| blob | 290d824bfd0753ac7d790380e771f95d6cc5600c |
1 ; Test the saving and restoring of FPRs in large frames.
2 ;
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck -check-prefix=CHECK-NOFP %s
4 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 -frame-pointer=all | FileCheck -check-prefix=CHECK-FP %s
6 ; Test a frame size that requires some FPRs to be saved and loaded using
7 ; the 20-bit STDY and LDY while others can use the 12-bit STD and LD.
8 ; The frame is big enough to require two emergency spill slots at 160(%r15),
9 ; as well as the 8 FPR save slots. Get a frame of size 4128 by allocating
10 ; (4128 - 176 - 8 * 8) / 8 = 486 extra doublewords.
11 define void @f1(ptr %ptr, i64 %x) {
12 ; CHECK-NOFP-LABEL: f1:
13 ; CHECK-NOFP: aghi %r15, -4128
14 ; CHECK-NOFP: .cfi_def_cfa_offset 4288
15 ; CHECK-NOFP: stdy %f8, 4120(%r15)
16 ; CHECK-NOFP: stdy %f9, 4112(%r15)
17 ; CHECK-NOFP: stdy %f10, 4104(%r15)
18 ; CHECK-NOFP: stdy %f11, 4096(%r15)
19 ; CHECK-NOFP: std %f12, 4088(%r15)
20 ; CHECK-NOFP: std %f13, 4080(%r15)
21 ; CHECK-NOFP: std %f14, 4072(%r15)
22 ; CHECK-NOFP: std %f15, 4064(%r15)
23 ; CHECK-NOFP: .cfi_offset %f8, -168
24 ; CHECK-NOFP: .cfi_offset %f9, -176
25 ; CHECK-NOFP: .cfi_offset %f10, -184
26 ; CHECK-NOFP: .cfi_offset %f11, -192
27 ; CHECK-NOFP: .cfi_offset %f12, -200
28 ; CHECK-NOFP: .cfi_offset %f13, -208
29 ; CHECK-NOFP: .cfi_offset %f14, -216
30 ; CHECK-NOFP: .cfi_offset %f15, -224
31 ; ...main function body...
32 ; CHECK-NOFP: ldy %f8, 4120(%r15)
33 ; CHECK-NOFP: ldy %f9, 4112(%r15)
34 ; CHECK-NOFP: ldy %f10, 4104(%r15)
35 ; CHECK-NOFP: ldy %f11, 4096(%r15)
36 ; CHECK-NOFP: ld %f12, 4088(%r15)
37 ; CHECK-NOFP: ld %f13, 4080(%r15)
38 ; CHECK-NOFP: ld %f14, 4072(%r15)
39 ; CHECK-NOFP: ld %f15, 4064(%r15)
40 ; CHECK-NOFP: aghi %r15, 4128
41 ; CHECK-NOFP: br %r14
42 ;
43 ; CHECK-FP-LABEL: f1:
44 ; CHECK-FP: stmg %r11, %r15, 88(%r15)
45 ; CHECK-FP: aghi %r15, -4128
46 ; CHECK-FP: .cfi_def_cfa_offset 4288
47 ; CHECK-FP: lgr %r11, %r15
48 ; CHECK-FP: .cfi_def_cfa_register %r11
49 ; CHECK-FP: stdy %f8, 4120(%r11)
50 ; CHECK-FP: stdy %f9, 4112(%r11)
51 ; CHECK-FP: stdy %f10, 4104(%r11)
52 ; CHECK-FP: stdy %f11, 4096(%r11)
53 ; CHECK-FP: std %f12, 4088(%r11)
54 ; CHECK-FP: std %f13, 4080(%r11)
55 ; CHECK-FP: std %f14, 4072(%r11)
56 ; CHECK-FP: std %f15, 4064(%r11)
57 ; ...main function body...
58 ; CHECK-FP: ldy %f8, 4120(%r11)
59 ; CHECK-FP: ldy %f9, 4112(%r11)
60 ; CHECK-FP: ldy %f10, 4104(%r11)
61 ; CHECK-FP: ldy %f11, 4096(%r11)
62 ; CHECK-FP: ld %f12, 4088(%r11)
63 ; CHECK-FP: ld %f13, 4080(%r11)
64 ; CHECK-FP: ld %f14, 4072(%r11)
65 ; CHECK-FP: ld %f15, 4064(%r11)
66 ; CHECK-FP: lmg %r11, %r15, 4216(%r11)
67 ; CHECK-FP: br %r14
68 %y = alloca [486 x i64], align 8
69 store volatile i64 %x, ptr %y
70 %l0 = load volatile double, ptr %ptr
71 %l1 = load volatile double, ptr %ptr
72 %l2 = load volatile double, ptr %ptr
73 %l3 = load volatile double, ptr %ptr
74 %l4 = load volatile double, ptr %ptr
75 %l5 = load volatile double, ptr %ptr
76 %l6 = load volatile double, ptr %ptr
77 %l7 = load volatile double, ptr %ptr
78 %l8 = load volatile double, ptr %ptr
79 %l9 = load volatile double, ptr %ptr
80 %l10 = load volatile double, ptr %ptr
81 %l11 = load volatile double, ptr %ptr
82 %l12 = load volatile double, ptr %ptr
83 %l13 = load volatile double, ptr %ptr
84 %l14 = load volatile double, ptr %ptr
85 %l15 = load volatile double, ptr %ptr
86 %add0 = fadd double %l0, %l0
87 %add1 = fadd double %l1, %add0
88 %add2 = fadd double %l2, %add1
89 %add3 = fadd double %l3, %add2
90 %add4 = fadd double %l4, %add3
91 %add5 = fadd double %l5, %add4
92 %add6 = fadd double %l6, %add5
93 %add7 = fadd double %l7, %add6
94 %add8 = fadd double %l8, %add7
95 %add9 = fadd double %l9, %add8
96 %add10 = fadd double %l10, %add9
97 %add11 = fadd double %l11, %add10
98 %add12 = fadd double %l12, %add11
99 %add13 = fadd double %l13, %add12
100 %add14 = fadd double %l14, %add13
101 %add15 = fadd double %l15, %add14
102 store volatile double %add0, ptr %ptr
103 store volatile double %add1, ptr %ptr
104 store volatile double %add2, ptr %ptr
105 store volatile double %add3, ptr %ptr
106 store volatile double %add4, ptr %ptr
107 store volatile double %add5, ptr %ptr
108 store volatile double %add6, ptr %ptr
109 store volatile double %add7, ptr %ptr
110 store volatile double %add8, ptr %ptr
111 store volatile double %add9, ptr %ptr
112 store volatile double %add10, ptr %ptr
113 store volatile double %add11, ptr %ptr
114 store volatile double %add12, ptr %ptr
115 store volatile double %add13, ptr %ptr
116 store volatile double %add14, ptr %ptr
117 store volatile double %add15, ptr %ptr
118 ret void
119 }
121 ; Test a frame size that requires some FPRs to be saved and loaded using
122 ; an indexed STD and LD while others can use the 20-bit STDY and LDY.
123 ; The index can be any call-clobbered GPR except %r0.
124 ;
125 ; Don't require the accesses to share the same LLILH; that would be a
126 ; good optimisation but is really a different test.
127 ;
128 ; As above, get a frame of size 524320 by allocating
129 ; (524320 - 176 - 8 * 8) / 8 = 65510 extra doublewords.
130 define void @f2(ptr %ptr, i64 %x) {
131 ; CHECK-NOFP-LABEL: f2:
132 ; CHECK-NOFP: agfi %r15, -524320
133 ; CHECK-NOFP: .cfi_def_cfa_offset 524480
134 ; CHECK-NOFP: llilh [[INDEX:%r[1-5]]], 8
135 ; CHECK-NOFP: std %f8, 24([[INDEX]],%r15)
136 ; CHECK-NOFP: std %f9, 16({{%r[1-5]}},%r15)
137 ; CHECK-NOFP: std %f10, 8({{%r[1-5]}},%r15)
138 ; CHECK-NOFP: std %f11, 0({{%r[1-5]}},%r15)
139 ; CHECK-NOFP: stdy %f12, 524280(%r15)
140 ; CHECK-NOFP: stdy %f13, 524272(%r15)
141 ; CHECK-NOFP: stdy %f14, 524264(%r15)
142 ; CHECK-NOFP: stdy %f15, 524256(%r15)
143 ; CHECK-NOFP: .cfi_offset %f8, -168
144 ; CHECK-NOFP: .cfi_offset %f9, -176
145 ; CHECK-NOFP: .cfi_offset %f10, -184
146 ; CHECK-NOFP: .cfi_offset %f11, -192
147 ; CHECK-NOFP: .cfi_offset %f12, -200
148 ; CHECK-NOFP: .cfi_offset %f13, -208
149 ; CHECK-NOFP: .cfi_offset %f14, -216
150 ; CHECK-NOFP: .cfi_offset %f15, -224
151 ; ...main function body...
152 ; CHECK-NOFP: ld %f8, 24({{%r[1-5]}},%r15)
153 ; CHECK-NOFP: ld %f9, 16({{%r[1-5]}},%r15)
154 ; CHECK-NOFP: ld %f10, 8({{%r[1-5]}},%r15)
155 ; CHECK-NOFP: ld %f11, 0({{%r[1-5]}},%r15)
156 ; CHECK-NOFP: ldy %f12, 524280(%r15)
157 ; CHECK-NOFP: ldy %f13, 524272(%r15)
158 ; CHECK-NOFP: ldy %f14, 524264(%r15)
159 ; CHECK-NOFP: ldy %f15, 524256(%r15)
160 ; CHECK-NOFP: agfi %r15, 524320
161 ; CHECK-NOFP: br %r14
162 ;
163 ; CHECK-FP-LABEL: f2:
164 ; CHECK-FP: stmg %r11, %r15, 88(%r15)
165 ; CHECK-FP: agfi %r15, -524320
166 ; CHECK-FP: .cfi_def_cfa_offset 524480
167 ; CHECK-FP: llilh [[INDEX:%r[1-5]]], 8
168 ; CHECK-FP: std %f8, 24([[INDEX]],%r11)
169 ; CHECK-FP: std %f9, 16({{%r[1-5]}},%r11)
170 ; CHECK-FP: std %f10, 8({{%r[1-5]}},%r11)
171 ; CHECK-FP: std %f11, 0({{%r[1-5]}},%r11)
172 ; CHECK-FP: stdy %f12, 524280(%r11)
173 ; CHECK-FP: stdy %f13, 524272(%r11)
174 ; CHECK-FP: stdy %f14, 524264(%r11)
175 ; CHECK-FP: stdy %f15, 524256(%r11)
176 ; CHECK-FP: .cfi_offset %f8, -168
177 ; CHECK-FP: .cfi_offset %f9, -176
178 ; CHECK-FP: .cfi_offset %f10, -184
179 ; CHECK-FP: .cfi_offset %f11, -192
180 ; CHECK-FP: .cfi_offset %f12, -200
181 ; CHECK-FP: .cfi_offset %f13, -208
182 ; CHECK-FP: .cfi_offset %f14, -216
183 ; CHECK-FP: .cfi_offset %f15, -224
184 ; ...main function body...
185 ; CHECK-FP: ld %f8, 24({{%r[1-5]}},%r11)
186 ; CHECK-FP: ld %f9, 16({{%r[1-5]}},%r11)
187 ; CHECK-FP: ld %f10, 8({{%r[1-5]}},%r11)
188 ; CHECK-FP: ld %f11, 0({{%r[1-5]}},%r11)
189 ; CHECK-FP: ldy %f12, 524280(%r11)
190 ; CHECK-FP: ldy %f13, 524272(%r11)
191 ; CHECK-FP: ldy %f14, 524264(%r11)
192 ; CHECK-FP: ldy %f15, 524256(%r11)
193 ; CHECK-FP: aghi %r11, 128
194 ; CHECK-FP: lmg %r11, %r15, 524280(%r11)
195 ; CHECK-FP: br %r14
196 %y = alloca [65510 x i64], align 8
197 store volatile i64 %x, ptr %y
198 %l0 = load volatile double, ptr %ptr
199 %l1 = load volatile double, ptr %ptr
200 %l2 = load volatile double, ptr %ptr
201 %l3 = load volatile double, ptr %ptr
202 %l4 = load volatile double, ptr %ptr
203 %l5 = load volatile double, ptr %ptr
204 %l6 = load volatile double, ptr %ptr
205 %l7 = load volatile double, ptr %ptr
206 %l8 = load volatile double, ptr %ptr
207 %l9 = load volatile double, ptr %ptr
208 %l10 = load volatile double, ptr %ptr
209 %l11 = load volatile double, ptr %ptr
210 %l12 = load volatile double, ptr %ptr
211 %l13 = load volatile double, ptr %ptr
212 %l14 = load volatile double, ptr %ptr
213 %l15 = load volatile double, ptr %ptr
214 %add0 = fadd double %l0, %l0
215 %add1 = fadd double %l1, %add0
216 %add2 = fadd double %l2, %add1
217 %add3 = fadd double %l3, %add2
218 %add4 = fadd double %l4, %add3
219 %add5 = fadd double %l5, %add4
220 %add6 = fadd double %l6, %add5
221 %add7 = fadd double %l7, %add6
222 %add8 = fadd double %l8, %add7
223 %add9 = fadd double %l9, %add8
224 %add10 = fadd double %l10, %add9
225 %add11 = fadd double %l11, %add10
226 %add12 = fadd double %l12, %add11
227 %add13 = fadd double %l13, %add12
228 %add14 = fadd double %l14, %add13
229 %add15 = fadd double %l15, %add14
230 store volatile double %add0, ptr %ptr
231 store volatile double %add1, ptr %ptr
232 store volatile double %add2, ptr %ptr
233 store volatile double %add3, ptr %ptr
234 store volatile double %add4, ptr %ptr
235 store volatile double %add5, ptr %ptr
236 store volatile double %add6, ptr %ptr
237 store volatile double %add7, ptr %ptr
238 store volatile double %add8, ptr %ptr
239 store volatile double %add9, ptr %ptr
240 store volatile double %add10, ptr %ptr
241 store volatile double %add11, ptr %ptr
242 store volatile double %add12, ptr %ptr
243 store volatile double %add13, ptr %ptr
244 store volatile double %add14, ptr %ptr
245 store volatile double %add15, ptr %ptr
246 ret void
247 }