test/Transforms/ConstraintElimination/or.ll

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

declare void @use(i1)

define void @test_or_ule(i4 %x, i4 %y, i4 %z, i4 %a) {
; CHECK-LABEL: @test_or_ule(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT:    [[OR:%.*]] = or i1 [[C_1]], [[C_2]]
; CHECK-NEXT:    br i1 [[OR]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    [[C_3:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT:    call void @use(i1 [[C_3]])
; CHECK-NEXT:    [[C_4:%.*]] = icmp ule i4 [[X]], [[A:%.*]]
; CHECK-NEXT:    call void @use(i1 [[C_4]])
; CHECK-NEXT:    ret void
; CHECK:       exit:
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[C_5:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    call void @use(i1 [[C_5]])
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    ret void
;
entry:
  %c.1 = icmp ule i4 %x, %y
  %c.2 = icmp ule i4 %y, %z
  %or = or i1 %c.1, %c.2
  br i1 %or, label %bb1, label %exit

bb1:
  %c.3 = icmp ule i4 %x, %z
  call void @use(i1 %c.3)

  %c.4 = icmp ule i4 %x, %a
  call void @use(i1 %c.4)

  ret void

exit:
  %f.1 = icmp ule i4 %x, %z
  call void @use(i1 %f.1)

  %c.5 = icmp ule i4 %x, %a
  call void @use(i1 %c.5)

  %t.1 = icmp ugt i4 %y, %z
  call void @use(i1 %t.1)

  %t.2 = icmp ugt i4 %x, %y
  call void @use(i1 %t.2)

  %t.3 = icmp ugt i4 %x, %z
  call void @use(i1 %t.3)

  ret void
}

; The result of test_or_ule and test_or_select_ule should be same
define void @test_or_select_ule(i4 %x, i4 %y, i4 %z, i4 %a) {
; CHECK-LABEL: @test_or_select_ule(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT:    [[OR:%.*]] = select i1 [[C_1]], i1 true, i1 [[C_2]]
; CHECK-NEXT:    br i1 [[OR]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    [[C_3:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT:    call void @use(i1 [[C_3]])
; CHECK-NEXT:    [[C_4:%.*]] = icmp ule i4 [[X]], [[A:%.*]]
; CHECK-NEXT:    call void @use(i1 [[C_4]])
; CHECK-NEXT:    ret void
; CHECK:       exit:
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[C_5:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    call void @use(i1 [[C_5]])
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    ret void
;
entry:
  %c.1 = icmp ule i4 %x, %y
  %c.2 = icmp ule i4 %y, %z
  %or = select i1 %c.1, i1 true, i1 %c.2
  br i1 %or, label %bb1, label %exit

bb1:
  %c.3 = icmp ule i4 %x, %z
  call void @use(i1 %c.3)

  %c.4 = icmp ule i4 %x, %a
  call void @use(i1 %c.4)

  ret void

exit:
  %f.1 = icmp ule i4 %x, %z
  call void @use(i1 %f.1)

  %c.5 = icmp ule i4 %x, %a
  call void @use(i1 %c.5)

  %t.1 = icmp ugt i4 %y, %z
  call void @use(i1 %t.1)

  %t.2 = icmp ugt i4 %x, %y
  call void @use(i1 %t.2)

  %t.3 = icmp ugt i4 %x, %z
  call void @use(i1 %t.3)

  ret void
}

define i1 @test_or_chain_ule_1(i4 %x, i4 %y, i4 %z, i4 %a, i4 %b) {
; CHECK-LABEL: @test_or_chain_ule_1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT:    [[C_3:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[C_4:%.*]] = icmp ule i4 2, [[A:%.*]]
; CHECK-NEXT:    [[OR_1:%.*]] = or i1 [[C_1]], [[C_2]]
; CHECK-NEXT:    [[OR_2:%.*]] = or i1 [[OR_1]], [[C_3]]
; CHECK-NEXT:    [[OR_3:%.*]] = or i1 [[C_4]], [[OR_2]]
; CHECK-NEXT:    br i1 [[OR_3]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    [[C_5:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT:    [[C_6:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[C_5]], [[C_6]]
; CHECK-NEXT:    [[C_7:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[C_7]]
; CHECK-NEXT:    ret i1 [[RES_2]]
; CHECK:       exit:
; CHECK-NEXT:    [[RES_3:%.*]] = xor i1 false, false
; CHECK-NEXT:    [[RES_4:%.*]] = xor i1 [[RES_3]], true
; CHECK-NEXT:    [[RES_5:%.*]] = xor i1 [[RES_4]], true
; CHECK-NEXT:    [[RES_6:%.*]] = xor i1 [[RES_5]], true
; CHECK-NEXT:    [[RES_7:%.*]] = xor i1 [[RES_6]], true
; CHECK-NEXT:    [[C_8:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    [[RES_8:%.*]] = xor i1 [[RES_7]], [[C_8]]
; CHECK-NEXT:    [[C_9:%.*]] = icmp ule i4 [[X]], [[B:%.*]]
; CHECK-NEXT:    [[RES_9:%.*]] = xor i1 [[RES_8]], [[C_9]]
; CHECK-NEXT:    ret i1 [[RES_9]]
;
entry:
  %c.1 = icmp ule i4 %x, %y
  %c.2 = icmp ule i4 %y, %z
  %c.3 = icmp ule i4 2, %x
  %c.4 = icmp ule i4 2, %a
  %or.1 = or i1 %c.1, %c.2
  %or.2 = or i1 %or.1, %c.3
  %or.3 = or i1 %c.4, %or.2
  br i1 %or.3, label %bb1, label %exit

bb1:
  %c.5 = icmp ule i4 %x, %z
  %c.6 = icmp ule i4 %x, %a
  %res.1 = xor i1 %c.5, %c.6
  %c.7 = icmp ule i4 2, %x
  %res.2 = xor i1 %res.1, %c.7
  ret i1 %res.2

exit:
  %f.1 = icmp ule i4 %x, %z
  %f.2 = icmp ule i4 2, %x
  %res.3 = xor i1 %f.1, %f.2

  %t.1 = icmp ugt i4 %y, %z
  %res.4 = xor i1 %res.3, %t.1

  %t.2 = icmp ugt i4 %x, %y
  %res.5 = xor i1 %res.4, %t.2

  %t.3 = icmp ugt i4 %x, %z
  %res.6 = xor i1 %res.5, %t.3

  %t.4 = icmp ugt i4 2, %a
  %res.7 = xor i1 %res.6, %t.4

  %c.8 = icmp ule i4 %x, %a
  %res.8 = xor i1 %res.7, %c.8

  %c.9 = icmp ule i4 %x, %b
  %res.9 = xor i1 %res.8, %c.9

  ret i1 %res.9
}

; Same as @test_or_chain_ule_1, but with the `or`s ordered differently.
define i1 @test_or_chain_ule_2(i4 %x, i4 %y, i4 %z, i4 %a, i4 %b) {
; CHECK-LABEL: @test_or_chain_ule_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT:    [[C_3:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[C_4:%.*]] = icmp ule i4 2, [[A:%.*]]
; CHECK-NEXT:    [[OR_1:%.*]] = or i1 [[C_1]], [[C_2]]
; CHECK-NEXT:    [[OR_2:%.*]] = or i1 [[C_3]], [[C_4]]
; CHECK-NEXT:    [[OR_3:%.*]] = or i1 [[OR_1]], [[OR_2]]
; CHECK-NEXT:    br i1 [[OR_3]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    [[C_5:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT:    [[C_6:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[C_5]], [[C_6]]
; CHECK-NEXT:    [[C_7:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[C_7]]
; CHECK-NEXT:    ret i1 [[RES_2]]
; CHECK:       exit:
; CHECK-NEXT:    [[RES_3:%.*]] = xor i1 false, false
; CHECK-NEXT:    [[RES_4:%.*]] = xor i1 [[RES_3]], true
; CHECK-NEXT:    [[RES_5:%.*]] = xor i1 [[RES_4]], true
; CHECK-NEXT:    [[RES_6:%.*]] = xor i1 [[RES_5]], true
; CHECK-NEXT:    [[RES_7:%.*]] = xor i1 [[RES_6]], true
; CHECK-NEXT:    [[C_8:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    [[RES_8:%.*]] = xor i1 [[RES_7]], [[C_8]]
; CHECK-NEXT:    [[C_9:%.*]] = icmp ule i4 [[X]], [[B:%.*]]
; CHECK-NEXT:    [[RES_9:%.*]] = xor i1 [[RES_8]], [[C_9]]
; CHECK-NEXT:    ret i1 [[RES_9]]
;
entry:
  %c.1 = icmp ule i4 %x, %y
  %c.2 = icmp ule i4 %y, %z
  %c.3 = icmp ule i4 2, %x
  %c.4 = icmp ule i4 2, %a
  %or.1 = or i1 %c.1, %c.2
  %or.2 = or i1 %c.3, %c.4
  %or.3 = or i1 %or.1, %or.2
  br i1 %or.3, label %bb1, label %exit

bb1:
  %c.5 = icmp ule i4 %x, %z
  %c.6 = icmp ule i4 %x, %a
  %res.1 = xor i1 %c.5, %c.6
  %c.7 = icmp ule i4 2, %x
  %res.2 = xor i1 %res.1, %c.7
  ret i1 %res.2

exit:
  %f.1 = icmp ule i4 %x, %z
  %f.2 = icmp ule i4 2, %x
  %res.3 = xor i1 %f.1, %f.2

  %t.1 = icmp ugt i4 %y, %z
  %res.4 = xor i1 %res.3, %t.1

  %t.2 = icmp ugt i4 %x, %y
  %res.5 = xor i1 %res.4, %t.2

  %t.3 = icmp ugt i4 %x, %z
  %res.6 = xor i1 %res.5, %t.3

  %t.4 = icmp ugt i4 2, %a
  %res.7 = xor i1 %res.6, %t.4

  %c.8 = icmp ule i4 %x, %a
  %res.8 = xor i1 %res.7, %c.8

  %c.9 = icmp ule i4 %x, %b
  %res.9 = xor i1 %res.8, %c.9

  ret i1 %res.9
}

declare i1 @cond() readnone

; Test with `or` chain that also contains instructions other than `or` and `icmp`.
define i1 @test_or_chain_with_other_conds_ule(i4 %x, i4 %y, i4 %z, i4 %a, i1 %arg.c) {
; CHECK-LABEL: @test_or_chain_with_other_conds_ule(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT:    [[C_3:%.*]] = call i1 @cond()
; CHECK-NEXT:    [[OR_1:%.*]] = or i1 [[C_1]], [[C_2]]
; CHECK-NEXT:    [[OR_2:%.*]] = or i1 [[C_3]], [[OR_1]]
; CHECK-NEXT:    [[OR_3:%.*]] = or i1 [[OR_2]], [[ARG_C:%.*]]
; CHECK-NEXT:    br i1 [[OR_3]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    [[C_5:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT:    [[C_6:%.*]] = icmp ule i4 [[X]], [[A:%.*]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[C_5]], [[C_6]]
; CHECK-NEXT:    [[C_7:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[C_7]]
; CHECK-NEXT:    ret i1 [[RES_2]]
; CHECK:       exit:
; CHECK-NEXT:    [[RES_3:%.*]] = xor i1 false, true
; CHECK-NEXT:    [[RES_4:%.*]] = xor i1 [[RES_3]], true
; CHECK-NEXT:    [[RES_5:%.*]] = xor i1 [[RES_4]], true
; CHECK-NEXT:    [[C_8:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    [[RES_6:%.*]] = xor i1 [[RES_5]], [[C_8]]
; CHECK-NEXT:    ret i1 [[RES_6]]
;
entry:
  %c.1 = icmp ule i4 %x, %y
  %c.2 = icmp ule i4 %y, %z
  %c.3 = call i1 @cond()
  %or.1 = or i1 %c.1, %c.2
  %or.2 = or i1 %c.3, %or.1
  %or.3 = or i1 %or.2, %arg.c
  br i1 %or.3, label %bb1, label %exit

bb1:
  %c.5 = icmp ule i4 %x, %z
  %c.6 = icmp ule i4 %x, %a
  %res.1 = xor i1 %c.5, %c.6
  %c.7 = icmp ule i4 2, %x
  %res.2 = xor i1 %res.1, %c.7
  ret i1 %res.2

exit:
  %f.1 = icmp ule i4 %x, %z

  %t.1 = icmp ugt i4 %y, %z
  %res.3 = xor i1 %f.1, %t.1

  %t.2 = icmp ugt i4 %x, %y
  %res.4 = xor i1 %res.3, %t.2

  %t.3 = icmp ugt i4 %x, %z
  %res.5 = xor i1 %res.4, %t.3

  %c.8 = icmp ule i4 %x, %a
  %res.6 = xor i1 %res.5, %c.8

  ret i1 %res.6
}

define i1 @test_or_chain_with_and_ule(i4 %x, i4 %y, i4 %z, i4 %a, i4 %b) {
; CHECK-LABEL: @test_or_chain_with_and_ule(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i4 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[C_2:%.*]] = icmp ule i4 [[Y]], [[Z:%.*]]
; CHECK-NEXT:    [[C_3:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[C_4:%.*]] = icmp ule i4 2, [[A:%.*]]
; CHECK-NEXT:    [[OR_1:%.*]] = or i1 [[C_1]], [[C_2]]
; CHECK-NEXT:    [[AND_2:%.*]] = and i1 [[C_3]], [[C_4]]
; CHECK-NEXT:    [[OR_3:%.*]] = or i1 [[OR_1]], [[AND_2]]
; CHECK-NEXT:    br i1 [[OR_3]], label [[BB1:%.*]], label [[EXIT:%.*]]
; CHECK:       bb1:
; CHECK-NEXT:    [[C_5:%.*]] = icmp ule i4 [[X]], [[Z]]
; CHECK-NEXT:    [[C_6:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    [[RES_1:%.*]] = xor i1 [[C_5]], [[C_6]]
; CHECK-NEXT:    [[C_7:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[RES_2:%.*]] = xor i1 [[RES_1]], [[C_7]]
; CHECK-NEXT:    ret i1 [[RES_2]]
; CHECK:       exit:
; CHECK-NEXT:    [[RES_3:%.*]] = xor i1 false, true
; CHECK-NEXT:    [[RES_4:%.*]] = xor i1 [[RES_3]], true
; CHECK-NEXT:    [[RES_5:%.*]] = xor i1 [[RES_4]], true
; CHECK-NEXT:    [[C_8:%.*]] = icmp ule i4 [[X]], [[A]]
; CHECK-NEXT:    [[RES_6:%.*]] = xor i1 [[RES_5]], [[C_8]]
; CHECK-NEXT:    [[C_9:%.*]] = icmp ule i4 [[X]], [[B:%.*]]
; CHECK-NEXT:    [[RES_7:%.*]] = xor i1 [[RES_6]], [[C_9]]
; CHECK-NEXT:    [[C_10:%.*]] = icmp ule i4 2, [[X]]
; CHECK-NEXT:    [[RES_8:%.*]] = xor i1 [[RES_7]], [[C_10]]
; CHECK-NEXT:    [[C_11:%.*]] = icmp ugt i4 2, [[A]]
; CHECK-NEXT:    [[RES_9:%.*]] = xor i1 [[RES_8]], [[C_11]]
; CHECK-NEXT:    ret i1 [[RES_9]]
;
entry:
  %c.1 = icmp ule i4 %x, %y
  %c.2 = icmp ule i4 %y, %z
  %c.3 = icmp ule i4 2, %x
  %c.4 = icmp ule i4 2, %a
  %or.1 = or i1 %c.1, %c.2
  %and.2 = and i1 %c.3, %c.4
  %or.3 = or i1 %or.1, %and.2
  br i1 %or.3, label %bb1, label %exit

bb1:
  %c.5 = icmp ule i4 %x, %z
  %c.6 = icmp ule i4 %x, %a
  %res.1 = xor i1 %c.5, %c.6
  %c.7 = icmp ule i4 2, %x
  %res.2 = xor i1 %res.1, %c.7
  ret i1 %res.2

exit:
  %f.1 = icmp ule i4 %x, %z
  %t.1 = icmp ugt i4 %y, %z
  %res.3 = xor i1 %f.1, %t.1

  %t.2 = icmp ugt i4 %x, %y
  %res.4 = xor i1 %res.3, %t.2

  %t.3 = icmp ugt i4 %x, %z
  %res.5 = xor i1 %res.4, %t.3

  %c.8 = icmp ule i4 %x, %a
  %res.6 = xor i1 %res.5, %c.8

  %c.9 = icmp ule i4 %x, %b
  %res.7 = xor i1 %res.6, %c.9

  %c.10 = icmp ule i4 2, %x
  %res.8 = xor i1 %res.7, %c.10

  %c.11 = icmp ugt i4 2, %a
  %res.9 = xor i1 %res.8, %c.11

  ret i1 %res.9
}

define void @test_or_as_add_ult(i8 %init_val, i8 %high) {
; CHECK-LABEL: @test_or_as_add_ult(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START:%.*]] = shl nuw nsw i8 [[INIT_VAL:%.*]], 2
; CHECK-NEXT:    [[START_PLUS_3:%.*]] = add nuw i8 [[START]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp uge i8 [[START_PLUS_3]], [[HIGH:%.*]]
; CHECK-NEXT:    br i1 [[C_1]], label [[THEN:%.*]], label [[END:%.*]]
; CHECK:       then:
; CHECK-NEXT:    [[F_0:%.*]] = icmp ult i8 [[START]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_0]])
; CHECK-NEXT:    [[I_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    [[F_1:%.*]] = icmp ult i8 [[I_1]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_1]])
; CHECK-NEXT:    [[I_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    [[F_2:%.*]] = icmp ult i8 [[I_2]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_2]])
; CHECK-NEXT:    ret void
; CHECK:       end:
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_3:%.*]] = or i8 [[START]], 3
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_4:%.*]] = or i8 [[START]], 4
; CHECK-NEXT:    [[C_4:%.*]] = icmp ult i8 [[START_4]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[C_4]])
; CHECK-NEXT:    ret void
;
entry:
  %start = shl nuw nsw i8 %init_val, 2
  %start.plus.3 = add nuw i8 %start, 3
  %c.1 = icmp uge i8 %start.plus.3, %high
  br i1 %c.1, label %then, label %end

then:                                          ; preds = %entry
  %f.0 = icmp ult i8 %start, %high
  call void @use(i1 %f.0)
  %i.1 = or i8 %start, 1
  %f.1 = icmp ult i8 %i.1, %high
  call void @use(i1 %f.1)
  %i.2 = or i8 %start, 2
  %f.2 = icmp ult i8 %i.2, %high
  call void @use(i1 %f.2)
  ret void

end:                                           ; preds = %entry
  %t.0 = icmp ult i8 %start, %high
  call void @use(i1 %t.0)
  %start.1 = or i8 %start, 1
  %t.1 = icmp ult i8 %start.1, %high
  call void @use(i1 %t.1)
  %start.2 = or i8 %start, 2
  %t.2 = icmp ult i8 %start.2, %high
  call void @use(i1 %t.2)
  %start.3 = or i8 %start, 3
  %t.3 = icmp ult i8 %start.3, %high
  call void @use(i1 %t.3)
  %start.4 = or i8 %start, 4
  %c.4 = icmp ult i8 %start.4, %high
  call void @use(i1 %c.4)
  ret void
}

define void @test_or_as_add_ule(i8 %init_val, i8 %high) {
; CHECK-LABEL: @test_or_as_add_ule(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START:%.*]] = shl nuw nsw i8 [[INIT_VAL:%.*]], 2
; CHECK-NEXT:    [[START_PLUS_3:%.*]] = add nuw i8 [[START]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp uge i8 [[START_PLUS_3]], [[HIGH:%.*]]
; CHECK-NEXT:    br i1 [[C_1]], label [[THEN:%.*]], label [[END:%.*]]
; CHECK:       then:
; CHECK-NEXT:    [[F_0:%.*]] = icmp ule i8 [[START]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_0]])
; CHECK-NEXT:    [[I_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    [[F_1:%.*]] = icmp ule i8 [[I_1]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_1]])
; CHECK-NEXT:    [[I_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    [[F_2:%.*]] = icmp ule i8 [[I_2]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_2]])
; CHECK-NEXT:    ret void
; CHECK:       end:
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_3:%.*]] = or i8 [[START]], 3
; CHECK-NEXT:    call void @use(i1 true)
; CHECK-NEXT:    [[START_4:%.*]] = or i8 [[START]], 4
; CHECK-NEXT:    [[T_4:%.*]] = icmp ule i8 [[START_4]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_4]])
; CHECK-NEXT:    [[START_5:%.*]] = or i8 [[START]], 5
; CHECK-NEXT:    [[C_5:%.*]] = icmp ule i8 [[START_5]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[C_5]])
; CHECK-NEXT:    ret void
;
entry:
  %start = shl nuw nsw i8 %init_val, 2
  %start.plus.3 = add nuw i8 %start, 3
  %c.1 = icmp uge i8 %start.plus.3, %high
  br i1 %c.1, label %then, label %end

then:                                          ; preds = %entry
  %f.0 = icmp ule i8 %start, %high
  call void @use(i1 %f.0)
  %i.1 = or i8 %start, 1
  %f.1 = icmp ule i8 %i.1, %high
  call void @use(i1 %f.1)
  %i.2 = or i8 %start, 2
  %f.2 = icmp ule i8 %i.2, %high
  call void @use(i1 %f.2)
  ret void

end:                                           ; preds = %entry
  %t.0 = icmp ule i8 %start, %high
  call void @use(i1 %t.0)
  %start.1 = or i8 %start, 1
  %t.1 = icmp ule i8 %start.1, %high
  call void @use(i1 %t.1)
  %start.2 = or i8 %start, 2
  %t.2 = icmp ule i8 %start.2, %high
  call void @use(i1 %t.2)
  %start.3 = or i8 %start, 3
  %t.3 = icmp ule i8 %start.3, %high
  call void @use(i1 %t.3)
  %start.4 = or i8 %start, 4
  %t.4 = icmp ule i8 %start.4, %high
  call void @use(i1 %t.4)
  %start.5 = or i8 %start, 5
  %c.5 = icmp ule i8 %start.5, %high
  call void @use(i1 %c.5)

  ret void
}

define void @test_or_as_add_ugt(i8 %init_val, i8 %high) {
; CHECK-LABEL: @test_or_as_add_ugt(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START:%.*]] = shl nuw nsw i8 [[INIT_VAL:%.*]], 2
; CHECK-NEXT:    [[START_PLUS_3:%.*]] = add nuw i8 [[START]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp uge i8 [[START_PLUS_3]], [[HIGH:%.*]]
; CHECK-NEXT:    br i1 [[C_1]], label [[THEN:%.*]], label [[END:%.*]]
; CHECK:       then:
; CHECK-NEXT:    [[T_0:%.*]] = icmp ugt i8 [[START]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_0]])
; CHECK-NEXT:    [[I_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    [[T_1:%.*]] = icmp ugt i8 [[I_1]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_1]])
; CHECK-NEXT:    [[I_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    [[T_2:%.*]] = icmp ugt i8 [[I_2]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_2]])
; CHECK-NEXT:    ret void
; CHECK:       end:
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_3:%.*]] = or i8 [[START]], 3
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_4:%.*]] = or i8 [[START]], 4
; CHECK-NEXT:    [[F_4:%.*]] = icmp ugt i8 [[START_4]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_4]])
; CHECK-NEXT:    [[START_5:%.*]] = or i8 [[START]], 5
; CHECK-NEXT:    [[C_5:%.*]] = icmp ugt i8 [[START_5]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[C_5]])
; CHECK-NEXT:    ret void
;
entry:
  %start = shl nuw nsw i8 %init_val, 2
  %start.plus.3 = add nuw i8 %start, 3
  %c.1 = icmp uge i8 %start.plus.3, %high
  br i1 %c.1, label %then, label %end

then:                                          ; preds = %entry
  %t.0 = icmp ugt i8 %start, %high
  call void @use(i1 %t.0)
  %i.1 = or i8 %start, 1
  %t.1 = icmp ugt i8 %i.1, %high
  call void @use(i1 %t.1)
  %i.2 = or i8 %start, 2
  %t.2 = icmp ugt i8 %i.2, %high
  call void @use(i1 %t.2)
  ret void

end:                                           ; preds = %entry
  %f.0 = icmp ugt i8 %start, %high
  call void @use(i1 %f.0)
  %start.1 = or i8 %start, 1
  %f.1 = icmp ugt i8 %start.1, %high
  call void @use(i1 %f.1)
  %start.2 = or i8 %start, 2
  %f.2 = icmp ugt i8 %start.2, %high
  call void @use(i1 %f.2)
  %start.3 = or i8 %start, 3
  %f.3 = icmp ugt i8 %start.3, %high
  call void @use(i1 %f.3)
  %start.4 = or i8 %start, 4
  %f.4 = icmp ugt i8 %start.4, %high
  call void @use(i1 %f.4)
  %start.5 = or i8 %start, 5
  %c.5 = icmp ugt i8 %start.5, %high
  call void @use(i1 %c.5)
  ret void
}

define void @test_or_as_add_uge(i8 %init_val, i8 %high) {
; CHECK-LABEL: @test_or_as_add_uge(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START:%.*]] = shl nuw nsw i8 [[INIT_VAL:%.*]], 2
; CHECK-NEXT:    [[START_PLUS_3:%.*]] = add nuw i8 [[START]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp uge i8 [[START_PLUS_3]], [[HIGH:%.*]]
; CHECK-NEXT:    br i1 [[C_1]], label [[THEN:%.*]], label [[END:%.*]]
; CHECK:       then:
; CHECK-NEXT:    [[T_0:%.*]] = icmp ugt i8 [[START]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_0]])
; CHECK-NEXT:    [[I_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    [[T_1:%.*]] = icmp uge i8 [[I_1]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_1]])
; CHECK-NEXT:    [[I_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    [[T_2:%.*]] = icmp uge i8 [[I_2]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_2]])
; CHECK-NEXT:    ret void
; CHECK:       end:
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_3:%.*]] = or i8 [[START]], 3
; CHECK-NEXT:    call void @use(i1 false)
; CHECK-NEXT:    [[START_4:%.*]] = or i8 [[START]], 4
; CHECK-NEXT:    [[C_4:%.*]] = icmp uge i8 [[START_4]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[C_4]])
; CHECK-NEXT:    [[START_5:%.*]] = or i8 [[START]], 5
; CHECK-NEXT:    [[C_5:%.*]] = icmp uge i8 [[START_5]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[C_5]])
; CHECK-NEXT:    ret void
;
entry:
  %start = shl nuw nsw i8 %init_val, 2
  %start.plus.3 = add nuw i8 %start, 3
  %c.1 = icmp uge i8 %start.plus.3, %high
  br i1 %c.1, label %then, label %end

then:                                          ; preds = %entry
  %t.0 = icmp ugt i8 %start, %high
  call void @use(i1 %t.0)
  %i.1 = or i8 %start, 1
  %t.1 = icmp uge i8 %i.1, %high
  call void @use(i1 %t.1)
  %i.2 = or i8 %start, 2
  %t.2 = icmp uge i8 %i.2, %high
  call void @use(i1 %t.2)
  ret void

end:                                           ; preds = %entry
  %f.0 = icmp ugt i8 %start, %high
  call void @use(i1 %f.0)
  %start.1 = or i8 %start, 1
  %f.1 = icmp uge i8 %start.1, %high
  call void @use(i1 %f.1)
  %start.2 = or i8 %start, 2
  %f.2 = icmp uge i8 %start.2, %high
  call void @use(i1 %f.2)
  %start.3 = or i8 %start, 3
  %f.3 = icmp uge i8 %start.3, %high
  call void @use(i1 %f.3)
  %start.4 = or i8 %start, 4
  %c.4 = icmp uge i8 %start.4, %high
  call void @use(i1 %c.4)
  %start.5 = or i8 %start, 5
  %c.5 = icmp uge i8 %start.5, %high
  call void @use(i1 %c.5)
  ret void
}

define void @test_not_decompose(i8 %start, i8 %high) {
; CHECK-LABEL: @test_not_decompose(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_PLUS_3:%.*]] = add nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp uge i8 [[START_PLUS_3]], [[HIGH:%.*]]
; CHECK-NEXT:    br i1 [[C_1]], label [[THEN:%.*]], label [[END:%.*]]
; CHECK:       then:
; CHECK-NEXT:    [[I_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    [[T_1:%.*]] = icmp uge i8 [[I_1]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_1]])
; CHECK-NEXT:    [[I_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    [[T_2:%.*]] = icmp uge i8 [[I_2]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[T_2]])
; CHECK-NEXT:    ret void
; CHECK:       end:
; CHECK-NEXT:    [[START_1:%.*]] = or i8 [[START]], 1
; CHECK-NEXT:    [[F_1:%.*]] = icmp uge i8 [[START_1]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_1]])
; CHECK-NEXT:    [[START_2:%.*]] = or i8 [[START]], 2
; CHECK-NEXT:    [[F_2:%.*]] = icmp uge i8 [[START_2]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_2]])
; CHECK-NEXT:    [[START_3:%.*]] = or i8 [[START]], 3
; CHECK-NEXT:    [[F_3:%.*]] = icmp uge i8 [[START_3]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[F_3]])
; CHECK-NEXT:    [[START_4:%.*]] = or i8 [[START]], 4
; CHECK-NEXT:    [[C_4:%.*]] = icmp uge i8 [[START_4]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[C_4]])
; CHECK-NEXT:    [[START_5:%.*]] = or i8 [[START]], 5
; CHECK-NEXT:    [[C_5:%.*]] = icmp uge i8 [[START_5]], [[HIGH]]
; CHECK-NEXT:    call void @use(i1 [[C_5]])
; CHECK-NEXT:    ret void
;
entry:
  %start.plus.3 = add nuw i8 %start, 3
  %c.1 = icmp uge i8 %start.plus.3, %high
  br i1 %c.1, label %then, label %end

then:                                          ; preds = %entry
  %i.1 = or i8 %start, 1
  %t.1 = icmp uge i8 %i.1, %high
  call void @use(i1 %t.1)
  %i.2 = or i8 %start, 2
  %t.2 = icmp uge i8 %i.2, %high
  call void @use(i1 %t.2)
  ret void

end:                                           ; preds = %entry
  %start.1 = or i8 %start, 1
  %f.1 = icmp uge i8 %start.1, %high
  call void @use(i1 %f.1)
  %start.2 = or i8 %start, 2
  %f.2 = icmp uge i8 %start.2, %high
  call void @use(i1 %f.2)
  %start.3 = or i8 %start, 3
  %f.3 = icmp uge i8 %start.3, %high
  call void @use(i1 %f.3)
  %start.4 = or i8 %start, 4
  %c.4 = icmp uge i8 %start.4, %high
  call void @use(i1 %c.4)
  %start.5 = or i8 %start, 5
  %c.5 = icmp uge i8 %start.5, %high
  call void @use(i1 %c.5)

  ret void
}