i32 %cnt, i32 %y) {
; CHECK-LABEL: @lshr_nz_bounded_cnt_fail(
; CHECK-NEXT:    [[CNT_ULT:%.*]] = icmp ult i32 [[CNT:%.*]], 20
; CHECK-NEXT:    call void @llvm.assume(i1 [[CNT_ULT]])
; CHECK-NEXT:    [[VAL:%.*]] = or i32 [[Y:%.*]], 131072
; CHECK-NEXT:    [[SHL:%.*]] = lshr i32 [[VAL]], [[CNT]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[SHL]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %cnt_ult = icmp ult i32 %cnt, 20
  call void @llvm.assume(i1 %cnt_ult)
  %val = or i32 %y, 131072
  %shl = lshr i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define <2 x i1> @ashr_nz_bounded_cnt_vec_fail(<2 x i32> %x, <2 x i32> %y) {
; CHECK-LABEL: @ashr_nz_bounded_cnt_vec_fail(
; CHECK-NEXT:    [[CNT:%.*]] = and <2 x i32> [[X:%.*]], splat (i32 24)
; CHECK-NEXT:    [[VAL:%.*]] = or <2 x i32> [[Y:%.*]], <i32 131088, i32 268697601>
; CHECK-NEXT:    [[SHL:%.*]] = ashr <2 x i32> [[VAL]], [[CNT]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <2 x i32> [[SHL]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[R]]
;
  %cnt = and <2 x i32> %x, <i32 24, i32 24>
  %val = or <2 x i32> %y, <i32 131088, i32 268697601>
  %shl = ashr <2 x i32> %val, %cnt
  %r = icmp eq <2 x i32> %shl, zeroinitializer
  ret <2 x i1> %r
}

define i1 @lshr_nonzero_and_shift_out_zeros(i32 %cnt, i32 %y) {
; CHECK-LABEL: @lshr_nonzero_and_shift_out_zeros(
; CHECK-NEXT:    [[CNT_ULT:%.*]] = icmp ult i32 [[CNT:%.*]], 4
; CHECK-NEXT:    call void @llvm.assume(i1 [[CNT_ULT]])
; CHECK-NEXT:    [[VAL:%.*]] = and i32 [[Y:%.*]], -131072
; CHECK-NEXT:    [[VAL_NZ:%.*]] = icmp ne i32 [[VAL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[VAL_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %cnt_ult = icmp ult i32 %cnt, 4
  call void @llvm.assume(i1 %cnt_ult)
  %val = and i32 %y, -131072
  %val_nz = icmp ne i32 %val, 0
  call void @llvm.assume(i1 %val_nz)
  %shl = lshr i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define i1 @ashr_nonzero_and_shift_out_zeros(i32 %ccnt, i32 %y) {
; CHECK-LABEL: @ashr_nonzero_and_shift_out_zeros(
; CHECK-NEXT:    [[VAL:%.*]] = and i32 [[Y:%.*]], -131072
; CHECK-NEXT:    [[VAL_NZ:%.*]] = icmp ne i32 [[VAL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[VAL_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %cnt = and i32 %ccnt, 7
  %val = and i32 %y, -131072
  %val_nz = icmp ne i32 %val, 0
  call void @llvm.assume(i1 %val_nz)
  %shl = ashr i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define i1 @shl_nonzero_and_shift_out_zeros(i32 %ccnt, i32 %y) {
; CHECK-LABEL: @shl_nonzero_and_shift_out_zeros(
; CHECK-NEXT:    [[VAL:%.*]] = and i32 [[Y:%.*]], 131071
; CHECK-NEXT:    [[VAL_NZ:%.*]] = icmp ne i32 [[VAL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[VAL_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %cnt = and i32 %ccnt, 6
  %val = and i32 %y, 131071
  %val_nz = icmp ne i32 %val, 0
  call void @llvm.assume(i1 %val_nz)
  %shl = shl i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define i1 @lshr_nonzero_and_shift_out_zeros_fail(i32 %cnt, i32 %y) {
; CHECK-LABEL: @lshr_nonzero_and_shift_out_zeros_fail(
; CHECK-NEXT:    [[CNT_ULT:%.*]] = icmp ult i32 [[CNT:%.*]], 19
; CHECK-NEXT:    call void @llvm.assume(i1 [[CNT_ULT]])
; CHECK-NEXT:    [[VAL:%.*]] = and i32 [[Y:%.*]], -131072
; CHECK-NEXT:    [[VAL_NZ:%.*]] = icmp ne i32 [[VAL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[VAL_NZ]])
; CHECK-NEXT:    [[SHL:%.*]] = lshr i32 [[VAL]], [[CNT]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[SHL]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %cnt_ult = icmp ult i32 %cnt, 19
  call void @llvm.assume(i1 %cnt_ult)
  %val = and i32 %y, -131072
  %val_nz = icmp ne i32 %val, 0
  call void @llvm.assume(i1 %val_nz)
  %shl = lshr i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define i1 @ashr_nonzero_and_shift_out_zeros_fail(i32 %ccnt, i32 %y) {
; CHECK-LABEL: @ashr_nonzero_and_shift_out_zeros_fail(
; CHECK-NEXT:    [[CNT:%.*]] = and i32 [[CCNT:%.*]], 18
; CHECK-NEXT:    [[VAL:%.*]] = and i32 [[Y:%.*]], -131072
; CHECK-NEXT:    [[VAL_NZ:%.*]] = icmp ne i32 [[VAL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[VAL_NZ]])
; CHECK-NEXT:    [[SHL:%.*]] = ashr i32 [[VAL]], [[CNT]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[SHL]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %cnt = and i32 %ccnt, 18
  %val = and i32 %y, -131072
  %val_nz = icmp ne i32 %val, 0
  call void @llvm.assume(i1 %val_nz)
  %shl = ashr i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define i1 @shl_nonzero_and_shift_out_zeros_fail(i32 %ccnt, i32 %y) {
; CHECK-LABEL: @shl_nonzero_and_shift_out_zeros_fail(
; CHECK-NEXT:    [[CNT:%.*]] = and i32 [[CCNT:%.*]], 6
; CHECK-NEXT:    [[VAL:%.*]] = and i32 [[Y:%.*]], 268435455
; CHECK-NEXT:    [[VAL_NZ:%.*]] = icmp ne i32 [[VAL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[VAL_NZ]])
; CHECK-NEXT:    [[SHL:%.*]] = shl i32 [[VAL]], [[CNT]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[SHL]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %cnt = and i32 %ccnt, 6
  %val = and i32 %y, 268435455
  %val_nz = icmp ne i32 %val, 0
  call void @llvm.assume(i1 %val_nz)
  %shl = shl i32 %val, %cnt
  %r = icmp eq i32 %shl, 0
  ret i1 %r
}

define i1 @sub_nonzero_ops_ne(i8 %xx, i8 %yy, i8 %z) {
; CHECK-LABEL: @sub_nonzero_ops_ne(
; CHECK-NEXT:    ret i1 false
;
  %x = and i8 %xx, 191
  %y = or i8 %yy, 64
  %s = sub i8 %x, %y
  %exp = or i8 %z, %s
  %r = icmp eq i8 %exp, 0
  ret i1 %r
}

define i1 @sub_nonzero_ops_ne_fail(i8 %xx, i8 %yy, i8 %z) {
; CHECK-LABEL: @sub_nonzero_ops_ne_fail(
; CHECK-NEXT:    [[X:%.*]] = and i8 [[XX:%.*]], -64
; CHECK-NEXT:    [[Y:%.*]] = or i8 [[YY:%.*]], 64
; CHECK-NEXT:    [[S:%.*]] = sub i8 [[X]], [[Y]]
; CHECK-NEXT:    [[EXP:%.*]] = or i8 [[Z:%.*]], [[S]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[EXP]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x = and i8 %xx, 192
  %y = or i8 %yy, 64
  %s = sub i8 %x, %y
  %exp = or i8 %z, %s
  %r = icmp eq i8 %exp, 0
  ret i1 %r
}

define i1 @add_nonzero_nuw(i8 %x, i8 %y) {
; CHECK-LABEL: @add_nonzero_nuw(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %x_nz = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %x_nz)
  %a = add nuw i8 %x, %y
  %r = icmp eq i8 %a, 0
  ret i1 %r
}

define i1 @add_nonzero_nsw_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @add_nonzero_nsw_fail(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    [[A:%.*]] = add nsw i8 [[X]], [[Y:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[A]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x_nz = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %x_nz)
  %a = add nsw i8 %x, %y
  %r = icmp eq i8 %a, 0
  ret i1 %r
}

define i1 @udiv_y_le_x(i8 %xx, i8 %yy, i8 %z) {
; CHECK-LABEL: @udiv_y_le_x(
; CHECK-NEXT:    ret i1 false
;
  %x = or i8 %xx, 7
  %y = and i8 %yy, 7
  %d = udiv i8 %x, %y
  %o = or i8 %d, %z
  %r = icmp eq i8 %o, 0
  ret i1 %r
}

define i1 @udiv_y_le_x_fail(i8 %xx, i8 %yy, i8 %z) {
; CHECK-LABEL: @udiv_y_le_x_fail(
; CHECK-NEXT:    [[X:%.*]] = or i8 [[XX:%.*]], 6
; CHECK-NEXT:    [[Y:%.*]] = and i8 [[YY:%.*]], 7
; CHECK-NEXT:    [[D:%.*]] = udiv i8 [[X]], [[Y]]
; CHECK-NEXT:    [[O:%.*]] = or i8 [[D]], [[Z:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[O]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x = or i8 %xx, 6
  %y = and i8 %yy, 7
  %d = udiv i8 %x, %y
  %o = or i8 %d, %z
  %r = icmp eq i8 %o, 0
  ret i1 %r
}

define i1 @fshr_non_zero(i8 %x, i8 %y, i8 %z) {
; CHECK-LABEL: @fshr_non_zero(
; CHECK-NEXT:    [[PRED0:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRED0]])
; CHECK-NEXT:    ret i1 false
;
  %pred0 = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %pred0)
  %v = tail call i8 @llvm.fshr.i8(i8 %x, i8 %x, i8 %y)
  %or = or i8 %v, %z
  %r = icmp eq i8 %or, 0
  ret i1 %r
}

define i1 @fshr_non_zero_fail(i8 %x, i8 %y, i8 %z, i8 %w) {
; CHECK-LABEL: @fshr_non_zero_fail(
; CHECK-NEXT:    [[PRED0:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRED0]])
; CHECK-NEXT:    [[PRED1:%.*]] = icmp ne i8 [[W:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRED1]])
; CHECK-NEXT:    [[V:%.*]] = tail call i8 @llvm.fshr.i8(i8 [[X]], i8 [[W]], i8 [[Y:%.*]])
; CHECK-NEXT:    [[OR:%.*]] = or i8 [[V]], [[Z:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[OR]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %pred0 = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %pred0)
  %pred1 = icmp ne i8 %w, 0
  call void @llvm.assume(i1 %pred1)
  %v = tail call i8 @llvm.fshr.i8(i8 %x, i8 %w, i8 %y)
  %or = or i8 %v, %z
  %r = icmp eq i8 %or, 0
  ret i1 %r
}

define i1 @fshl_non_zero(i8 %x, i8 %y, i8 %z) {
; CHECK-LABEL: @fshl_non_zero(
; CHECK-NEXT:    [[PRED0:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRED0]])
; CHECK-NEXT:    ret i1 false
;
  %pred0 = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %pred0)
  %v = tail call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 %y)
  %or = or i8 %v, %z
  %r = icmp eq i8 %or, 0
  ret i1 %r
}

define i1 @fshl_non_zero_fail(i8 %x, i8 %y, i8 %z, i8 %w) {
; CHECK-LABEL: @fshl_non_zero_fail(
; CHECK-NEXT:    [[PRED0:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRED0]])
; CHECK-NEXT:    [[PRED1:%.*]] = icmp ne i8 [[W:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[PRED1]])
; CHECK-NEXT:    [[V:%.*]] = tail call i8 @llvm.fshl.i8(i8 [[X]], i8 [[W]], i8 [[Y:%.*]])
; CHECK-NEXT:    [[OR:%.*]] = or i8 [[V]], [[Z:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[OR]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %pred0 = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %pred0)
  %pred1 = icmp ne i8 %w, 0
  call void @llvm.assume(i1 %pred1)
  %v = tail call i8 @llvm.fshl.i8(i8 %x, i8 %w, i8 %y)
  %or = or i8 %v, %z
  %r = icmp eq i8 %or, 0
  ret i1 %r
}

define i1 @bitcast_nonzero(<2 x i8> %xx, i16 %ind) {
; CHECK-LABEL: @bitcast_nonzero(
; CHECK-NEXT:    ret i1 false
;
  %xa = add nuw nsw <2 x i8> %xx, <i8 1, i8 1>
  %x = bitcast <2 x i8> %xa to i16
  %z = or i16 %x, %ind
  %r = icmp eq i16 %z, 0
  ret i1 %r
}

define i1 @bitcast_todo_partial_nonzero_vec_to_int(<2 x i8> %xx, i16 %ind) {
; CHECK-LABEL: @bitcast_todo_partial_nonzero_vec_to_int(
; CHECK-NEXT:    [[XA:%.*]] = add nuw nsw <2 x i8> [[XX:%.*]], <i8 1, i8 0>
; CHECK-NEXT:    [[X:%.*]] = bitcast <2 x i8> [[XA]] to i16
; CHECK-NEXT:    [[Z:%.*]] = or i16 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i16 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %xa = add nuw nsw <2 x i8> %xx, <i8 1, i8 0>
  %x = bitcast <2 x i8> %xa to i16
  %z = or i16 %x, %ind
  %r = icmp eq i16 %z, 0
  ret i1 %r
}

define <2 x i1> @bitcast_fail_nonzero_int_to_vec(i16 %xx, <2 x i8> %ind) {
; CHECK-LABEL: @bitcast_fail_nonzero_int_to_vec(
; CHECK-NEXT:    [[XA:%.*]] = add nuw nsw i16 [[XX:%.*]], 1
; CHECK-NEXT:    [[X:%.*]] = bitcast i16 [[XA]] to <2 x i8>
; CHECK-NEXT:    [[Z:%.*]] = or <2 x i8> [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <2 x i8> [[Z]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[R]]
;
  %xa = add nuw nsw i16 %xx, 1
  %x = bitcast i16 %xa to <2 x i8>
  %z = or <2 x i8> %x, %ind
  %r = icmp eq <2 x i8> %z, zeroinitializer
  ret <2 x i1> %r
}

define <2 x i1> @bitcast_veci8_to_veci16(<4 x i8> %xx, <2 x i16> %ind) {
; CHECK-LABEL: @bitcast_veci8_to_veci16(
; CHECK-NEXT:    ret <2 x i1> zeroinitializer
;
  %xa = add nuw nsw <4 x i8> %xx, <i8 1, i8 1, i8 1, i8 1>
  %x = bitcast <4 x i8> %xa to <2 x i16>
  %z = or <2 x i16> %x, %ind
  %r = icmp eq <2 x i16> %z, zeroinitializer
  ret <2 x i1> %r
}

define <3 x i1> @bitcast_veci3_to_veci4_fail_not_multiple(<4 x i3> %xx, <3 x i4> %ind) {
; CHECK-LABEL: @bitcast_veci3_to_veci4_fail_not_multiple(
; CHECK-NEXT:    [[XA:%.*]] = add nuw nsw <4 x i3> [[XX:%.*]], splat (i3 1)
; CHECK-NEXT:    [[X:%.*]] = bitcast <4 x i3> [[XA]] to <3 x i4>
; CHECK-NEXT:    [[Z:%.*]] = or <3 x i4> [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <3 x i4> [[Z]], zeroinitializer
; CHECK-NEXT:    ret <3 x i1> [[R]]
;
  %xa = add nuw nsw <4 x i3> %xx, <i3 1, i3 1, i3 1, i3 1>
  %x = bitcast <4 x i3> %xa to <3 x i4>
  %z = or <3 x i4> %x, %ind
  %r = icmp eq <3 x i4> %z, zeroinitializer
  ret <3 x i1> %r
}

define <4 x i1> @bitcast_fail_veci16_to_veci8(<2 x i16> %xx, <4 x i8> %ind) {
; CHECK-LABEL: @bitcast_fail_veci16_to_veci8(
; CHECK-NEXT:    [[XA:%.*]] = add nuw nsw <2 x i16> [[XX:%.*]], splat (i16 1)
; CHECK-NEXT:    [[X:%.*]] = bitcast <2 x i16> [[XA]] to <4 x i8>
; CHECK-NEXT:    [[Z:%.*]] = or <4 x i8> [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <4 x i8> [[Z]], zeroinitializer
; CHECK-NEXT:    ret <4 x i1> [[R]]
;
  %xa = add nuw nsw <2 x i16> %xx, <i16 1, i16 1>
  %x = bitcast <2 x i16> %xa to <4 x i8>
  %z = or <4 x i8> %x, %ind
  %r = icmp eq <4 x i8> %z, zeroinitializer
  ret <4 x i1> %r
}

define i1 @bitcast_nonzero_fail_dont_check_float(float %xx, i32 %ind) {
; CHECK-LABEL: @bitcast_nonzero_fail_dont_check_float(
; CHECK-NEXT:    [[XA:%.*]] = call float @llvm.maximum.f32(float [[XX:%.*]], float 1.000000e+00)
; CHECK-NEXT:    [[X:%.*]] = bitcast float [[XA]] to i32
; CHECK-NEXT:    [[Z:%.*]] = or i32 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %xa = call float @llvm.maximum.f32(float %xx, float 1.000000e+00)
  %x = bitcast float %xa to i32
  %z = or i32 %x, %ind
  %r = icmp eq i32 %z, 0
  ret i1 %r
}

define i1 @ctlz_true_nonzero(i8 %xx, i8 %ind) {
; CHECK-LABEL: @ctlz_true_nonzero(
; CHECK-NEXT:    ret i1 false
;
  %xs = lshr i8 %xx, 1
  %x = call i8 @llvm.ctlz.i8(i8 %xs, i1 true)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @ctlz_false_nonzero(i8 %xx, i8 %ind) {
; CHECK-LABEL: @ctlz_false_nonzero(
; CHECK-NEXT:    ret i1 false
;
  %xa = and i8 %xx, 127
  %x = call i8 @llvm.ctlz.i8(i8 %xa, i1 true)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @ctlz_nonzero_fail_maybe_neg(i8 %xx, i8 %ind) {
; CHECK-LABEL: @ctlz_nonzero_fail_maybe_neg(
; CHECK-NEXT:    [[XS:%.*]] = ashr i8 [[XX:%.*]], 1
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.ctlz.i8(i8 [[XS]], i1 true)
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %xs = ashr i8 %xx, 1
  %x = call i8 @llvm.ctlz.i8(i8 %xs, i1 true)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @cttz_true_nonzero(i8 %xx, i8 %ind) {
; CHECK-LABEL: @cttz_true_nonzero(
; CHECK-NEXT:    ret i1 false
;
  %xs = shl i8 %xx, 1
  %x = call i8 @llvm.cttz.i8(i8 %xs, i1 true)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @cttz_false_nonzero(i8 %xx, i8 %ind) {
; CHECK-LABEL: @cttz_false_nonzero(
; CHECK-NEXT:    ret i1 false
;
  %xa = and i8 %xx, -2
  %x = call i8 @llvm.cttz.i8(i8 %xa, i1 true)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @cttz_nonzero_fail_maybe_odd(i8 %xx, i8 %cnt, i8 %ind) {
; CHECK-LABEL: @cttz_nonzero_fail_maybe_odd(
; CHECK-NEXT:    [[XS:%.*]] = shl i8 [[XX:%.*]], [[CNT:%.*]]
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.cttz.i8(i8 [[XS]], i1 true)
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %xs = shl i8 %xx, %cnt
  %x = call i8 @llvm.cttz.i8(i8 %xs, i1 true)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @mul_nonzero_odd(i8 %xx, i8 %y, i8 %ind) {
; CHECK-LABEL: @mul_nonzero_odd(
; CHECK-NEXT:    [[Y_NZ:%.*]] = icmp ne i8 [[Y:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[Y_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %xo = or i8 %xx, 1
  %y_nz = icmp ne i8 %y, 0
  call void @llvm.assume(i1 %y_nz)
  %x = mul i8 %xo, %y
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @mul_nonzero_odd_fail_y_maybe_zero(i8 %xx, i8 %y, i8 %ind) {
; CHECK-LABEL: @mul_nonzero_odd_fail_y_maybe_zero(
; CHECK-NEXT:    [[XO:%.*]] = or i8 [[XX:%.*]], 1
; CHECK-NEXT:    [[X:%.*]] = mul i8 [[XO]], [[Y:%.*]]
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %xo = or i8 %xx, 1
  %x = mul i8 %xo, %y
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @sshl_nonzero(i8 %xx, i8 %y, i8 %ind) {
; CHECK-LABEL: @sshl_nonzero(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %x_nz = icmp ne i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %x = call i8 @llvm.sshl.sat.i8(i8 %xx, i8 %y)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @sshl_nonzero_fail_x_maybe_z(i8 %xx, i8 %y, i8 %ind) {
; CHECK-LABEL: @sshl_nonzero_fail_x_maybe_z(
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.sshl.sat.i8(i8 [[XX:%.*]], i8 [[Y:%.*]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x = call i8 @llvm.sshl.sat.i8(i8 %xx, i8 %y)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @ushl_nonzero(i8 %xx, i8 %y, i8 %ind) {
; CHECK-LABEL: @ushl_nonzero(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %x_nz = icmp ne i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %x = call i8 @llvm.ushl.sat.i8(i8 %xx, i8 %y)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @ushl_nonzero_fail_x_maybe_z(i8 %xx, i8 %y, i8 %ind) {
; CHECK-LABEL: @ushl_nonzero_fail_x_maybe_z(
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.ushl.sat.i8(i8 [[XX:%.*]], i8 [[Y:%.*]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x = call i8 @llvm.ushl.sat.i8(i8 %xx, i8 %y)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @ssub_sat_nonzero(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @ssub_sat_nonzero(
; CHECK-NEXT:    ret i1 false
;
  %xa = and i8 %xx, 191
  %yo = or i8 %yy, 64
  %x = call i8 @llvm.ssub.sat.i8(i8 %xa, i8 %yo)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @ssub_sat_nonzero_ne_known_bits_fail_overlap(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @ssub_sat_nonzero_ne_known_bits_fail_overlap(
; CHECK-NEXT:    [[XA:%.*]] = and i8 [[XX:%.*]], -64
; CHECK-NEXT:    [[YO:%.*]] = or i8 [[YY:%.*]], 64
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.ssub.sat.i8(i8 [[XA]], i8 [[YO]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %xa = and i8 %xx, 192
  %yo = or i8 %yy, 64
  %x = call i8 @llvm.ssub.sat.i8(i8 %xa, i8 %yo)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @usub_sat_nonzero(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @usub_sat_nonzero(
; CHECK-NEXT:    [[Y_ULT_31:%.*]] = icmp ult i8 [[YY:%.*]], 31
; CHECK-NEXT:    call void @llvm.assume(i1 [[Y_ULT_31]])
; CHECK-NEXT:    [[XO:%.*]] = or i8 [[XX:%.*]], 34
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.usub.sat.i8(i8 [[XO]], i8 [[YY]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %y_ult_31 = icmp ult i8 %yy, 31
  call void @llvm.assume(i1 %y_ult_31)
  %xo = or i8 %xx, 34
  %x = call i8 @llvm.usub.sat.i8(i8 %xo, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @usub_sat_nonzero_fail(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @usub_sat_nonzero_fail(
; CHECK-NEXT:    [[XA:%.*]] = and i8 [[XX:%.*]], 16
; CHECK-NEXT:    [[YO:%.*]] = or i8 [[YY:%.*]], 7
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.usub.sat.i8(i8 [[XA]], i8 [[YO]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %xa = and i8 %xx, 16
  %yo = or i8 %yy, 7
  %x = call i8 @llvm.usub.sat.i8(i8 %xa, i8 %yo)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @sadd_sat_nonzero(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @sadd_sat_nonzero(
; CHECK-NEXT:    [[X_STRICT_POS:%.*]] = icmp sgt i8 [[XX:%.*]], 0
; CHECK-NEXT:    [[Y_POS:%.*]] = icmp sge i8 [[YY:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_STRICT_POS]])
; CHECK-NEXT:    call void @llvm.assume(i1 [[Y_POS]])
; CHECK-NEXT:    ret i1 false
;
  %x_strict_pos = icmp sgt i8 %xx, 0
  %y_pos = icmp sge i8 %yy, 0
  call void @llvm.assume(i1 %x_strict_pos)
  call void @llvm.assume(i1 %y_pos)
  %x = call i8 @llvm.sadd.sat.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @sadd_sat_nonzero_fail_maybe_zz(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @sadd_sat_nonzero_fail_maybe_zz(
; CHECK-NEXT:    [[X_POS:%.*]] = icmp sge i8 [[XX:%.*]], 0
; CHECK-NEXT:    [[Y_POS:%.*]] = icmp sge i8 [[YY:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_POS]])
; CHECK-NEXT:    call void @llvm.assume(i1 [[Y_POS]])
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.sadd.sat.i8(i8 [[XX]], i8 [[YY]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x_pos = icmp sge i8 %xx, 0
  %y_pos = icmp sge i8 %yy, 0
  call void @llvm.assume(i1 %x_pos)
  call void @llvm.assume(i1 %y_pos)
  %x = call i8 @llvm.sadd.sat.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @umax_nonzero(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @umax_nonzero(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %x_nz = icmp ne i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %x = call i8 @llvm.umax.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @umax_nonzero_fail_x_maybe_z(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @umax_nonzero_fail_x_maybe_z(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp sge i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.umax.i8(i8 [[XX]], i8 [[YY:%.*]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x_nz = icmp sge i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %x = call i8 @llvm.umax.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @umin_nonzero(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @umin_nonzero(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    [[Y_NZ:%.*]] = icmp ne i8 [[YY:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[Y_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %x_nz = icmp ne i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %y_nz = icmp ne i8 %yy, 0
  call void @llvm.assume(i1 %y_nz)
  %x = call i8 @llvm.umin.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @umin_nonzero_fail_y_maybe_z(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @umin_nonzero_fail_y_maybe_z(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.umin.i8(i8 [[XX]], i8 [[YY:%.*]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x_nz = icmp ne i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %x = call i8 @llvm.umin.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @smin_nonzero(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @smin_nonzero(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp ne i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    [[Y_NZ:%.*]] = icmp ne i8 [[YY:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[Y_NZ]])
; CHECK-NEXT:    ret i1 false
;
  %x_nz = icmp ne i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %y_nz = icmp ne i8 %yy, 0
  call void @llvm.assume(i1 %y_nz)
  %x = call i8 @llvm.umin.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @smin_nonzero_neg_arg(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @smin_nonzero_neg_arg(
; CHECK-NEXT:    [[X_NEG:%.*]] = icmp slt i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NEG]])
; CHECK-NEXT:    ret i1 false
;
  %x_neg = icmp slt i8 %xx, 0
  call void @llvm.assume(i1 %x_neg)
  %x = call i8 @llvm.smin.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @smin_nonzero_fail_y_maybe_z(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @smin_nonzero_fail_y_maybe_z(
; CHECK-NEXT:    [[X_NZ:%.*]] = icmp sle i8 [[XX:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NZ]])
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.smin.i8(i8 [[XX]], i8 [[YY:%.*]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x_nz = icmp sle i8 %xx, 0
  call void @llvm.assume(i1 %x_nz)
  %x = call i8 @llvm.smin.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @smax_nonzero_pos_arg(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @smax_nonzero_pos_arg(
; CHECK-NEXT:    ret i1 false
;
  %ya = and i8 %yy, 127
  %yo = or i8 %ya, 1
  %x = call i8 @llvm.smax.i8(i8 %xx, i8 %yo)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @smax_nonzero_pos_arg_fail_nonstrict_pos(i8 %xx, i8 %yy, i8 %ind) {
; CHECK-LABEL: @smax_nonzero_pos_arg_fail_nonstrict_pos(
; CHECK-NEXT:    [[Y_POS:%.*]] = icmp sge i8 [[YY:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[Y_POS]])
; CHECK-NEXT:    [[X:%.*]] = call i8 @llvm.smax.i8(i8 [[XX:%.*]], i8 [[YY]])
; CHECK-NEXT:    [[Z:%.*]] = or i8 [[X]], [[IND:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[Z]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %y_pos = icmp sge i8 %yy, 0
  call void @llvm.assume(i1 %y_pos)
  %x = call i8 @llvm.smax.i8(i8 %xx, i8 %yy)
  %z = or i8 %x, %ind
  %r = icmp eq i8 %z, 0
  ret i1 %r
}

define i1 @mul_nonzero_contains_nonzero_mul(i8 %x, i8 %y) {
; CHECK-LABEL: @mul_nonzero_contains_nonzero_mul(
; CHECK-NEXT:    ret i1 true
;
  %xx = or i8 %x, 16
  %yy = or i8 %y, 8
  %xy = mul i8 %xx, %yy
  %nz = icmp ne i8 %xy, 0
  ret i1 %nz
}

define i1 @src_mul_maybe_zero_no_nonzero_mul(i8 %x, i8 %y) {
; CHECK-LABEL: @src_mul_maybe_zero_no_nonzero_mul(
; CHECK-NEXT:    [[XX:%.*]] = or i8 [[X:%.*]], 96
; CHECK-NEXT:    [[YY:%.*]] = or i8 [[Y:%.*]], 8
; CHECK-NEXT:    [[XY:%.*]] = mul i8 [[XX]], [[YY]]
; CHECK-NEXT:    [[NZ:%.*]] = icmp ne i8 [[XY]], 0
; CHECK-NEXT:    ret i1 [[NZ]]
;
  %xx = or i8 %x, 96
  %yy = or i8 %y, 8
  %xy = mul i8 %xx, %yy
  %nz = icmp ne i8 %xy, 0
  ret i1 %nz
}

define i1 @sdiv_known_non_zero(i8 %x, i8 %y) {
; CHECK-LABEL: @sdiv_known_non_zero(
; CHECK-NEXT:    ret i1 true
;
  %xx0 = or i8 %x, 135
  %xx = and i8 %xx0, -2
  %xy = sdiv i8 %xx, -2
  %nz = icmp ne i8 %xy, 0
  ret i1 %nz
}

define i1 @sdiv_known_non_zero2(i8 %x, i8 %y) {
; CHECK-LABEL: @sdiv_known_non_zero2(
; CHECK-NEXT:    ret i1 true
;
  %xx0 = or i8 %x, 15
  %xx = and i8 %xx0, -4
  %yy = and i8 %y, 3
  %xy = sdiv i8 %xx, %yy
  %nz = icmp ne i8 %xy, 0
  ret i1 %nz
}

define i1 @sdiv_known_non_zero_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @sdiv_known_non_zero_fail(
; CHECK-NEXT:    [[XX:%.*]] = or i8 [[X:%.*]], 15
; CHECK-NEXT:    [[YY:%.*]] = and i8 [[Y:%.*]], 3
; CHECK-NEXT:    [[XY:%.*]] = sdiv i8 [[XX]], [[YY]]
; CHECK-NEXT:    [[NZ:%.*]] = icmp ne i8 [[XY]], 0
; CHECK-NEXT:    ret i1 [[NZ]]
;
  %xx = or i8 %x, 15
  %yy = and i8 %y, 3
  %xy = sdiv i8 %xx, %yy
  %nz = icmp ne i8 %xy, 0
  ret i1 %nz
}

define <2 x i1> @cmp_excludes_zero_with_nonsplat_vec(<2 x i8> %a, <2 x i8> %b) {
; CHECK-LABEL: @cmp_excludes_zero_with_nonsplat_vec(
; CHECK-NEXT:    ret <2 x i1> zeroinitializer
;
  %c = icmp sge <2 x i8> %a, <i8 1, i8 4>
  %s = select <2 x i1> %c, <2 x i8> %a, <2 x i8> <i8 4, i8 5>
  %and = or <2 x i8> %s, %b
  %r = icmp eq <2 x i8> %and, zeroinitializer
  ret <2 x i1> %r
}

define <2 x i1> @cmp_excludes_zero_with_nonsplat_vec_wundef(<2 x i8> %a, <2 x i8> %b) {
; CHECK-LABEL: @cmp_excludes_zero_with_nonsplat_vec_wundef(
; CHECK-NEXT:    [[C:%.*]] = icmp sge <2 x i8> [[A:%.*]], <i8 1, i8 undef>
; CHECK-NEXT:    [[S:%.*]] = select <2 x i1> [[C]], <2 x i8> [[A]], <2 x i8> <i8 4, i8 5>
; CHECK-NEXT:    [[AND:%.*]] = or <2 x i8> [[S]], [[B:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <2 x i8> [[AND]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[R]]
;
  %c = icmp sge <2 x i8> %a, <i8 1, i8 undef>
  %s = select <2 x i1> %c, <2 x i8> %a, <2 x i8> <i8 4, i8 5>
  %and = or <2 x i8> %s, %b
  %r = icmp eq <2 x i8> %and, zeroinitializer
  ret <2 x i1> %r
}

define <2 x i1> @cmp_excludes_zero_with_nonsplat_vec_wpoison(<2 x i8> %a, <2 x i8> %b) {
; CHECK-LABEL: @cmp_excludes_zero_with_nonsplat_vec_wpoison(
; CHECK-NEXT:    [[C:%.*]] = icmp sge <2 x i8> [[A:%.*]], <i8 1, i8 poison>
; CHECK-NEXT:    [[S:%.*]] = select <2 x i1> [[C]], <2 x i8> [[A]], <2 x i8> <i8 4, i8 5>
; CHECK-NEXT:    [[AND:%.*]] = or <2 x i8> [[S]], [[B:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <2 x i8> [[AND]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[R]]
;
  %c = icmp sge <2 x i8> %a, <i8 1, i8 poison>
  %s = select <2 x i1> %c, <2 x i8> %a, <2 x i8> <i8 4, i8 5>
  %and = or <2 x i8> %s, %b
  %r = icmp eq <2 x i8> %and, zeroinitializer
  ret <2 x i1> %r
}

define <2 x i1> @cmp_excludes_zero_with_nonsplat_vec_fail(<2 x i8> %a, <2 x i8> %b) {
; CHECK-LABEL: @cmp_excludes_zero_with_nonsplat_vec_fail(
; CHECK-NEXT:    [[C:%.*]] = icmp sge <2 x i8> [[A:%.*]], <i8 0, i8 4>
; CHECK-NEXT:    [[S:%.*]] = select <2 x i1> [[C]], <2 x i8> [[A]], <2 x i8> <i8 4, i8 5>
; CHECK-NEXT:    [[AND:%.*]] = or <2 x i8> [[S]], [[B:%.*]]
; CHECK-NEXT:    [[R:%.*]] = icmp eq <2 x i8> [[AND]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[R]]
;
  %c = icmp sge <2 x i8> %a, <i8 0, i8 4>
  %s = select <2 x i1> %c, <2 x i8> %a, <2 x i8> <i8 4, i8 5>
  %and = or <2 x i8> %s, %b
  %r = icmp eq <2 x i8> %and, zeroinitializer
  ret <2 x i1> %r
}

define i1 @sub_via_non_eq(i8 %x, i8 %y) {
; CHECK-LABEL: @sub_via_non_eq(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[NE]])
; CHECK-NEXT:    ret i1 false
;
  %ne = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %ne)
  %shl = shl nuw i8 %x, 3
  %sub = sub i8 %x, %shl
  %cmp = icmp eq i8 %sub, 0
  ret i1 %cmp
}

; Test mismatch of ptrtoints type and pointer size
define i1 @recursiveGEP_orcmp_truncPtr(ptr %val1, i32 %val2) {
; CHECK-LABEL: @recursiveGEP_orcmp_truncPtr(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[WHILE_COND_I:%.*]]
; CHECK:       while.cond.i:
; CHECK-NEXT:    [[A_PN_I:%.*]] = phi ptr [ [[TEST_0_I:%.*]], [[WHILE_COND_I]] ], [ [[VAL1:%.*]], [[ENTRY:%.*]] ]
; CHECK-NEXT:    [[TEST_0_I]] = getelementptr inbounds i8, ptr [[A_PN_I]], i64 1
; CHECK-NEXT:    [[TMP0:%.*]] = load i8, ptr [[TEST_0_I]], align 2
; CHECK-NEXT:    [[CMP3_NOT_I:%.*]] = icmp eq i8 [[TMP0]], 0
; CHECK-NEXT:    br i1 [[CMP3_NOT_I]], label [[WHILE_END_I:%.*]], label [[WHILE_COND_I]]
; CHECK:       while.end.i:
; CHECK-NEXT:    [[SUB_PTR_LHS_CAST_I:%.*]] = ptrtoint ptr [[TEST_0_I]] to i32
; CHECK-NEXT:    [[SUB_PTR_RHS_CAST_I:%.*]] = ptrtoint ptr [[VAL1]] to i32
; CHECK-NEXT:    [[SUB_PTR_SUB_I:%.*]] = sub i32 [[SUB_PTR_LHS_CAST_I]], [[SUB_PTR_RHS_CAST_I]]
; CHECK-NEXT:    [[ORVAL:%.*]] = or i32 [[VAL2:%.*]], [[SUB_PTR_SUB_I]]
; CHECK-NEXT:    [[BOOL:%.*]] = icmp eq i32 [[ORVAL]], 0
; CHECK-NEXT:    ret i1 [[BOOL]]
;
entry:
  br label %while.cond.i

while.cond.i:
  %a.pn.i = phi ptr [ %test.0.i, %while.cond.i ], [ %val1, %entry ]
  %test.0.i = getelementptr inbounds i8, ptr %a.pn.i, i64 1
  %0 = load i8, ptr %test.0.i, align 2
  %cmp3.not.i = icmp eq i8 %0, 0
  br i1 %cmp3.not.i, label %while.end.i, label %while.cond.i

while.end.i:
  %sub.ptr.lhs.cast.i = ptrtoint ptr %test.0.i to i32
  %sub.ptr.rhs.cast.i = ptrtoint ptr %val1 to i32
  %sub.ptr.sub.i = sub i32 %sub.ptr.lhs.cast.i, %sub.ptr.rhs.cast.i
  %orval = or i32 %val2, %sub.ptr.sub.i
  %bool = icmp eq i32 %orval, 0
  ret i1 %bool
}

define i1 @check_get_vector_length(i32 %x, i32 %y) {
; CHECK-LABEL: @check_get_vector_length(
; CHECK-NEXT:    [[NE:%.*]] = icmp ne i32 [[X:%.*]], 0
; CHECK-NEXT:    br i1 [[NE]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK:       true:
; CHECK-NEXT:    [[Z:%.*]] = call i32 @llvm.experimental.get.vector.length.i32(i32 [[X]], i32 1, i1 true)
; CHECK-NEXT:    [[CMP0:%.*]] = icmp ugt i32 [[Z]], [[Y:%.*]]
; CHECK-NEXT:    ret i1 [[CMP0]]
; CHECK:       false:
; CHECK-NEXT:    ret i1 [[NE]]
;
  %ne = icmp ne i32 %x, 0
  br i1 %ne, label %true, label %false
true:
  %z = call i32 @llvm.experimental.get.vector.length.i32(i32 %x, i32 1, i1 true)
  %cmp0 = icmp ugt i32 %z, %y
  %cmp1 = icmp eq i32 %y, 0
  %r = or i1 %cmp0, %cmp1
  ret i1 %r
false:
  ret i1 %ne
}

define <2 x i1> @range_metadata_vec(ptr %p, <2 x i32> %x) {
; CHECK-LABEL: @range_metadata_vec(
; CHECK-NEXT:    ret <2 x i1> splat (i1 true)
;
  %v = load <2 x i32>, ptr %p, !range !{i32 1, i32 100}
  %or = or <2 x i32> %v, %x
  %cmp = icmp ne <2 x i32> %or, zeroinitializer
  ret <2 x i1> %cmp
}

define i1 @range_attr(i8 range(i8 1, 0) %x, i8 %y) {
; CHECK-LABEL: @range_attr(
; CHECK-NEXT:    ret i1 false
;
  %or = or i8 %y, %x
  %cmp = icmp eq i8 %or, 0
  ret i1 %cmp
}

define i1 @neg_range_attr(i8 range(i8 -1, 1) %x, i8 %y) {
; CHECK-LABEL: @neg_range_attr(
; CHECK-NEXT:    [[OR:%.*]] = or i8 [[Y:%.*]], [[X:%.*]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i8 [[OR]], 0
; CHECK-NEXT:    ret i1 [[CMP]]
;
  %or = or i8 %y, %x
  %cmp = icmp eq i8 %or, 0
  ret i1 %cmp
}

declare range(i8 1, 0) i8 @returns_non_zero_range_helper()
declare range(i8 -1, 1) i8 @returns_contain_zero_range_helper()

define i1 @range_return(i8 %y) {
; CHECK-LABEL: @range_return(
; CHECK-NEXT:    [[X:%.*]] = call i8 @returns_non_zero_range_helper()
; CHECK-NEXT:    ret i1 false
;
  %x = call i8 @returns_non_zero_range_helper()
  %or = or i8 %y, %x
  %cmp = icmp eq i8 %or, 0
  ret i1 %cmp
}

define i1 @neg_range_return(i8 %y) {
; CHECK-LABEL: @neg_range_return(
; CHECK-NEXT:    [[X:%.*]] = call i8 @returns_contain_zero_range_helper()
; CHECK-NEXT:    [[OR:%.*]] = or i8 [[Y:%.*]], [[X]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i8 [[OR]], 0
; CHECK-NEXT:    ret i1 [[CMP]]
;
  %x = call i8 @returns_contain_zero_range_helper()
  %or = or i8 %y, %x
  %cmp = icmp eq i8 %or, 0
  ret i1 %cmp
}

declare i8 @returns_i8_helper()

define i1 @range_call(i8 %y) {
; CHECK-LABEL: @range_call(
; CHECK-NEXT:    [[X:%.*]] = call range(i8 1, 0) i8 @returns_i8_helper()
; CHECK-NEXT:    ret i1 false
;
  %x = call range(i8 1, 0) i8 @returns_i8_helper()
  %or = or i8 %y, %x
  %cmp = icmp eq i8 %or, 0
  ret i1 %cmp
}

define i1 @neg_range_call(i8 %y) {
; CHECK-LABEL: @neg_range_call(
; CHECK-NEXT:    [[X:%.*]] = call range(i8 -1, 1) i8 @returns_i8_helper()
; CHECK-NEXT:    [[OR:%.*]] = or i8 [[Y:%.*]], [[X]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i8 [[OR]], 0
; CHECK-NEXT:    ret i1 [[CMP]]
;
  %x = call range(i8 -1, 1) i8 @returns_i8_helper()
  %or = or i8 %y, %x
  %cmp = icmp eq i8 %or, 0
  ret i1 %cmp
}

define <2 x i1> @range_attr_vec(<2 x i8> range(i8 1, 0) %x, <2 x i8> %y) {
; CHECK-LABEL: @range_attr_vec(
; CHECK-NEXT:    ret <2 x i1> splat (i1 true)
;
  %or = or <2 x i8> %y, %x
  %cmp = icmp ne <2 x i8> %or, zeroinitializer
  ret <2 x i1> %cmp
}

define <2 x i1> @neg_range_attr_vec(<2 x i8> range(i8 -1, 1) %x, <2 x i8> %y) {
; CHECK-LABEL: @neg_range_attr_vec(
; CHECK-NEXT:    [[OR:%.*]] = or <2 x i8> [[Y:%.*]], [[X:%.*]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp ne <2 x i8> [[OR]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[CMP]]
;
  %or = or <2 x i8> %y, %x
  %cmp = icmp ne <2 x i8> %or, zeroinitializer
  ret <2 x i1> %cmp
}

declare range(i8 1, 0) <2 x i8> @returns_non_zero_range_helper_vec()
declare range(i8 -1, 1) <2 x i8> @returns_contain_zero_range_helper_vec()

define <2 x i1> @range_return_vec(<2 x i8> %y) {
; CHECK-LABEL: @range_return_vec(
; CHECK-NEXT:    [[X:%.*]] = call <2 x i8> @returns_non_zero_range_helper_vec()
; CHECK-NEXT:    ret <2 x i1> splat (i1 true)
;
  %x = call <2 x i8> @returns_non_zero_range_helper_vec()
  %or = or <2 x i8> %y, %x
  %cmp = icmp ne <2 x i8> %or, zeroinitializer
  ret <2 x i1> %cmp
}

define <2 x i1> @neg_range_return_vec(<2 x i8> %y) {
; CHECK-LABEL: @neg_range_return_vec(
; CHECK-NEXT:    [[X:%.*]] = call <2 x i8> @returns_contain_zero_range_helper_vec()
; CHECK-NEXT:    [[OR:%.*]] = or <2 x i8> [[Y:%.*]], [[X]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp ne <2 x i8> [[OR]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[CMP]]
;
  %x = call <2 x i8> @returns_contain_zero_range_helper_vec()
  %or = or <2 x i8> %y, %x
  %cmp = icmp ne <2 x i8> %or, zeroinitializer
  ret <2 x i1> %cmp
}

declare <2 x i8> @returns_i8_helper_vec()

define <2 x i1> @range_call_vec(<2 x i8> %y) {
; CHECK-LABEL: @range_call_vec(
; CHECK-NEXT:    [[X:%.*]] = call range(i8 1, 0) <2 x i8> @returns_i8_helper_vec()
; CHECK-NEXT:    ret <2 x i1> splat (i1 true)
;
  %x = call range(i8 1, 0) <2 x i8> @returns_i8_helper_vec()
  %or = or <2 x i8> %y, %x
  %cmp = icmp ne <2 x i8> %or, zeroinitializer
  ret <2 x i1> %cmp
}

define <2 x i1> @neg_range_call_vec(<2 x i8> %y) {
; CHECK-LABEL: @neg_range_call_vec(
; CHECK-NEXT:    [[X:%.*]] = call range(i8 -1, 1) <2 x i8> @returns_i8_helper_vec()
; CHECK-NEXT:    [[OR:%.*]] = or <2 x i8> [[Y:%.*]], [[X]]
; CHECK-NEXT:    [[CMP:%.*]] = icmp ne <2 x i8> [[OR]], zeroinitializer
; CHECK-NEXT:    ret <2 x i1> [[CMP]]
;
  %x = call range(i8 -1, 1) <2 x i8> @returns_i8_helper_vec()
  %or = or <2 x i8> %y, %x
  %cmp = icmp ne <2 x i8> %or, zeroinitializer
  ret <2 x i1> %cmp
}

define i1 @trunc_nsw_non_zero(i8 %x) {
; CHECK-LABEL: @trunc_nsw_non_zero(
; CHECK-NEXT:    [[X_NE_Z:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NE_Z]])
; CHECK-NEXT:    ret i1 true
;
  %x_ne_z = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %x_ne_z)
  %v = trunc nsw i8 %x to i4
  %r = icmp ne i4 %v, 0
  ret i1 %r
}

define i1 @trunc_nuw_non_zero(i8 %xx) {
; CHECK-LABEL: @trunc_nuw_non_zero(
; CHECK-NEXT:    ret i1 false
;
  %x = add nuw i8 %xx, 1
  %v = trunc nuw i8 %x to i4
  %r = icmp eq i4 %v, 0
  ret i1 %r
}

define i1 @trunc_non_zero_fail(i8 %x) {
; CHECK-LABEL: @trunc_non_zero_fail(
; CHECK-NEXT:    [[X_NE_Z:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[X_NE_Z]])
; CHECK-NEXT:    [[R:%.*]] = trunc i8 [[X]] to i1
; CHECK-NEXT:    ret i1 [[R]]
;
  %x_ne_z = icmp ne i8 %x, 0
  call void @llvm.assume(i1 %x_ne_z)
  %r = trunc i8 %x to i1
  ret i1 %r
}

define i1 @trunc_nsw_nuw_non_zero_fail(i8 %xx) {
; CHECK-LABEL: @trunc_nsw_nuw_non_zero_fail(
; CHECK-NEXT:    [[X:%.*]] = add nsw i8 [[XX:%.*]], 1
; CHECK-NEXT:    [[V:%.*]] = trunc nuw nsw i8 [[X]] to i4
; CHECK-NEXT:    [[R:%.*]] = icmp eq i4 [[V]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x = add nsw i8 %xx, 1
  %v = trunc nsw nuw i8 %x to i4
  %r = icmp eq i4 %v, 0
  ret i1 %r
}

define <4 x i1> @vec_reverse_non_zero(<4 x i8> %xx) {
; CHECK-LABEL: @vec_reverse_non_zero(
; CHECK-NEXT:    ret <4 x i1> zeroinitializer
;
  %x = add nuw <4 x i8> %xx, <i8 1, i8 1, i8 1, i8 1>
  %rev = call <4 x i8> @llvm.vector.reverse(<4 x i8> %x)
  %r = icmp eq <4 x i8> %rev, zeroinitializer
  ret <4 x i1> %r
}

define <4 x i1> @vec_reverse_non_zero_fail(<4 x i8> %xx) {
; CHECK-LABEL: @vec_reverse_non_zero_fail(
; CHECK-NEXT:    [[X:%.*]] = add nuw <4 x i8> [[XX:%.*]], <i8 1, i8 0, i8 1, i8 1>
; CHECK-NEXT:    [[REV:%.*]] = call <4 x i8> @llvm.vector.reverse.v4i8(<4 x i8> [[X]])
; CHECK-NEXT:    [[R:%.*]] = icmp eq <4 x i8> [[REV]], zeroinitializer
; CHECK-NEXT:    ret <4 x i1> [[R]]
;
  %x = add nuw <4 x i8> %xx, <i8 1, i8 0, i8 1, i8 1>
  %rev = call <4 x i8> @llvm.vector.reverse(<4 x i8> %x)
  %r = icmp eq <4 x i8> %rev, zeroinitializer
  ret <4 x i1> %r
}

define i1 @vec_reverse_non_zero_demanded(<4 x i8> %xx) {
; CHECK-LABEL: @vec_reverse_non_zero_demanded(
; CHECK-NEXT:    ret i1 false
;
  %x = add nuw <4 x i8> %xx, <i8 1, i8 0, i8 0, i8 0>
  %rev = call <4 x i8> @llvm.vector.reverse(<4 x i8> %x)
  %ele = extractelement <4 x i8> %rev, i64 3
  %r = icmp eq i8 %ele, 0
  ret i1 %r
}

define i1 @vec_reverse_non_zero_demanded_fail(<4 x i8> %xx) {
; CHECK-LABEL: @vec_reverse_non_zero_demanded_fail(
; CHECK-NEXT:    [[X:%.*]] = add nuw <4 x i8> [[XX:%.*]], <i8 1, i8 0, i8 0, i8 0>
; CHECK-NEXT:    [[REV:%.*]] = call <4 x i8> @llvm.vector.reverse.v4i8(<4 x i8> [[X]])
; CHECK-NEXT:    [[ELE:%.*]] = extractelement <4 x i8> [[REV]], i64 2
; CHECK-NEXT:    [[R:%.*]] = icmp eq i8 [[ELE]], 0
; CHECK-NEXT:    ret i1 [[R]]
;
  %x = add nuw <4 x i8> %xx, <i8 1, i8 0, i8 0, i8 0>
  %rev = call <4 x i8> @llvm.vector.reverse(<4 x i8> %x)
  %ele = extractelement <4 x i8> %rev, i64 2
  %r = icmp eq i8 %ele, 0
  ret i1 %r
}

declare i32 @llvm.experimental.get.vector.length.i32(i32, i32, i1)