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llvm/llvm/test/Transforms/ConstraintElimination/shl.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)

define i1 @test_shl_const_nuw_unsigned_1(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    ret i1 true
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp ult i8 %start, %high
  ret i1 %t.1
}

define i1 @test_shl_const_nuw_unsigned_2(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    ret i1 true
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %t = icmp ult i8 %start.shl.2, %high
  ret i1 %t
}

define i1 @test_shl_const_nuw_unsigned_3(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_3(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    ret i1 true
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %start.add.1 = add nuw i8 %start, %start
  %t = icmp ule i8 %start.add.1, %start.shl.2
  ret i1 %t
}

define i1 @test_shl_const_nuw_unsigned_4(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_4(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[F:%.*]] = icmp ult i8 [[START_ADD_1]], [[START_SHL_2]]
; CHECK-NEXT:    ret i1 [[F]]
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %start.add.1 = add nuw i8 %start, %start
  %f = icmp ult i8 %start.add.1, %start.shl.2
  ret i1 %f
}


define i1 @test_shl_const_nuw_unsigned_5(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_5(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    ret i1 true
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %t.4 = icmp ule i8 %start.add.2, %start.shl.4
  ret i1 %t.4
}

define i1 @test_shl_const_nuw_unsigned_6(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_6(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[F_2:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_2]]
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %f.2 = icmp ult i8 %start.add.2, %start.shl.4
  ret i1 %f.2
}

define i1 @test_shl_const_nuw_unsigned_7(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_7(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add nuw i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[F_3:%.*]] = icmp ule i8 [[START_ADD_2_1]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_3]]
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %start.add.2.1 = add nuw i8 %start.add.2, 1
  %f.3 = icmp ule i8 %start.add.2.1, %start.shl.4
  ret i1 %f.3
}

define i1 @test_shl_const_nuw_unsigned_8(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_8(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add nuw i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nuw i8 [[START]], 3
; CHECK-NEXT:    ret i1 true
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %start.add.2.1 = add nuw i8 %start.add.2, 1
  %start.shl.3 = shl nuw i8 %start, 3
  %t.5 = icmp ule i8 %start.add.1, %start.shl.3
  ret i1 %t.5
}

define i1 @test_shl_const_nuw_unsigned_9(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_9(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add nuw i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nuw i8 [[START]], 3
; CHECK-NEXT:    [[F_5:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[F_5]]
;
entry:
  %start.shl.4 = shl nuw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %start.add.2.1 = add nuw i8 %start.add.2, 1
  %start.shl.3 = shl nuw i8 %start, 3
  %f.5 = icmp ult i8 %start.add.2, %start.shl.3
  ret i1 %f.5
}

define i1 @test_shl_const_nuw_unsigned_10(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_10(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl nuw i8 [[START:%.*]], 5
; CHECK-NEXT:    [[C_0:%.*]] = icmp ult i8 [[START]], [[START_SHL_5]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nuw i8 [[START]], 3
; CHECK-NEXT:    ret i1 true
;
entry:
  %start.shl.5 = shl nuw i8 %start, 5
  %c.0 = icmp ult i8 %start, %start.shl.5
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl nuw i8 %start, 3
  %t.1 = icmp ule i8 %start.shl.3, %start.shl.5
  ret i1 %t.1
}

define i1 @test_shl_const_nuw_unsigned_11(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_11(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl nuw i8 [[START:%.*]], 5
; CHECK-NEXT:    [[C_0:%.*]] = icmp ult i8 [[START]], [[START_SHL_5]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nuw i8 [[START]], 3
; CHECK-NEXT:    ret i1 false
;
entry:
  %start.shl.5 = shl nuw i8 %start, 5
  %c.0 = icmp ult i8 %start, %start.shl.5
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl nuw i8 %start, 3
  %c.1 = icmp ule i8 %start.shl.5, %start.shl.3
  ret i1 %c.1
}

define i1 @test_shl_const_nuw_unsigned_12(i8 %start) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_12(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START]], [[START_SHL_3]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl nuw i8 [[START]], 5
; CHECK-NEXT:    ret i1 true
;
entry:
  %start.shl.3 = shl nuw i8 %start, 3
  %c.1 = icmp ult i8 %start, %start.shl.3
  call void @llvm.assume(i1 %c.1)

  %start.shl.5 = shl nuw i8 %start, 5
  %t.1 = icmp ule i8 %start.shl.3, %start.shl.5
  ret i1 %t.1
}

define i1 @test_shl_const_nuw_unsigned_13(i8 %start) {
; CHECK-LABEL: @test_shl_const_nuw_unsigned_13(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl i8 [[START:%.*]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START]], [[START_SHL_3]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl i8 [[START]], 5
; CHECK-NEXT:    [[F_1:%.*]] = icmp ule i8 [[START_SHL_5]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[F_1]]
;
entry:
  %start.shl.3 = shl i8 %start, 3
  %c.1 = icmp ult i8 %start, %start.shl.3
  call void @llvm.assume(i1 %c.1)

  %start.shl.5 = shl i8 %start, 5
  %f.1 = icmp ule i8 %start.shl.5, %start.shl.3
  ret i1 %f.1
}

define i1 @test_shl_add_const_nuw_unsigned_1(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nuw_unsigned_1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    ret i1 true
;
entry:
  %add = add nuw i8 %start, 3
  %start.shl.4 = shl nuw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp ult i8 %start, %high
  ret i1 %t.1
}

define i1 @test_shl_add_const_nuw_unsigned_2(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nuw_unsigned_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    ret i1 true
;
entry:
  %add = add nuw i8 %start, 3
  %start.shl.4 = shl nuw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %t.2 = icmp ult i8 %start.shl.2, %high
  ret i1 %t.2
}

define i1 @test_shl_add_const_nuw_unsigned_3(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nuw_unsigned_3(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    ret i1 true
;
entry:
  %add = add nuw i8 %start, 3
  %start.shl.4 = shl nuw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %t.3 = icmp ule i8 %start.add.2, %start.shl.4
  ret i1 %t.3
}

define i1 @test_shl_add_const_nuw_unsigned_4(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nuw_unsigned_4(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nuw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    ret i1 true
;
entry:
  %add = add nuw i8 %start, 3
  %start.shl.4 = shl nuw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nuw i8 %start, 2
  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %t.4 = icmp ult i8 %start.add.2, %start.shl.4
  ret i1 %t.4
}

define i1 @test_shl_add_const_nuw_unsigned_5(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nuw_unsigned_5(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_12:%.*]] = add nuw i8 [[START_ADD_2]], 12
; CHECK-NEXT:    ret i1 true
;
entry:
  %add = add nuw i8 %start, 3
  %start.shl.4 = shl nuw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %start.add.2.12 = add nuw i8 %start.add.2, 12
  %t.5 = icmp ule i8 %start.add.2.12, %start.shl.4
  ret i1 %t.5
}

define i1 @test_shl_add_const_nuw_unsigned_6(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nuw_unsigned_6(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nuw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nuw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nuw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nuw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_13:%.*]] = add nuw i8 [[START_ADD_2]], 13
; CHECK-NEXT:    ret i1 true
;
entry:
  %add = add nuw i8 %start, 3
  %start.shl.4 = shl nuw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nuw i8 %start, %start
  %start.add.2 = add nuw i8 %start.add.1, %start.add.1
  %start.add.2.13 = add nuw i8 %start.add.2, 13
  %f.1 = icmp ule i8 %start.add.2.13, %start.shl.4
  ret i1 %f.1
}

define i1 @test_shl_const_nsw_unsigned_1(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[T_1:%.*]] = icmp ult i8 [[START]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T_1]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp ult i8 %start, %high
  ret i1 %t.1
}

define i1 @test_shl_const_nsw_unsigned_2(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[T:%.*]] = icmp ult i8 [[START_SHL_2]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %t = icmp ult i8 %start.shl.2, %high
  ret i1 %t
}

define i1 @test_shl_const_nsw_unsigned_3(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_3(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[T:%.*]] = icmp ule i8 [[START_ADD_1]], [[START_SHL_2]]
; CHECK-NEXT:    ret i1 [[T]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %start.add.1 = add nsw i8 %start, %start
  %t = icmp ule i8 %start.add.1, %start.shl.2
  ret i1 %t
}


define i1 @test_shl_const_nsw_unsigned_4(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_4(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[F:%.*]] = icmp ult i8 [[START_ADD_1]], [[START_SHL_2]]
; CHECK-NEXT:    ret i1 [[F]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %start.add.1 = add nsw i8 %start, %start
  %f = icmp ult i8 %start.add.1, %start.shl.2
  ret i1 %f
}


define i1 @test_shl_const_nsw_unsigned_5(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_5(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[T_4:%.*]] = icmp ule i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_4]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %t.4 = icmp ule i8 %start.add.2, %start.shl.4
  ret i1 %t.4
}

define i1 @test_shl_const_nsw_unsigned_6(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_6(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[F_2:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_2]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %f.2 = icmp ult i8 %start.add.2, %start.shl.4
  ret i1 %f.2
}

define i1 @test_shl_const_nsw_unsigned_7(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_7(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add nsw i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[F_3:%.*]] = icmp ule i8 [[START_ADD_2_1]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_3]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %start.add.2.1 = add nsw i8 %start.add.2, 1
  %f.3 = icmp ule i8 %start.add.2.1, %start.shl.4
  ret i1 %f.3
}

define i1 @test_shl_const_nsw_unsigned_8(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_8(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add nsw i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nsw i8 [[START]], 3
; CHECK-NEXT:    [[T_5:%.*]] = icmp ule i8 [[START_ADD_1]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[T_5]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %start.add.2.1 = add nsw i8 %start.add.2, 1
  %start.shl.3 = shl nsw i8 %start, 3
  %t.5 = icmp ule i8 %start.add.1, %start.shl.3
  ret i1 %t.5
}

define i1 @test_shl_const_nsw_unsigned_9(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_9(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add nsw i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nsw i8 [[START]], 3
; CHECK-NEXT:    [[F_5:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[F_5]]
;
entry:
  %start.shl.4 = shl nsw i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %start.add.2.1 = add nsw i8 %start.add.2, 1
  %start.shl.3 = shl nsw i8 %start, 3
  %f.5 = icmp ult i8 %start.add.2, %start.shl.3
  ret i1 %f.5
}

define i1 @test_shl_const_nsw_unsigned_10(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_10(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl nsw i8 [[START:%.*]], 5
; CHECK-NEXT:    [[C_0:%.*]] = icmp ult i8 [[START]], [[START_SHL_5]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nsw i8 [[START]], 3
; CHECK-NEXT:    [[T_1:%.*]] = icmp ule i8 [[START_SHL_3]], [[START_SHL_5]]
; CHECK-NEXT:    ret i1 [[T_1]]
;
entry:
  %start.shl.5 = shl nsw i8 %start, 5
  %c.0 = icmp ult i8 %start, %start.shl.5
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl nsw i8 %start, 3
  %t.1 = icmp ule i8 %start.shl.3, %start.shl.5
  ret i1 %t.1
}

define i1 @test_shl_const_nsw_unsigned_11(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_nsw_unsigned_11(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl nsw i8 [[START:%.*]], 5
; CHECK-NEXT:    [[C_0:%.*]] = icmp ult i8 [[START]], [[START_SHL_5]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nsw i8 [[START]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i8 [[START_SHL_5]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[C_1]]
;
entry:
  %start.shl.5 = shl nsw i8 %start, 5
  %c.0 = icmp ult i8 %start, %start.shl.5
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl nsw i8 %start, 3
  %c.1 = icmp ule i8 %start.shl.5, %start.shl.3
  ret i1 %c.1
}

define i1 @test_shl_add_const_nsw_unsigned_1(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nsw_unsigned_1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[T_1:%.*]] = icmp ult i8 [[START]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T_1]]
;
entry:
  %add = add nsw i8 %start, 3
  %start.shl.4 = shl nsw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp ult i8 %start, %high
  ret i1 %t.1
}

define i1 @test_shl_add_const_nsw_unsigned_2(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nsw_unsigned_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[T_2:%.*]] = icmp ult i8 [[START_SHL_2]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T_2]]
;
entry:
  %add = add nsw i8 %start, 3
  %start.shl.4 = shl nsw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %t.2 = icmp ult i8 %start.shl.2, %high
  ret i1 %t.2
}

define i1 @test_shl_add_const_nsw_unsigned_3(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nsw_unsigned_3(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[T_3:%.*]] = icmp ule i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_3]]
;
entry:
  %add = add nsw i8 %start, 3
  %start.shl.4 = shl nsw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %t.3 = icmp ule i8 %start.add.2, %start.shl.4
  ret i1 %t.3
}

define i1 @test_shl_add_const_nsw_unsigned_4(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nsw_unsigned_4(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl nsw i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[T_4:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_4]]
;
entry:
  %add = add nsw i8 %start, 3
  %start.shl.4 = shl nsw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl nsw i8 %start, 2
  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %t.4 = icmp ult i8 %start.add.2, %start.shl.4
  ret i1 %t.4
}

define i1 @test_shl_add_const_nsw_unsigned_5(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nsw_unsigned_5(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_12:%.*]] = add nsw i8 [[START_ADD_2]], 12
; CHECK-NEXT:    [[T_5:%.*]] = icmp ule i8 [[START_ADD_2_12]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_5]]
;
entry:
  %add = add nsw i8 %start, 3
  %start.shl.4 = shl nsw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %start.add.2.12 = add nsw i8 %start.add.2, 12
  %t.5 = icmp ule i8 %start.add.2.12, %start.shl.4
  ret i1 %t.5
}

define i1 @test_shl_add_const_nsw_unsigned_6(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_nsw_unsigned_6(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl nsw i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add nsw i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add nsw i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_13:%.*]] = add nsw i8 [[START_ADD_2]], 13
; CHECK-NEXT:    [[F_1:%.*]] = icmp ule i8 [[START_ADD_2_13]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_1]]
;
entry:
  %add = add nsw i8 %start, 3
  %start.shl.4 = shl nsw i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add nsw i8 %start, %start
  %start.add.2 = add nsw i8 %start.add.1, %start.add.1
  %start.add.2.13 = add nsw i8 %start.add.2, 13
  %f.1 = icmp ule i8 %start.add.2.13, %start.shl.4
  ret i1 %f.1
}

define i1 @test_shl_const_no_nuw_unsigned_1(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[T_1:%.*]] = icmp ult i8 [[START]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T_1]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp ult i8 %start, %high
  ret i1 %t.1
}

define i1 @test_shl_const_no_nuw_unsigned_2(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[T:%.*]] = icmp ult i8 [[START_SHL_2]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %t = icmp ult i8 %start.shl.2, %high
  ret i1 %t
}

define i1 @test_shl_const_no_nuw_unsigned_3(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_3(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[T:%.*]] = icmp ule i8 [[START_ADD_1]], [[START_SHL_2]]
; CHECK-NEXT:    ret i1 [[T]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %start.add.1 = add i8 %start, %start
  %t = icmp ule i8 %start.add.1, %start.shl.2
  ret i1 %t
}


define i1 @test_shl_const_no_nuw_unsigned_4(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_4(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[F:%.*]] = icmp ult i8 [[START_ADD_1]], [[START_SHL_2]]
; CHECK-NEXT:    ret i1 [[F]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %start.add.1 = add i8 %start, %start
  %f = icmp ult i8 %start.add.1, %start.shl.2
  ret i1 %f
}


define i1 @test_shl_const_no_nuw_unsigned_5(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_5(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[T_4:%.*]] = icmp ule i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_4]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %t.4 = icmp ule i8 %start.add.2, %start.shl.4
  ret i1 %t.4
}

define i1 @test_shl_const_no_nuw_unsigned_6(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_6(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[F_2:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_2]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %f.2 = icmp ult i8 %start.add.2, %start.shl.4
  ret i1 %f.2
}

define i1 @test_shl_const_no_nuw_unsigned_7(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_7(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[F_3:%.*]] = icmp ule i8 [[START_ADD_2_1]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_3]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %start.add.2.1 = add i8 %start.add.2, 1
  %f.3 = icmp ule i8 %start.add.2.1, %start.shl.4
  ret i1 %f.3
}

define i1 @test_shl_const_no_nuw_unsigned_8(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_8(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl i8 [[START]], 3
; CHECK-NEXT:    [[T_5:%.*]] = icmp ule i8 [[START_ADD_1]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[T_5]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %start.add.2.1 = add i8 %start.add.2, 1
  %start.shl.3 = shl i8 %start, 3
  %t.5 = icmp ule i8 %start.add.1, %start.shl.3
  ret i1 %t.5
}

define i1 @test_shl_const_no_nuw_unsigned_9(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_9(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[START:%.*]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_1:%.*]] = add i8 [[START_ADD_2]], 1
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl i8 [[START]], 3
; CHECK-NEXT:    [[F_5:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[F_5]]
;
entry:
  %start.shl.4 = shl i8 %start, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %start.add.2.1 = add i8 %start.add.2, 1
  %start.shl.3 = shl i8 %start, 3
  %f.5 = icmp ult i8 %start.add.2, %start.shl.3
  ret i1 %f.5
}

define i1 @test_shl_const_no_nuw_unsigned_10(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_10(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl i8 [[START:%.*]], 5
; CHECK-NEXT:    [[C_0:%.*]] = icmp ult i8 [[START]], [[START_SHL_5]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl i8 [[START]], 3
; CHECK-NEXT:    [[T_1:%.*]] = icmp ule i8 [[START_SHL_3]], [[START_SHL_5]]
; CHECK-NEXT:    ret i1 [[T_1]]
;
entry:
  %start.shl.5 = shl i8 %start, 5
  %c.0 = icmp ult i8 %start, %start.shl.5
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl i8 %start, 3
  %t.1 = icmp ule i8 %start.shl.3, %start.shl.5
  ret i1 %t.1
}

define i1 @test_shl_const_no_nuw_unsigned_11(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_const_no_nuw_unsigned_11(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[START_SHL_5:%.*]] = shl i8 [[START:%.*]], 5
; CHECK-NEXT:    [[C_0:%.*]] = icmp ult i8 [[START]], [[START_SHL_5]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl i8 [[START]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp ule i8 [[START_SHL_5]], [[START_SHL_3]]
; CHECK-NEXT:    ret i1 [[C_1]]
;
entry:
  %start.shl.5 = shl i8 %start, 5
  %c.0 = icmp ult i8 %start, %start.shl.5
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl i8 %start, 3
  %c.1 = icmp ule i8 %start.shl.5, %start.shl.3
  ret i1 %c.1
}

define i1 @test_shl_add_const_no_nuw_unsigned_1(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_no_nuw_unsigned_1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[T_1:%.*]] = icmp ult i8 [[START]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T_1]]
;
entry:
  %add = add i8 %start, 3
  %start.shl.4 = shl i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp ult i8 %start, %high
  ret i1 %t.1
}

define i1 @test_shl_add_const_no_nuw_unsigned_2(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_no_nuw_unsigned_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[T_2:%.*]] = icmp ult i8 [[START_SHL_2]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T_2]]
;
entry:
  %add = add i8 %start, 3
  %start.shl.4 = shl i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %t.2 = icmp ult i8 %start.shl.2, %high
  ret i1 %t.2
}

define i1 @test_shl_add_const_no_nuw_unsigned_3(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_no_nuw_unsigned_3(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[T_3:%.*]] = icmp ule i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_3]]
;
entry:
  %add = add i8 %start, 3
  %start.shl.4 = shl i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %t.3 = icmp ule i8 %start.add.2, %start.shl.4
  ret i1 %t.3
}

define i1 @test_shl_add_const_no_nuw_unsigned_4(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_no_nuw_unsigned_4(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_SHL_2:%.*]] = shl i8 [[START]], 2
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[T_4:%.*]] = icmp ult i8 [[START_ADD_2]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_4]]
;
entry:
  %add = add i8 %start, 3
  %start.shl.4 = shl i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.shl.2 = shl i8 %start, 2
  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %t.4 = icmp ult i8 %start.add.2, %start.shl.4
  ret i1 %t.4
}

define i1 @test_shl_add_const_no_nuw_unsigned_5(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_no_nuw_unsigned_5(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_12:%.*]] = add i8 [[START_ADD_2]], 12
; CHECK-NEXT:    [[T_5:%.*]] = icmp ule i8 [[START_ADD_2_12]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[T_5]]
;
entry:
  %add = add i8 %start, 3
  %start.shl.4 = shl i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %start.add.2.12 = add i8 %start.add.2, 12
  %t.5 = icmp ule i8 %start.add.2.12, %start.shl.4
  ret i1 %t.5
}

define i1 @test_shl_add_const_no_nuw_unsigned_6(i8 %start, i8 %high) {
; CHECK-LABEL: @test_shl_add_const_no_nuw_unsigned_6(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[ADD:%.*]] = add i8 [[START:%.*]], 3
; CHECK-NEXT:    [[START_SHL_4:%.*]] = shl i8 [[ADD]], 4
; CHECK-NEXT:    [[C_1:%.*]] = icmp ult i8 [[START_SHL_4]], [[HIGH:%.*]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_ADD_1:%.*]] = add i8 [[START]], [[START]]
; CHECK-NEXT:    [[START_ADD_2:%.*]] = add i8 [[START_ADD_1]], [[START_ADD_1]]
; CHECK-NEXT:    [[START_ADD_2_13:%.*]] = add i8 [[START_ADD_2]], 13
; CHECK-NEXT:    [[F_1:%.*]] = icmp ule i8 [[START_ADD_2_13]], [[START_SHL_4]]
; CHECK-NEXT:    ret i1 [[F_1]]
;
entry:
  %add = add i8 %start, 3
  %start.shl.4 = shl i8 %add, 4
  %c.1 = icmp ult i8 %start.shl.4, %high
  call void @llvm.assume(i1 %c.1)

  %start.add.1 = add i8 %start, %start
  %start.add.2 = add i8 %start.add.1, %start.add.1
  %start.add.2.13 = add i8 %start.add.2, 13
  %f.1 = icmp ule i8 %start.add.2.13, %start.shl.4
  ret i1 %f.1
}

define i1 @shl_overflow(i64 %start) {
; CHECK-LABEL: @shl_overflow(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[PRE_COND:%.*]] = icmp ugt i64 [[START:%.*]], 0
; CHECK-NEXT:    br i1 [[PRE_COND]], label [[MAIN:%.*]], label [[EXIT:%.*]]
; CHECK:       main:
; CHECK-NEXT:    [[TMP0:%.*]] = shl nuw nsw i64 [[START]], -1
; CHECK-NEXT:    [[TMP1:%.*]] = icmp uge i64 [[TMP0]], [[START]]
; CHECK-NEXT:    ret i1 [[TMP1]]
; CHECK:       exit:
; CHECK-NEXT:    ret i1 false
;
entry:
  %pre.cond = icmp ugt i64 %start, 0
  br i1 %pre.cond, label %main, label %exit

main:
  %0 = shl nuw nsw i64 %start, -1
  %1 = icmp uge i64 %0, %start
  ret i1 %1

exit:
  ret i1 0
}


define i1 @shl_overflow_2() {
; CHECK-LABEL: @shl_overflow_2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[SHL_UB:%.*]] = shl nuw nsw i256 0, 64
; CHECK-NEXT:    [[SHL_CMP:%.*]] = icmp uge i256 [[SHL_UB]], 0
; CHECK-NEXT:    ret i1 [[SHL_CMP]]
;
entry:
  %shl.ub = shl nuw nsw i256 0, 64
  %shl.cmp = icmp uge i256 %shl.ub, 0
  ret i1 %shl.cmp
}

define i1 @shl_overflow_3() {
; CHECK-LABEL: @shl_overflow_3(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[SHL_UB:%.*]] = shl nuw nsw i256 0, 65
; CHECK-NEXT:    [[SHL_CMP:%.*]] = icmp uge i256 [[SHL_UB]], 0
; CHECK-NEXT:    ret i1 [[SHL_CMP]]
;
entry:
  %shl.ub = shl nuw nsw i256 0, 65
  %shl.cmp = icmp uge i256 %shl.ub, 0
  ret i1 %shl.cmp
}

define i1 @shl_55() {
; CHECK-LABEL: @shl_55(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[SHL_UB:%.*]] = shl nuw nsw i256 1, 55
; CHECK-NEXT:    [[SHL_CMP:%.*]] = icmp uge i256 [[SHL_UB]], 1
; CHECK-NEXT:    ret i1 [[SHL_CMP]]
;
entry:
  %shl.ub = shl nuw nsw i256 1, 55
  %shl.cmp = icmp uge i256 %shl.ub, 1
  ret i1 %shl.cmp
}

define i1 @shl_nsw_x8_slt_x7(i8 %start, i8 %high) {
; CHECK-LABEL: @shl_nsw_x8_slt_x7(
; CHECK-NEXT:    [[C_0:%.*]] = icmp sge i8 [[HIGH:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp slt i8 [[START_SHL_3]], [[HIGH]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_MUL_7:%.*]] = mul nsw i8 [[START]], 7
; CHECK-NEXT:    ret i1 true
;
  %c.0 = icmp sge i8 %high, 0
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl nsw i8 %start, 3
  %c.1 = icmp slt i8 %start.shl.3, %high
  call void @llvm.assume(i1 %c.1)

  %start.mul.7 = mul nsw i8 %start, 7
  %t.1 = icmp slt i8 %start.mul.7, %high
  ret i1 %t.1
}

define i1 @shl_nsw_x8_not_slt_x9(i8 %start, i8 %high) {
; CHECK-LABEL: @shl_nsw_x8_not_slt_x9(
; CHECK-NEXT:    [[C_0:%.*]] = icmp sge i8 [[HIGH:%.*]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_0]])
; CHECK-NEXT:    [[START_SHL_3:%.*]] = shl nsw i8 [[START:%.*]], 3
; CHECK-NEXT:    [[C_1:%.*]] = icmp slt i8 [[START_SHL_3]], [[HIGH]]
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[START_MUL_9:%.*]] = mul nsw i8 [[START]], 9
; CHECK-NEXT:    [[T_1:%.*]] = icmp slt i8 [[START_MUL_9]], [[HIGH]]
; CHECK-NEXT:    ret i1 [[T_1]]
;
  %c.0 = icmp sge i8 %high, 0
  call void @llvm.assume(i1 %c.0)

  %start.shl.3 = shl nsw i8 %start, 3
  %c.1 = icmp slt i8 %start.shl.3, %high
  call void @llvm.assume(i1 %c.1)

  %start.mul.9 = mul nsw i8 %start, 9
  %t.1 = icmp slt i8 %start.mul.9, %high
  ret i1 %t.1
}

define i1 @shl_nsw_sign_implication(i8 %x) {
; CHECK-LABEL: @shl_nsw_sign_implication(
; CHECK-NEXT:    [[SHL:%.*]] = shl nsw i8 [[X:%.*]], 2
; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i8 [[X]], 0
; CHECK-NEXT:    br i1 [[CMP1]], label [[IF:%.*]], label [[ELSE:%.*]]
; CHECK:       if:
; CHECK-NEXT:    ret i1 true
; CHECK:       else:
; CHECK-NEXT:    ret i1 true
;
  %shl = shl nsw i8 %x, 2
  %cmp1 = icmp slt i8 %x, 0
  br i1 %cmp1, label %if, label %else

if:
  %cmp2 = icmp slt i8 %shl, 0
  ret i1 %cmp2

else:
  %cmp3 = icmp sge i8 %shl, 0
  ret i1 %cmp3
}

define i1 @shl_nsw_by_bw_minus_1(i64 %x) {
; CHECK-LABEL: @shl_nsw_by_bw_minus_1(
; CHECK-NEXT:    [[X_SHL:%.*]] = shl nsw i64 [[X:%.*]], 63
; CHECK-NEXT:    [[C_1:%.*]] = icmp slt i64 [[X_SHL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[T_1:%.*]] = icmp slt i64 [[X]], 0
; CHECK-NEXT:    ret i1 [[T_1]]
;
  %x.shl = shl nsw i64 %x, 63
  %c.1 = icmp slt i64 %x.shl, 0
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp slt i64 %x, 0
  ret i1 %t.1
}

; Shift returns poison in this case, just make sure we don't crash.
define i1 @shl_nsw_by_bw(i64 %x) {
; CHECK-LABEL: @shl_nsw_by_bw(
; CHECK-NEXT:    [[X_SHL:%.*]] = shl nsw i64 [[X:%.*]], 64
; CHECK-NEXT:    [[C_1:%.*]] = icmp slt i64 [[X_SHL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[T_1:%.*]] = icmp slt i64 [[X]], 0
; CHECK-NEXT:    ret i1 [[T_1]]
;
  %x.shl = shl nsw i64 %x, 64
  %c.1 = icmp slt i64 %x.shl, 0
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp slt i64 %x, 0
  ret i1 %t.1
}

; Shift returns poison in this case, just make sure we don't crash.
define i1 @shl_nsw_by_bw_plus_1(i64 %x) {
; CHECK-LABEL: @shl_nsw_by_bw_plus_1(
; CHECK-NEXT:    [[X_SHL:%.*]] = shl nsw i64 [[X:%.*]], 65
; CHECK-NEXT:    [[C_1:%.*]] = icmp slt i64 [[X_SHL]], 0
; CHECK-NEXT:    call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT:    [[T_1:%.*]] = icmp slt i64 [[X]], 0
; CHECK-NEXT:    ret i1 [[T_1]]
;
  %x.shl = shl nsw i64 %x, 65
  %c.1 = icmp slt i64 %x.shl, 0
  call void @llvm.assume(i1 %c.1)

  %t.1 = icmp slt i64 %x, 0
  ret i1 %t.1
}