gcc/testsuite/gcc.target/arm/attr-crypto.c

   1 /* { dg-do compile } */
   2 /* Make sure we can force fpu=vfp before switching using the
   3    pragma.  */
   4 /* { dg-require-effective-target arm_fp_ok } */
   5 /* { dg-options "-O2 -march=armv8-a" } */
   6 /* { dg-add-options arm_fp } */
   7
   8 /* Reset fpu to a value compatible with the next pragmas.  */
   9 #pragma GCC target ("fpu=vfp")
  10 #pragma GCC push_options
  11
  12 #pragma GCC target ("fpu=crypto-neon-fp-armv8")
  13
  14 #ifndef __ARM_FEATURE_CRYPTO
  15 #error __ARM_FEATURE_CRYPTO not defined.
  16 #endif
  17
  18 #ifndef __ARM_NEON
  19 #error __ARM_NEON not defined.
  20 #endif
  21
  22 #if !defined(__ARM_FP) || (__ARM_FP != 14)
  23 #error __ARM_FP
  24 #endif
  25
  26 #include "arm_neon.h"
  27
  28 int
  29 foo (void)
  30 {
  31   uint32x4_t a = {0xd, 0xe, 0xa, 0xd};
  32   uint32x4_t b = {0, 1, 2, 3};
  33
  34   uint32x4_t res = vsha256su0q_u32 (a, b);
  35   return res[0];
  36 }
  37
  38 #pragma GCC pop_options
  39
  40 /* Check that the FP version is correctly reset.  */
  41
  42 #if !defined(__ARM_FP) || (__ARM_FP != 12)
  43 #error __ARM_FP
  44 #endif
  45
  46 /* { dg-final { scan-assembler "sha256su0.32\tq\[0-9\]+, q\[0-9\]+" } } */