gcc/testsuite/gcc.target/aarch64/sve/pcs/stack_clash_2_256.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fshrink-wrap -fstack-clash-protection -msve-vector-bits=256 -g" } */
   3 /* { dg-final { check-function-bodies "**" "" } } */
   4
   5 #pragma GCC aarch64 "arm_sve.h"
   6
   7 svbool_t take_stack_args (volatile void *, void *, int, int, int,
   8                           int, int, int, int);
   9
  10 /*
  11 ** test_1:
  12 **      sub     sp, sp, #48
  13 **      str     z16, \[sp\]
  14 **      ...
  15 **      ptrue   p0\.b, vl32
  16 **      ldr     z16, \[sp\]
  17 **      add     sp, sp, #?48
  18 **      ret
  19 */
  20 svbool_t
  21 test_1 (void)
  22 {
  23   volatile int x = 1;
  24   asm volatile ("" ::: "z16");
  25   return svptrue_b8 ();
  26 }
  27
  28 /*
  29 ** test_2:
  30 **      sub     sp, sp, #80
  31 **      stp     x24, x25, \[sp, 32\]
  32 **      str     x26, \[sp, 48\]
  33 **      str     z16, \[sp\]
  34 **      ...
  35 **      ptrue   p0\.b, vl32
  36 **      ldr     z16, \[sp\]
  37 **      ldp     x24, x25, \[sp, 32\]
  38 **      ldr     x26, \[sp, 48\]
  39 **      add     sp, sp, #?80
  40 **      ret
  41 */
  42 svbool_t
  43 test_2 (void)
  44 {
  45   volatile int x = 1;
  46   asm volatile ("" ::: "z16", "x24", "x25", "x26");
  47   return svptrue_b8 ();
  48 }
  49
  50 /*
  51 ** test_3:
  52 **      mov     x12, #?4160
  53 **      sub     sp, sp, x12
  54 **      stp     x24, x25, \[sp, 32\]
  55 **      str     x26, \[sp, 48\]
  56 **      str     z16, \[sp\]
  57 **      ...
  58 **      ptrue   p0\.b, vl32
  59 **      ldr     z16, \[sp\]
  60 **      ldp     x24, x25, \[sp, 32\]
  61 **      ldr     x26, \[sp, 48\]
  62 **      add     sp, sp, x12
  63 **      ret
  64 */
  65 svbool_t
  66 test_3 (void)
  67 {
  68   volatile int x[1024];
  69   asm volatile ("" :: "r" (x) : "z16", "x24", "x25", "x26");
  70   return svptrue_b8 ();
  71 }
  72
  73 /*
  74 ** test_4:
  75 **      sub     sp, sp, #64
  76 **      str     z16, \[sp\]
  77 **      ...
  78 **      ptrue   p0\.h, vl16
  79 **      ldr     z16, \[sp\]
  80 **      add     sp, sp, #?64
  81 **      ret
  82 */
  83 svbool_t
  84 test_4 (void)
  85 {
  86   volatile svint32_t b;
  87   b = svdup_s32 (1);
  88   asm volatile ("" ::: "z16");
  89   return svptrue_b16 ();
  90 }
  91
  92 /*
  93 ** test_5:
  94 **      sub     sp, sp, #96
  95 **      stp     x24, x25, \[sp, 32\]
  96 **      str     x26, \[sp, 48\]
  97 **      str     z16, \[sp\]
  98 **      ...
  99 **      ptrue   p0\.h, vl16
 100 **      ldr     z16, \[sp\]
 101 **      ldp     x24, x25, \[sp, 32\]
 102 **      ldr     x26, \[sp, 48\]
 103 **      add     sp, sp, #?96
 104 **      ret
 105 */
 106 svbool_t
 107 test_5 (void)
 108 {
 109   volatile svint32_t b;
 110   b = svdup_s32 (1);
 111   asm volatile ("" ::: "z16", "x24", "x25", "x26");
 112   return svptrue_b16 ();
 113 }
 114
 115 /*
 116 ** test_6:
 117 **      stp     x29, x30, \[sp, -16\]!
 118 **      mov     x29, sp
 119 **      sub     sp, sp, #32
 120 **      str     z16, \[sp\]
 121 **      ...
 122 **      ptrue   p0\.b, vl32
 123 **      add     sp, sp, #?16
 124 **      ldr     z16, \[sp\]
 125 **      add     sp, sp, #?32
 126 **      ldp     x29, x30, \[sp\], 16
 127 **      ret
 128 */
 129 svbool_t
 130 test_6 (void)
 131 {
 132   take_stack_args (0, 0, 1, 2, 3, 4, 5, 6, 7);
 133   asm volatile ("" ::: "z16");
 134   return svptrue_b8 ();
 135 }
 136
 137 /*
 138 ** test_7:
 139 **      mov     x12, #?4144
 140 **      sub     sp, sp, x12
 141 **      stp     x29, x30, \[sp, 32\]
 142 **      add     x29, sp, #?32
 143 **      str     z16, \[sp\]
 144 **      sub     sp, sp, #16
 145 **      ...
 146 **      ptrue   p0\.b, vl32
 147 **      add     sp, sp, #?16
 148 **      ldr     z16, \[sp\]
 149 **      add     sp, sp, #?32
 150 **      ldp     x29, x30, \[sp\]
 151 **      mov     x12, #?4112
 152 **      add     sp, sp, x12
 153 **      ret
 154 */
 155 svbool_t
 156 test_7 (void)
 157 {
 158   volatile int x[1024];
 159   take_stack_args (x, 0, 1, 2, 3, 4, 5, 6, 7);
 160   asm volatile ("" ::: "z16");
 161   return svptrue_b8 ();
 162 }
 163
 164 /*
 165 ** test_8:
 166 **      mov     x12, #?4176
 167 **      sub     sp, sp, x12
 168 **      stp     x29, x30, \[sp, 32\]
 169 **      add     x29, sp, #?32
 170 **      stp     x24, x25, \[sp, 48\]
 171 **      str     x26, \[sp, 64\]
 172 **      str     z16, \[sp\]
 173 **      sub     sp, sp, #16
 174 **      ...
 175 **      ptrue   p0\.b, vl32
 176 **      add     sp, sp, #?16
 177 **      ldr     z16, \[sp\]
 178 **      add     sp, sp, #?32
 179 **      ldp     x24, x25, \[sp, 16\]
 180 **      ldr     x26, \[sp, 32\]
 181 **      ldp     x29, x30, \[sp\]
 182 **      mov     x12, #?4144
 183 **      add     sp, sp, x12
 184 **      ret
 185 */
 186 svbool_t
 187 test_8 (void)
 188 {
 189   volatile int x[1024];
 190   take_stack_args (x, 0, 1, 2, 3, 4, 5, 6, 7);
 191   asm volatile ("" ::: "z16", "x24", "x25", "x26");
 192   return svptrue_b8 ();
 193 }
 194
 195 /*
 196 ** test_9:
 197 **      mov     x12, #?4144
 198 **      sub     sp, sp, x12
 199 **      stp     x29, x30, \[sp, 32\]
 200 **      add     x29, sp, #?32
 201 **      str     z16, \[sp\]
 202 **      sub     sp, sp, #16
 203 **      ...
 204 **      ptrue   p0\.b, vl32
 205 **      sub     sp, x29, #32
 206 **      ldr     z16, \[sp\]
 207 **      add     sp, sp, #?32
 208 **      ldp     x29, x30, \[sp\]
 209 **      mov     x12, #?4112
 210 **      add     sp, sp, x12
 211 **      ret
 212 */
 213 svbool_t
 214 test_9 (int n)
 215 {
 216   volatile int x[1024];
 217   take_stack_args (x, __builtin_alloca (n), 1, 2, 3, 4, 5, 6, 7);
 218   asm volatile ("" ::: "z16");
 219   return svptrue_b8 ();
 220 }
 221
 222 /*
 223 ** test_10:
 224 **      mov     x12, #?4176
 225 **      sub     sp, sp, x12
 226 **      stp     x29, x30, \[sp, 32\]
 227 **      add     x29, sp, #?32
 228 **      stp     x24, x25, \[sp, 48\]
 229 **      str     x26, \[sp, 64\]
 230 **      str     z16, \[sp\]
 231 **      sub     sp, sp, #16
 232 **      ...
 233 **      ptrue   p0\.b, vl32
 234 **      sub     sp, x29, #32
 235 **      ldr     z16, \[sp\]
 236 **      add     sp, sp, #?32
 237 **      ldp     x24, x25, \[sp, 16\]
 238 **      ldr     x26, \[sp, 32\]
 239 **      ldp     x29, x30, \[sp\]
 240 **      mov     x12, #?4144
 241 **      add     sp, sp, x12
 242 **      ret
 243 */
 244 svbool_t
 245 test_10 (int n)
 246 {
 247   volatile int x[1024];
 248   take_stack_args (x, __builtin_alloca (n), 1, 2, 3, 4, 5, 6, 7);
 249   asm volatile ("" ::: "z16", "x24", "x25", "x26");
 250   return svptrue_b8 ();
 251 }
 252
 253 /*
 254 ** test_11:
 255 **      sub     sp, sp, #65536
 256 **      str     xzr, \[sp, 1024\]
 257 **      mov     x12, #?64480
 258 **      sub     sp, sp, x12
 259 **      stp     x29, x30, \[sp, 32\]
 260 **      add     x29, sp, #?32
 261 **      stp     x24, x25, \[sp, 48\]
 262 **      str     x26, \[sp, 64\]
 263 **      str     z16, \[sp\]
 264 **      sub     sp, sp, #16
 265 **      ...
 266 **      ptrue   p0\.b, vl32
 267 **      sub     sp, x29, #32
 268 **      ldr     z16, \[sp\]
 269 **      add     sp, sp, #?32
 270 **      ldp     x24, x25, \[sp, 16\]
 271 **      ldr     x26, \[sp, 32\]
 272 **      ldp     x29, x30, \[sp\]
 273 **      add     sp, sp, #?3008
 274 **      add     sp, sp, #?126976
 275 **      ret
 276 */
 277 svbool_t
 278 test_11 (int n)
 279 {
 280   volatile int x[0x7ee4];
 281   take_stack_args (x, __builtin_alloca (n), 1, 2, 3, 4, 5, 6, 7);
 282   asm volatile ("" ::: "z16", "x24", "x25", "x26");
 283   return svptrue_b8 ();
 284 }