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1; Test the three-operand forms of subtraction.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
4
5; Check SRK.
6define i32 @f1(i32 %a, i32 %b, i32 %c) {
7; CHECK-LABEL: f1:
8; CHECK: srk %r2, %r3, %r4
9; CHECK: br %r14
10  %sub = sub i32 %b, %c
11  ret i32 %sub
12}
13
14; Check that we can still use SR in obvious cases.
15define i32 @f2(i32 %a, i32 %b) {
16; CHECK-LABEL: f2:
17; CHECK: sr %r2, %r3
18; CHECK: br %r14
19  %sub = sub i32 %a, %b
20  ret i32 %sub
21}
22
23; Check SGRK.
24define i64 @f3(i64 %a, i64 %b, i64 %c) {
25; CHECK-LABEL: f3:
26; CHECK: sgrk %r2, %r3, %r4
27; CHECK: br %r14
28  %sub = sub i64 %b, %c
29  ret i64 %sub
30}
31
32; Check that we can still use SGR in obvious cases.
33define i64 @f4(i64 %a, i64 %b) {
34; CHECK-LABEL: f4:
35; CHECK: sgr %r2, %r3
36; CHECK: br %r14
37  %sub = sub i64 %a, %b
38  ret i64 %sub
39}
40