1; Test memcmp with 0 size.
2
3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
4; REQUIRES: asserts
5
6declare i32 @memcmp(i8* nocapture, i8* nocapture, i64)
7
8define hidden void @fun() {
9; CHECK-LABEL: fun
10entry:
11  %len = extractvalue [2 x i64] zeroinitializer, 1
12  br i1 undef, label %end, label %call
13
14call:
15  %res = tail call signext i32 @memcmp(i8* noundef undef, i8* noundef undef, i64 noundef %len)
16  unreachable
17
18end:
19  unreachable
20}
21