1; Test that strcmp won't be converted to CLST if calls are
2; marked with nobuiltin, eg. for sanitizers.
3;
4; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5
6declare signext i32 @strcmp(i8 *%src1, i8 *%src2)
7
8; Check a case where the result is used as an integer.
9define i32 @f1(i8 *%src1, i8 *%src2) {
10; CHECK-LABEL: f1:
11; CHECK-NOT: clst
12; CHECK: brasl %r14, strcmp
13; CHECK: br %r14
14  %res = call i32 @strcmp(i8 *%src1, i8 *%src2) nobuiltin
15  ret i32 %res
16}
17
18; Check a case where the result is tested for equality.
19define void @f2(i8 *%src1, i8 *%src2, i32 *%dest) {
20; CHECK-LABEL: f2:
21; CHECK-NOT: clst
22; CHECK: brasl %r14, strcmp
23; CHECK: br %r14
24  %res = call i32 @strcmp(i8 *%src1, i8 *%src2) nobuiltin
25  %cmp = icmp eq i32 %res, 0
26  br i1 %cmp, label %exit, label %store
27
28store:
29  store i32 0, i32 *%dest
30  br label %exit
31
32exit:
33  ret void
34}
35
36; Test a case where the result is used both as an integer and for
37; branching.
38define i32 @f3(i8 *%src1, i8 *%src2, i32 *%dest) {
39; CHECK-LABEL: f3:
40; CHECK-NOT: clst
41; CHECK: brasl %r14, strcmp
42; CHECK: br %r14
43entry:
44  %res = call i32 @strcmp(i8 *%src1, i8 *%src2) nobuiltin
45  %cmp = icmp slt i32 %res, 0
46  br i1 %cmp, label %exit, label %store
47
48store:
49  store i32 0, i32 *%dest
50  br label %exit
51
52exit:
53  ret i32 %res
54}
55