gcc/testsuite/gcc.target/aarch64/ldp_always.c

   1 /* { dg-options "-O2 --param=aarch64-ldp-policy=always -mcpu=generic" } */
   2
   3 #include <stdlib.h>
   4 #include <stdint.h>
   5
   6 typedef int v4si __attribute__ ((vector_size (16)));
   7
   8 #define LDP_TEST_ALIGNED(TYPE) \
   9 TYPE ldp_aligned_##TYPE(char* ptr){ \
  10     TYPE a_0, a_1; \
  11     TYPE *arr = (TYPE*) ((uintptr_t)ptr & ~(2 * 8 * _Alignof(TYPE) - 1)); \
  12     a_0 = arr[0]; \
  13     a_1 = arr[1]; \
  14     return a_0 + a_1; \
  15 }
  16
  17 #define LDP_TEST_UNALIGNED(TYPE) \
  18 TYPE ldp_unaligned_##TYPE(char* ptr){ \
  19     TYPE a_0, a_1; \
  20     TYPE *arr = (TYPE*) ((uintptr_t)ptr & ~(2 * 8 * _Alignof(TYPE) - 1)); \
  21     TYPE *a = arr+1; \
  22     a_0 = a[0]; \
  23     a_1 = a[1]; \
  24     return a_0 + a_1; \
  25 }
  26
  27 #define LDP_TEST_ADJUST_ALIGNED(TYPE) \
  28 TYPE ldp_aligned_adjust_##TYPE(char* ptr){ \
  29     TYPE a_0, a_1, a_2, a_3, a_4; \
  30     TYPE *arr = (TYPE*) ((uintptr_t)ptr & ~(2 * 8 * _Alignof(TYPE) - 1)); \
  31     a_0 = arr[100]; \
  32     a_1 = arr[101]; \
  33     a_2 = arr[102]; \
  34     a_3 = arr[103]; \
  35     a_4 = arr[110]; \
  36     return a_0 + a_1 + a_2 + a_3 + a_4; \
  37 }
  38
  39 #define LDP_TEST_ADJUST_UNALIGNED(TYPE) \
  40 TYPE ldp_unaligned_adjust_##TYPE(char* ptr){ \
  41     TYPE a_0, a_1, a_2, a_3, a_4; \
  42     TYPE *arr = (TYPE*) ((uintptr_t)ptr & ~(2 * 8 * _Alignof(TYPE) - 1)); \
  43     TYPE *a = arr+1; \
  44     a_0 = a[100]; \
  45     a_1 = a[101]; \
  46     a_2 = a[102]; \
  47     a_3 = a[103]; \
  48     a_4 = a[110]; \
  49     return a_0 + a_1 + a_2 + a_3 + a_4; \
  50 }
  51
  52 LDP_TEST_ALIGNED(int32_t);
  53 LDP_TEST_ALIGNED(int64_t);
  54 LDP_TEST_ALIGNED(v4si);
  55 LDP_TEST_UNALIGNED(int32_t);
  56 LDP_TEST_UNALIGNED(int64_t);
  57 LDP_TEST_UNALIGNED(v4si);
  58 LDP_TEST_ADJUST_ALIGNED(int32_t);
  59 LDP_TEST_ADJUST_ALIGNED(int64_t);
  60 LDP_TEST_ADJUST_UNALIGNED(int32_t);
  61 LDP_TEST_ADJUST_UNALIGNED(int64_t);
  62
  63 /* { dg-final { scan-assembler-times "ldp\tw\[0-9\]+, w\[0-9\]" 6 } } */
  64 /* { dg-final { scan-assembler-times "ldp\tx\[0-9\]+, x\[0-9\]" 6 } } */
  65 /* { dg-final { scan-assembler-times "ldp\tq\[0-9\]+, q\[0-9\]" 2 } } */
  66