1; Test LOCR and LOCGR.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
4
5; Test LOCR.
6define i32 @f1(i32 %a, i32 %b, i32 %limit) {
7; CHECK-LABEL: f1:
8; CHECK: clfi %r4, 42
9; CHECK: locrhe %r2, %r3
10; CHECK: br %r14
11  %cond = icmp ult i32 %limit, 42
12  %res = select i1 %cond, i32 %a, i32 %b
13  ret i32 %res
14}
15
16; Test LOCGR.
17define i64 @f2(i64 %a, i64 %b, i64 %limit) {
18; CHECK-LABEL: f2:
19; CHECK: clgfi %r4, 42
20; CHECK: locgrhe %r2, %r3
21; CHECK: br %r14
22  %cond = icmp ult i64 %limit, 42
23  %res = select i1 %cond, i64 %a, i64 %b
24  ret i64 %res
25}
26
27; Test LOCR in a case that could use COMPARE AND BRANCH.  We prefer using
28; LOCR if possible.
29define i32 @f3(i32 %a, i32 %b, i32 %limit) {
30; CHECK-LABEL: f3:
31; CHECK: chi %r4, 42
32; CHECK: locrlh %r2, %r3
33; CHECK: br %r14
34  %cond = icmp eq i32 %limit, 42
35  %res = select i1 %cond, i32 %a, i32 %b
36  ret i32 %res
37}
38
39; ...and again for LOCGR.
40define i64 @f4(i64 %a, i64 %b, i64 %limit) {
41; CHECK-LABEL: f4:
42; CHECK: cghi %r4, 42
43; CHECK: locgrlh %r2, %r3
44; CHECK: br %r14
45  %cond = icmp eq i64 %limit, 42
46  %res = select i1 %cond, i64 %a, i64 %b
47  ret i64 %res
48}
49