gcc/testsuite/gcc.target/arm/unaligned-memcpy-3.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target arm_unaligned } */
   3 /* { dg-options "-O2" } */
   4
   5 #include <string.h>
   6
   7 char src[16] = {0};
   8
   9 void aligned_src (char *dest)
  10 {
  11   memcpy (dest, src, 15);
  12 }
  13
  14 /* Expect a multi-word load for the main part of the copy, but subword
  15    loads/stores for the remainder.  */
  16
  17 /* { dg-final { scan-assembler-times "ldmia" 1 { target { ! { arm_prefer_ldrd_strd } } } } } */
  18 /* { dg-final { scan-assembler-times "ldrd" 1 { target { arm_prefer_ldrd_strd } } } } */
  19 /* { dg-final { scan-assembler-times "strd" 0 } } */
  20 /* { dg-final { scan-assembler-times "stm" 0 } } */
  21 /* { dg-final { scan-assembler-times "ldrh" 1 { target { ! { arm_prefer_ldrd_strd } } } } } */
  22 /* { dg-final { scan-assembler-times "strh" 1 } } */
  23 /* { dg-final { scan-assembler-times "ldrb" 1 { target { ! { arm_prefer_ldrd_strd } } } } } */
  24 /* { dg-final { scan-assembler-times "strb" 1 } } */