gcc/testsuite/gcc.target/i386/crc32-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -mcrc32" } */
   3 /* { dg-final { scan-assembler "crc32b\[^\\n\]*eax" } } */
   4 /* { dg-final { scan-assembler "crc32w\[^\\n\]*eax" } } */
   5 /* { dg-final { scan-assembler "crc32l\[^\\n\]*eax" } } */
   6
   7 unsigned int
   8 crc32b (unsigned int x, unsigned char y)
   9 {
  10   return __builtin_ia32_crc32qi (x, y);
  11 }
  12
  13 unsigned int
  14 crc32w (unsigned int x, unsigned short y)
  15 {
  16   return __builtin_ia32_crc32hi (x, y);
  17 }
  18
  19 unsigned int
  20 crc32d (unsigned int x, unsigned int y)
  21 {
  22   return __builtin_ia32_crc32si (x, y);
  23 }