1; Test incoming GPR, FPR and stack arguments when no extension type is given.
2; This type of argument is used for passing structures, etc.
3;
4; RUN: llc < %s -mtriple=s390x-linux-gnu -verify-machineinstrs | FileCheck %s
5
6; Do some arithmetic so that we can see the register being used.
7define i8 @f1(i8 %r2) {
8; CHECK-LABEL: f1:
9; CHECK: ahi %r2, 1
10; CHECK: br %r14
11  %y = add i8 %r2, 1
12  ret i8 %y
13}
14
15define i16 @f2(i8 %r2, i16 %r3) {
16; CHECK-LABEL: f2:
17; CHECK: {{lr|lgr}} %r2, %r3
18; CHECK: br %r14
19  ret i16 %r3
20}
21
22define i32 @f3(i8 %r2, i16 %r3, i32 %r4) {
23; CHECK-LABEL: f3:
24; CHECK: {{lr|lgr}} %r2, %r4
25; CHECK: br %r14
26  ret i32 %r4
27}
28
29define i64 @f4(i8 %r2, i16 %r3, i32 %r4, i64 %r5) {
30; CHECK-LABEL: f4:
31; CHECK: {{lr|lgr}} %r2, %r5
32; CHECK: br %r14
33  ret i64 %r5
34}
35
36; Do some arithmetic so that we can see the register being used.
37define float @f5(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0) {
38; CHECK-LABEL: f5:
39; CHECK: aebr %f0, %f0
40; CHECK: br %r14
41  %y = fadd float %f0, %f0
42  ret float %y
43}
44
45define double @f6(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2) {
46; CHECK-LABEL: f6:
47; CHECK: ldr %f0, %f2
48; CHECK: br %r14
49  ret double %f2
50}
51
52; fp128s are passed indirectly.  Do some arithmetic so that the value
53; must be interpreted as a float, rather than as a block of memory to
54; be copied.
55define void @f7(fp128 *%r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
56                fp128 %r6) {
57; CHECK-LABEL: f7:
58; CHECK: ld %f0, 0(%r6)
59; CHECK: ld %f2, 8(%r6)
60; CHECK: axbr %f0, %f0
61; CHECK: std %f0, 0(%r2)
62; CHECK: std %f2, 8(%r2)
63; CHECK: br %r14
64  %y = fadd fp128 %r6, %r6
65  store fp128 %y, fp128 *%r2
66  ret void
67}
68
69define i64 @f8(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
70               fp128 %r6, i64 %s1) {
71; CHECK-LABEL: f8:
72; CHECK: lg %r2, 160(%r15)
73; CHECK: br %r14
74  ret i64 %s1
75}
76
77define float @f9(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
78                 fp128 %r6, i64 %s1, float %f4) {
79; CHECK-LABEL: f9:
80; CHECK: ler %f0, %f4
81; CHECK: br %r14
82  ret float %f4
83}
84
85define double @f10(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
86                   fp128 %r6, i64 %s1, float %f4, double %f6) {
87; CHECK-LABEL: f10:
88; CHECK: ldr %f0, %f6
89; CHECK: br %r14
90  ret double %f6
91}
92
93define i64 @f11(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
94                fp128 %r6, i64 %s1, float %f4, double %f6, i64 %s2) {
95; CHECK-LABEL: f11:
96; CHECK: lg %r2, 168(%r15)
97; CHECK: br %r14
98  ret i64 %s2
99}
100
101; Floats are passed right-justified.
102define float @f12(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
103                  fp128 %r6, i64 %s1, float %f4, double %f6, i64 %s2,
104                  float %s3) {
105; CHECK-LABEL: f12:
106; CHECK: le %f0, 180(%r15)
107; CHECK: br %r14
108  ret float %s3
109}
110
111; Test a case where the fp128 address is passed on the stack.
112define void @f13(fp128 *%r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
113                 fp128 %r6, i64 %s1, float %f4, double %f6, i64 %s2,
114                 float %s3, fp128 %s4) {
115; CHECK-LABEL: f13:
116; CHECK: lg [[REGISTER:%r[1-5]+]], 184(%r15)
117; CHECK: ld %f0, 0([[REGISTER]])
118; CHECK: ld %f2, 8([[REGISTER]])
119; CHECK: axbr %f0, %f0
120; CHECK: std %f0, 0(%r2)
121; CHECK: std %f2, 8(%r2)
122; CHECK: br %r14
123  %y = fadd fp128 %s4, %s4
124  store fp128 %y, fp128 *%r2
125  ret void
126}
127
128; Explicit fp128 return values are likewise passed indirectly.
129define fp128 @f14(fp128 %r3) {
130; CHECK-LABEL: f14:
131; CHECK: ld %f0, 0(%r3)
132; CHECK: ld %f2, 8(%r3)
133; CHECK: axbr %f0, %f0
134; CHECK: std %f0, 0(%r2)
135; CHECK: std %f2, 8(%r2)
136; CHECK: br %r14
137  %y = fadd fp128 %r3, %r3
138  ret fp128 %y
139}
140
141