gcc/testsuite/gcc.target/i386/crc32-5.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   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 #pragma GCC target ("crc32")
   8
   9 unsigned int
  10 crc32b (unsigned int x, unsigned char y)
  11 {
  12   return __builtin_ia32_crc32qi (x, y);
  13 }
  14
  15 unsigned int
  16 crc32w (unsigned int x, unsigned short y)
  17 {
  18   return __builtin_ia32_crc32hi (x, y);
  19 }
  20
  21 unsigned int
  22 crc32d (unsigned int x, unsigned int y)
  23 {
  24   return __builtin_ia32_crc32si (x, y);
  25 }