gcc/testsuite/gcc.target/arm/pragma_arch_attribute_2.c

   1 /* Test for target attribute assembly extension generations.  */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target arm_arch_v8a_ok } */
   4 /* { dg-add-options arm_arch_v8a } */
   5 /* { dg-additional-options "-std=gnu99" } */
   6
   7 #include <stdint.h>
   8
   9 extern uint32_t bar();
  10
  11 __attribute__((target("arch=armv8-a+crc"))) uint32_t crc32cw(uint32_t crc, uint32_t val)
  12 {
  13     uint32_t res;
  14     asm("crc32cw %0, %1, %2" : "=r"(res) : "r"(crc), "r"(val));
  15     return res;
  16 }
  17
  18 uint32_t restored ()
  19 {
  20   return bar();
  21 }
  22
  23 /* { dg-final { scan-assembler-times {\.arch\s+armv8-a} 3 } } */
  24 /* { dg-final { scan-assembler-times {\.arch_extension\s+crc} 1 } } */
  25