Add test case for PR22473
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown | FileCheck %s --check-prefixes=X86
; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s --check-prefixes=X64

define zeroext i1 @PR22473(i8*, i8) {
; X86-LABEL: PR22473:
; X86:       # %bb.0:
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movb (%eax), %al
; X86-NEXT:    cmpb {{[0-9]+}}(%esp), %al
; X86-NEXT:    sete %al
; X86-NEXT:    retl
;
; X64-LABEL: PR22473:
; X64:       # %bb.0:
; X64-NEXT:    cmpb %sil, (%rdi)
; X64-NEXT:    sete %al
; X64-NEXT:    retq
  %3 = load i8, i8* %0, align 1
  %4 = icmp eq i8 %3, %1
  ret i1 %4
}