; RUN: llc -mtriple=x86_64-linux -fast-isel -show-mc-encoding < %s | FileCheck %s
; pr22854
; CHECK: addl $42, %esi # encoding: [0x83,0xc6,0x2a]
define void @foo(i32 *%s, i32 %x) {
%y = add nsw i32 %x, 42
store i32 %y, i32* %s, align 4
ret void
}