; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
;RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mattr=slow-incdec | FileCheck %s

@var_21 = external dso_local constant i32, align 4
@var_29 = external dso_local constant i8, align 1
@var_390 = external dso_local global i32, align 4
@var_11 = external dso_local constant i8, align 1
@var_370 = external dso_local global i8, align 1

; Function Attrs: noinline nounwind optnone uwtable
define void @_Z3foov() {
; CHECK-LABEL: _Z3foov:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    movsbl {{.*}}(%rip), %eax
; CHECK-NEXT:    negl %eax
; CHECK-NEXT:    xorl %ecx, %ecx
; CHECK-NEXT:    cmpl %eax, {{.*}}(%rip)
; CHECK-NEXT:    setb %cl
; CHECK-NEXT:    movl %ecx, {{.*}}(%rip)
; CHECK-NEXT:    movb {{.*}}(%rip), %al
; CHECK-NEXT:    movb %al, {{.*}}(%rip)
; CHECK-NEXT:    retq
entry:
  %0 = load i32, i32* @var_21, align 4
  %1 = load i8, i8* @var_29, align 1
  %conv = sext i8 %1 to i32
  %sub = sub nsw i32 0, %conv
  %cmp = icmp ult i32 %0, %sub
  %conv1 = zext i1 %cmp to i32
  %add = add nsw i32 %conv1, -1
  %conv2 = trunc i32 %add to i8
  %tobool = icmp ne i8 %conv2, 0
  %lnot = xor i1 %tobool, true
  %conv3 = zext i1 %lnot to i32
  store i32 %conv3, i32* @var_390, align 4
  %2 = load i8, i8* @var_11, align 1
  %conv4 = sext i8 %2 to i16
  %conv5 = trunc i16 %conv4 to i8
  store i8 %conv5, i8* @var_370, align 1
  ret void
}