1 /* { dg-do run { target { powerpc_fprs && { ilp32 && dfprt } } } } */
2 /* { dg-options "-std=gnu99 -O2 -fno-strict-aliasing" } */
3
4 /* Testcase to check for ABI compliance of parameter passing
5 for the PowerPC ELF ABI for decimal float values. */
6
7 extern void abort (void);
8 int failcnt = 0;
9
10 /* Support compiling the test to report individual failures; default is
11 to abort as soon as a check fails. */
12 #ifdef DBG
13 #include <stdio.h>
14 #define FAILURE { printf ("failed at line %d\n", __LINE__); failcnt++; }
15 #else
16 #define FAILURE abort ();
17 #endif
18
19 typedef struct
20 {
21 int pad;
22 _Decimal32 d;
23 } d32parm_t;
24
25 typedef struct
26 {
27 unsigned int gprs[8];
28 double fprs[8];
29 } reg_parms_t;
30
31 reg_parms_t gparms;
32
33 typedef struct sf
34 {
35 struct sf *backchain;
36 int a1;
37 unsigned int slot[200];
38 } stack_frame_t;
39
40 /* Wrapper to save the GPRs and FPRs and then jump to the real function. */
41 #define WRAPPER(NAME) \
42 __asm__ ("\t.globl\t" #NAME "_asm\n\t" \
43 ".text\n\t" \
44 ".type " #NAME "_asm, @function\n" \
45 #NAME "_asm:\n\t" \
46 "lis 11,gparms@ha\n\t" \
47 "la 11,gparms@l(11)\n\t" \
48 "stw 3,0(11)\n\t" \
49 "stw 4,4(11)\n\t" \
50 "stw 5,8(11)\n\t" \
51 "stw 6,12(11)\n\t" \
52 "stw 7,16(11)\n\t" \
53 "stw 8,20(11)\n\t" \
54 "stw 9,24(11)\n\t" \
55 "stw 10,28(11)\n\t" \
56 "stfd 1,32(11)\n\t" \
57 "stfd 2,40(11)\n\t" \
58 "stfd 3,48(11)\n\t" \
59 "stfd 4,56(11)\n\t" \
60 "stfd 5,64(11)\n\t" \
61 "stfd 6,72(11)\n\t" \
62 "stfd 7,80(11)\n\t" \
63 "stfd 8,88(11)\n\t" \
64 "b " #NAME "\n\t" \
65 ".size " #NAME ",.-" #NAME "\n")
66
67 /* Fill up floating point registers with double arguments, forcing
68 decimal float arguments into the parameter save area. */
69 extern void func0_asm (double, double, double, double, double,
70 double, double, double, _Decimal64, _Decimal128);
71
72 WRAPPER(func0);
73
74 void __attribute__ ((noinline))
75 func0 (double a1, double a2, double a3, double a4, double a5,
76 double a6, double a7, double a8, _Decimal64 a9, _Decimal128 a10)
77 {
78 stack_frame_t *sp;
79
80 sp = __builtin_frame_address (0);
81 sp = sp->backchain;
82
83 if (a1 != gparms.fprs[0]) FAILURE
84 if (a2 != gparms.fprs[1]) FAILURE
85 if (a3 != gparms.fprs[2]) FAILURE
86 if (a4 != gparms.fprs[3]) FAILURE
87 if (a5 != gparms.fprs[4]) FAILURE
88 if (a6 != gparms.fprs[5]) FAILURE
89 if (a7 != gparms.fprs[6]) FAILURE
90 if (a8 != gparms.fprs[7]) FAILURE
91 if (a9 != *(_Decimal64 *)&sp->slot[0]) FAILURE
92 if (a10 != *(_Decimal128 *)&sp->slot[2]) FAILURE
93 }
94
95 /* Alternate 64-bit and 128-bit decimal float arguments, checking that
96 _Decimal128 is always passed in even/odd register pairs. */
97 extern void func1_asm (_Decimal64, _Decimal128, _Decimal64, _Decimal128,
98 _Decimal64, _Decimal128, _Decimal64, _Decimal128);
99
100 WRAPPER(func1);
101
102 void __attribute__ ((noinline))
103 func1 (_Decimal64 a1, _Decimal128 a2, _Decimal64 a3, _Decimal128 a4,
104 _Decimal64 a5, _Decimal128 a6, _Decimal64 a7, _Decimal128 a8)
105 {
106 stack_frame_t *sp;
107
108 sp = __builtin_frame_address (0);
109 sp = sp->backchain;
110
111 if (a1 != *(_Decimal64 *)&gparms.fprs[0]) FAILURE /* f1 */
112 if (a2 != *(_Decimal128 *)&gparms.fprs[1]) FAILURE /* f2 & f3 */
113 if (a3 != *(_Decimal64 *)&gparms.fprs[3]) FAILURE /* f4 */
114 if (a4 != *(_Decimal128 *)&gparms.fprs[5]) FAILURE /* f6 & f7 */
115 if (a5 != *(_Decimal64 *)&gparms.fprs[7]) FAILURE /* f8 */
116 if (a6 != *(_Decimal128 *)&sp->slot[0]) FAILURE
117 if (a7 != *(_Decimal64 *)&sp->slot[4]) FAILURE
118 if (a8 != *(_Decimal128 *)&sp->slot[6]) FAILURE
119 }
120
121 extern void func2_asm (_Decimal128, _Decimal64, _Decimal128, _Decimal64,
122 _Decimal128, _Decimal64, _Decimal128, _Decimal64);
123
124 WRAPPER(func2);
125
126 void __attribute__ ((noinline))
127 func2 (_Decimal128 a1, _Decimal64 a2, _Decimal128 a3, _Decimal64 a4,
128 _Decimal128 a5, _Decimal64 a6, _Decimal128 a7, _Decimal64 a8)
129 {
130 stack_frame_t *sp;
131
132 sp = __builtin_frame_address (0);
133 sp = sp->backchain;
134
135 if (a1 != *(_Decimal128 *)&gparms.fprs[1]) FAILURE /* f2 & f3 */
136 if (a2 != *(_Decimal64 *)&gparms.fprs[3]) FAILURE /* f4 */
137 if (a3 != *(_Decimal128 *)&gparms.fprs[5]) FAILURE /* f6 & f7 */
138 if (a4 != *(_Decimal64 *)&gparms.fprs[7]) FAILURE /* f8 */
139 if (a5 != *(_Decimal128 *)&sp->slot[0]) FAILURE
140 if (a6 != *(_Decimal64 *)&sp->slot[4]) FAILURE
141 if (a7 != *(_Decimal128 *)&sp->slot[6]) FAILURE
142 if (a8 != *(_Decimal64 *)&sp->slot[10]) FAILURE
143 }
144
145 extern void func3_asm (_Decimal64, _Decimal128, _Decimal64, _Decimal128,
146 _Decimal64);
147
148 WRAPPER(func3);
149
150 void __attribute__ ((noinline))
151 func3 (_Decimal64 a1, _Decimal128 a2, _Decimal64 a3, _Decimal128 a4,
152 _Decimal64 a5)
153 {
154 stack_frame_t *sp;
155
156 sp = __builtin_frame_address (0);
157 sp = sp->backchain;
158
159 if (a1 != *(_Decimal64 *)&gparms.fprs[0]) FAILURE /* f1 */
160 if (a2 != *(_Decimal128 *)&gparms.fprs[1]) FAILURE /* f2 & f3 */
161 if (a3 != *(_Decimal64 *)&gparms.fprs[3]) FAILURE /* f4 */
162 if (a4 != *(_Decimal128 *)&gparms.fprs[5]) FAILURE /* f6 & f7 */
163 if (a5 != *(_Decimal128 *)&sp->slot[0]) FAILURE
164 }
165
166 extern void func4_asm (_Decimal32, _Decimal32, _Decimal32, _Decimal32,
167 _Decimal32, _Decimal32, _Decimal32, _Decimal32,
168 _Decimal32, _Decimal32, _Decimal32, _Decimal32,
169 _Decimal32, _Decimal32, _Decimal32, _Decimal32);
170
171 WRAPPER(func4);
172
173 void __attribute__ ((noinline))
174 func4 (_Decimal32 a1, _Decimal32 a2, _Decimal32 a3, _Decimal32 a4,
175 _Decimal32 a5, _Decimal32 a6, _Decimal32 a7, _Decimal32 a8,
176 _Decimal32 a9, _Decimal32 a10, _Decimal32 a11, _Decimal32 a12,
177 _Decimal32 a13, _Decimal32 a14, _Decimal32 a15, _Decimal32 a16)
178 {
179 stack_frame_t *sp;
180
181 sp = __builtin_frame_address (0);
182 sp = sp->backchain;
183
184 /* _Decimal32 is passed in the lower half of an FPR, or in parameter slot. */
185 if (a1 != ((d32parm_t *)&gparms.fprs[0])->d) FAILURE /* f1 */
186 if (a2 != ((d32parm_t *)&gparms.fprs[1])->d) FAILURE /* f2 */
187 if (a3 != ((d32parm_t *)&gparms.fprs[2])->d) FAILURE /* f3 */
188 if (a4 != ((d32parm_t *)&gparms.fprs[3])->d) FAILURE /* f4 */
189 if (a5 != ((d32parm_t *)&gparms.fprs[4])->d) FAILURE /* f5 */
190 if (a6 != ((d32parm_t *)&gparms.fprs[5])->d) FAILURE /* f6 */
191 if (a7 != ((d32parm_t *)&gparms.fprs[6])->d) FAILURE /* f7 */
192 if (a8 != ((d32parm_t *)&gparms.fprs[7])->d) FAILURE /* f8 */
193 if (a9 != *(_Decimal32 *)&sp->slot[0]) FAILURE
194 if (a10 != *(_Decimal32 *)&sp->slot[1]) FAILURE
195 if (a11 != *(_Decimal32 *)&sp->slot[2]) FAILURE
196 if (a12 != *(_Decimal32 *)&sp->slot[3]) FAILURE
197 if (a13 != *(_Decimal32 *)&sp->slot[4]) FAILURE
198 if (a14 != *(_Decimal32 *)&sp->slot[5]) FAILURE
199 if (a15 != *(_Decimal32 *)&sp->slot[6]) FAILURE
200 if (a16 != *(_Decimal32 *)&sp->slot[7]) FAILURE
201 }
202
203 extern void func5_asm (_Decimal32, _Decimal64, _Decimal128,
204 _Decimal32, _Decimal64, _Decimal128,
205 _Decimal32, _Decimal64, _Decimal128,
206 _Decimal32, _Decimal64, _Decimal128);
207
208 WRAPPER(func5);
209
210 void __attribute__ ((noinline))
211 func5 (_Decimal32 a1, _Decimal64 a2, _Decimal128 a3,
212 _Decimal32 a4, _Decimal64 a5, _Decimal128 a6,
213 _Decimal32 a7, _Decimal64 a8, _Decimal128 a9,
214 _Decimal32 a10, _Decimal64 a11, _Decimal128 a12)
215 {
216 stack_frame_t *sp;
217
218 sp = __builtin_frame_address (0);
219 sp = sp->backchain;
220
221 if (a1 != ((d32parm_t *)&gparms.fprs[0])->d) FAILURE /* f1 */
222 if (a2 != *(_Decimal64 *)&gparms.fprs[1]) FAILURE /* f2 */
223 if (a3 != *(_Decimal128 *)&gparms.fprs[3]) FAILURE /* f4 & f5 */
224 if (a4 != ((d32parm_t *)&gparms.fprs[5])->d) FAILURE /* f6 */
225 if (a5 != *(_Decimal64 *)&gparms.fprs[6]) FAILURE /* f7 */
226
227 if (a6 != *(_Decimal128 *)&sp->slot[0]) FAILURE
228 if (a7 != *(_Decimal32 *)&sp->slot[4]) FAILURE
229 if (a8 != *(_Decimal64 *)&sp->slot[6]) FAILURE
230 if (a9 != *(_Decimal128 *)&sp->slot[8]) FAILURE
231 if (a10 != *(_Decimal32 *)&sp->slot[12]) FAILURE
232 if (a11 != *(_Decimal64 *)&sp->slot[14]) FAILURE
233 if (a12 != *(_Decimal128 *)&sp->slot[16]) FAILURE
234 }
235
236 int
237 main ()
238 {
239 func0_asm (1., 2., 3., 4., 5., 6., 7., 8., 9.dd, 10.dl);
240 func1_asm (1.dd, 2.dl, 3.dd, 4.dl, 5.dd, 6.dl, 7.dd, 8.dl);
241 func2_asm (1.dl, 2.dd, 3.dl, 4.dd, 5.dl, 6.dd, 7.dl, 8.dd);
242 func3_asm (1.dd, 2.dl, 3.dd, 4.dl, 5.dl);
243 func4_asm (501.2df, 502.2df, 503.2df, 504.2df, 505.2df, 506.2df, 507.2df,
244 508.2df, 509.2df, 510.2df, 511.2df, 512.2df, 513.2df, 514.2df,
245 515.2df, 516.2df);
246 func5_asm (601.2df, 602.2dd, 603.2dl, 604.2df, 605.2dd, 606.2dl,
247 607.2df, 608.2dd, 609.2dl, 610.2df, 611.2dd, 612.2dl);
248
249 if (failcnt != 0)
250 abort ();
251
252 return 0;
253 }