gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target arm_unaligned } */
   3 /* { dg-options "-O2" } */
   4
   5 #include <string.h>
   6
   7 void unknown_alignment (char *dest, char *src)
   8 {
   9   memcpy (dest, src, 15);
  10 }
  11
  12 /* We should see three unaligned word loads and store pairs, one unaligned
  13    ldrh/strh pair, and an ldrb/strb pair.  Sanity check that.  */
  14
  15 /* { dg-final { scan-assembler-times "@ unaligned" 8 } } */
  16 /* { dg-final { scan-assembler-times "ldrh" 1 } } */
  17 /* { dg-final { scan-assembler-times "strh" 1 } } */
  18 /* { dg-final { scan-assembler-times "ldrb" 1 } } */
  19 /* { dg-final { scan-assembler-times "strb" 1 } } */