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1; Like frame-02.ll, but with doubles rather than floats.  Internally this
2; uses a different register class, but the set of saved and restored
3; registers should be the same.
4;
5; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
6
7; This function should require all FPRs, but no other spill slots.
8; We need to save and restore 8 of the 16 FPRs, so the frame size
9; should be exactly 160 + 8 * 8 = 224.  The CFA offset is 160
10; (the caller-allocated part of the frame) + 224.
11define void @f1(double *%ptr) {
12; CHECK-LABEL: f1:
13; CHECK: aghi %r15, -224
14; CHECK: .cfi_def_cfa_offset 384
15; CHECK: std %f8, 216(%r15)
16; CHECK: std %f9, 208(%r15)
17; CHECK: std %f10, 200(%r15)
18; CHECK: std %f11, 192(%r15)
19; CHECK: std %f12, 184(%r15)
20; CHECK: std %f13, 176(%r15)
21; CHECK: std %f14, 168(%r15)
22; CHECK: std %f15, 160(%r15)
23; CHECK: .cfi_offset %f8, -168
24; CHECK: .cfi_offset %f9, -176
25; CHECK: .cfi_offset %f10, -184
26; CHECK: .cfi_offset %f11, -192
27; CHECK: .cfi_offset %f12, -200
28; CHECK: .cfi_offset %f13, -208
29; CHECK: .cfi_offset %f14, -216
30; CHECK: .cfi_offset %f15, -224
31; ...main function body...
32; CHECK: ld %f8, 216(%r15)
33; CHECK: ld %f9, 208(%r15)
34; CHECK: ld %f10, 200(%r15)
35; CHECK: ld %f11, 192(%r15)
36; CHECK: ld %f12, 184(%r15)
37; CHECK: ld %f13, 176(%r15)
38; CHECK: ld %f14, 168(%r15)
39; CHECK: ld %f15, 160(%r15)
40; CHECK: aghi %r15, 224
41; CHECK: br %r14
42  %l0 = load volatile double, double *%ptr
43  %l1 = load volatile double, double *%ptr
44  %l2 = load volatile double, double *%ptr
45  %l3 = load volatile double, double *%ptr
46  %l4 = load volatile double, double *%ptr
47  %l5 = load volatile double, double *%ptr
48  %l6 = load volatile double, double *%ptr
49  %l7 = load volatile double, double *%ptr
50  %l8 = load volatile double, double *%ptr
51  %l9 = load volatile double, double *%ptr
52  %l10 = load volatile double, double *%ptr
53  %l11 = load volatile double, double *%ptr
54  %l12 = load volatile double, double *%ptr
55  %l13 = load volatile double, double *%ptr
56  %l14 = load volatile double, double *%ptr
57  %l15 = load volatile double, double *%ptr
58  %add0 = fadd double %l0, %l0
59  %add1 = fadd double %l1, %add0
60  %add2 = fadd double %l2, %add1
61  %add3 = fadd double %l3, %add2
62  %add4 = fadd double %l4, %add3
63  %add5 = fadd double %l5, %add4
64  %add6 = fadd double %l6, %add5
65  %add7 = fadd double %l7, %add6
66  %add8 = fadd double %l8, %add7
67  %add9 = fadd double %l9, %add8
68  %add10 = fadd double %l10, %add9
69  %add11 = fadd double %l11, %add10
70  %add12 = fadd double %l12, %add11
71  %add13 = fadd double %l13, %add12
72  %add14 = fadd double %l14, %add13
73  %add15 = fadd double %l15, %add14
74  store volatile double %add0, double *%ptr
75  store volatile double %add1, double *%ptr
76  store volatile double %add2, double *%ptr
77  store volatile double %add3, double *%ptr
78  store volatile double %add4, double *%ptr
79  store volatile double %add5, double *%ptr
80  store volatile double %add6, double *%ptr
81  store volatile double %add7, double *%ptr
82  store volatile double %add8, double *%ptr
83  store volatile double %add9, double *%ptr
84  store volatile double %add10, double *%ptr
85  store volatile double %add11, double *%ptr
86  store volatile double %add12, double *%ptr
87  store volatile double %add13, double *%ptr
88  store volatile double %add14, double *%ptr
89  store volatile double %add15, double *%ptr
90  ret void
91}
92
93; Like f1, but requires one fewer FPR.  We allocate in numerical order,
94; so %f15 is the one that gets dropped.
95define void @f2(double *%ptr) {
96; CHECK-LABEL: f2:
97; CHECK: aghi %r15, -216
98; CHECK: .cfi_def_cfa_offset 376
99; CHECK: std %f8, 208(%r15)
100; CHECK: std %f9, 200(%r15)
101; CHECK: std %f10, 192(%r15)
102; CHECK: std %f11, 184(%r15)
103; CHECK: std %f12, 176(%r15)
104; CHECK: std %f13, 168(%r15)
105; CHECK: std %f14, 160(%r15)
106; CHECK: .cfi_offset %f8, -168
107; CHECK: .cfi_offset %f9, -176
108; CHECK: .cfi_offset %f10, -184
109; CHECK: .cfi_offset %f11, -192
110; CHECK: .cfi_offset %f12, -200
111; CHECK: .cfi_offset %f13, -208
112; CHECK: .cfi_offset %f14, -216
113; CHECK-NOT: %f15
114; ...main function body...
115; CHECK: ld %f8, 208(%r15)
116; CHECK: ld %f9, 200(%r15)
117; CHECK: ld %f10, 192(%r15)
118; CHECK: ld %f11, 184(%r15)
119; CHECK: ld %f12, 176(%r15)
120; CHECK: ld %f13, 168(%r15)
121; CHECK: ld %f14, 160(%r15)
122; CHECK: aghi %r15, 216
123; CHECK: br %r14
124  %l0 = load volatile double, double *%ptr
125  %l1 = load volatile double, double *%ptr
126  %l2 = load volatile double, double *%ptr
127  %l3 = load volatile double, double *%ptr
128  %l4 = load volatile double, double *%ptr
129  %l5 = load volatile double, double *%ptr
130  %l6 = load volatile double, double *%ptr
131  %l7 = load volatile double, double *%ptr
132  %l8 = load volatile double, double *%ptr
133  %l9 = load volatile double, double *%ptr
134  %l10 = load volatile double, double *%ptr
135  %l11 = load volatile double, double *%ptr
136  %l12 = load volatile double, double *%ptr
137  %l13 = load volatile double, double *%ptr
138  %l14 = load volatile double, double *%ptr
139  %add0 = fadd double %l0, %l0
140  %add1 = fadd double %l1, %add0
141  %add2 = fadd double %l2, %add1
142  %add3 = fadd double %l3, %add2
143  %add4 = fadd double %l4, %add3
144  %add5 = fadd double %l5, %add4
145  %add6 = fadd double %l6, %add5
146  %add7 = fadd double %l7, %add6
147  %add8 = fadd double %l8, %add7
148  %add9 = fadd double %l9, %add8
149  %add10 = fadd double %l10, %add9
150  %add11 = fadd double %l11, %add10
151  %add12 = fadd double %l12, %add11
152  %add13 = fadd double %l13, %add12
153  %add14 = fadd double %l14, %add13
154  store volatile double %add0, double *%ptr
155  store volatile double %add1, double *%ptr
156  store volatile double %add2, double *%ptr
157  store volatile double %add3, double *%ptr
158  store volatile double %add4, double *%ptr
159  store volatile double %add5, double *%ptr
160  store volatile double %add6, double *%ptr
161  store volatile double %add7, double *%ptr
162  store volatile double %add8, double *%ptr
163  store volatile double %add9, double *%ptr
164  store volatile double %add10, double *%ptr
165  store volatile double %add11, double *%ptr
166  store volatile double %add12, double *%ptr
167  store volatile double %add13, double *%ptr
168  store volatile double %add14, double *%ptr
169  ret void
170}
171
172; Like f1, but should require only one call-saved FPR.
173define void @f3(double *%ptr) {
174; CHECK-LABEL: f3:
175; CHECK: aghi %r15, -168
176; CHECK: .cfi_def_cfa_offset 328
177; CHECK: std %f8, 160(%r15)
178; CHECK: .cfi_offset %f8, -168
179; CHECK-NOT: %f9
180; CHECK-NOT: %f10
181; CHECK-NOT: %f11
182; CHECK-NOT: %f12
183; CHECK-NOT: %f13
184; CHECK-NOT: %f14
185; CHECK-NOT: %f15
186; ...main function body...
187; CHECK: ld %f8, 160(%r15)
188; CHECK: aghi %r15, 168
189; CHECK: br %r14
190  %l0 = load volatile double, double *%ptr
191  %l1 = load volatile double, double *%ptr
192  %l2 = load volatile double, double *%ptr
193  %l3 = load volatile double, double *%ptr
194  %l4 = load volatile double, double *%ptr
195  %l5 = load volatile double, double *%ptr
196  %l6 = load volatile double, double *%ptr
197  %l7 = load volatile double, double *%ptr
198  %l8 = load volatile double, double *%ptr
199  %add0 = fadd double %l0, %l0
200  %add1 = fadd double %l1, %add0
201  %add2 = fadd double %l2, %add1
202  %add3 = fadd double %l3, %add2
203  %add4 = fadd double %l4, %add3
204  %add5 = fadd double %l5, %add4
205  %add6 = fadd double %l6, %add5
206  %add7 = fadd double %l7, %add6
207  %add8 = fadd double %l8, %add7
208  store volatile double %add0, double *%ptr
209  store volatile double %add1, double *%ptr
210  store volatile double %add2, double *%ptr
211  store volatile double %add3, double *%ptr
212  store volatile double %add4, double *%ptr
213  store volatile double %add5, double *%ptr
214  store volatile double %add6, double *%ptr
215  store volatile double %add7, double *%ptr
216  store volatile double %add8, double *%ptr
217  ret void
218}
219
220; This function should use all call-clobbered FPRs but no call-saved ones.
221; It shouldn't need to create a frame.
222define void @f4(double *%ptr) {
223; CHECK-LABEL: f4:
224; CHECK-NOT: %r15
225; CHECK-NOT: %f8
226; CHECK-NOT: %f9
227; CHECK-NOT: %f10
228; CHECK-NOT: %f11
229; CHECK-NOT: %f12
230; CHECK-NOT: %f13
231; CHECK-NOT: %f14
232; CHECK-NOT: %f15
233; CHECK: br %r14
234  %l0 = load volatile double, double *%ptr
235  %l1 = load volatile double, double *%ptr
236  %l2 = load volatile double, double *%ptr
237  %l3 = load volatile double, double *%ptr
238  %l4 = load volatile double, double *%ptr
239  %l5 = load volatile double, double *%ptr
240  %l6 = load volatile double, double *%ptr
241  %l7 = load volatile double, double *%ptr
242  %add0 = fadd double %l0, %l0
243  %add1 = fadd double %l1, %add0
244  %add2 = fadd double %l2, %add1
245  %add3 = fadd double %l3, %add2
246  %add4 = fadd double %l4, %add3
247  %add5 = fadd double %l5, %add4
248  %add6 = fadd double %l6, %add5
249  %add7 = fadd double %l7, %add6
250  store volatile double %add0, double *%ptr
251  store volatile double %add1, double *%ptr
252  store volatile double %add2, double *%ptr
253  store volatile double %add3, double *%ptr
254  store volatile double %add4, double *%ptr
255  store volatile double %add5, double *%ptr
256  store volatile double %add6, double *%ptr
257  store volatile double %add7, double *%ptr
258  ret void
259}
260