diff options
Diffstat (limited to 'contrib/llvm-project/clang/lib/Headers/rdseedintrin.h')
| -rw-r--r-- | contrib/llvm-project/clang/lib/Headers/rdseedintrin.h | 73 |
1 files changed, 68 insertions, 5 deletions
diff --git a/contrib/llvm-project/clang/lib/Headers/rdseedintrin.h b/contrib/llvm-project/clang/lib/Headers/rdseedintrin.h index ccb3d2dd2294..8a4fe093055b 100644 --- a/contrib/llvm-project/clang/lib/Headers/rdseedintrin.h +++ b/contrib/llvm-project/clang/lib/Headers/rdseedintrin.h @@ -7,8 +7,8 @@ *===-----------------------------------------------------------------------=== */ -#if !defined __X86INTRIN_H && !defined __IMMINTRIN_H -#error "Never use <rdseedintrin.h> directly; include <x86intrin.h> instead." +#ifndef __IMMINTRIN_H +#error "Never use <rdseedintrin.h> directly; include <immintrin.h> instead." #endif #ifndef __RDSEEDINTRIN_H @@ -17,23 +17,86 @@ /* Define the default attributes for the functions in this file. */ #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("rdseed"))) +/// Stores a hardware-generated 16-bit random value in the memory at \a __p. +/// +/// The random number generator complies with NIST SP800-90B and SP800-90C. +/// +/// \code{.operation} +/// IF HW_NRND_GEN.ready == 1 +/// Store16(__p, HW_NRND_GEN.data) +/// result := 1 +/// ELSE +/// Store16(__p, 0) +/// result := 0 +/// END +/// \endcode +/// +/// \headerfile <immintrin.h> +/// +/// This intrinsic corresponds to the \c RDSEED instruction. +/// +/// \param __p +/// Pointer to memory for storing the 16-bit random number. +/// \returns 1 if a random number was generated, 0 if not. static __inline__ int __DEFAULT_FN_ATTRS _rdseed16_step(unsigned short *__p) { - return __builtin_ia32_rdseed16_step(__p); + return (int) __builtin_ia32_rdseed16_step(__p); } +/// Stores a hardware-generated 32-bit random value in the memory at \a __p. +/// +/// The random number generator complies with NIST SP800-90B and SP800-90C. +/// +/// \code{.operation} +/// IF HW_NRND_GEN.ready == 1 +/// Store32(__p, HW_NRND_GEN.data) +/// result := 1 +/// ELSE +/// Store32(__p, 0) +/// result := 0 +/// END +/// \endcode +/// +/// \headerfile <immintrin.h> +/// +/// This intrinsic corresponds to the \c RDSEED instruction. +/// +/// \param __p +/// Pointer to memory for storing the 32-bit random number. +/// \returns 1 if a random number was generated, 0 if not. static __inline__ int __DEFAULT_FN_ATTRS _rdseed32_step(unsigned int *__p) { - return __builtin_ia32_rdseed32_step(__p); + return (int) __builtin_ia32_rdseed32_step(__p); } #ifdef __x86_64__ +/// Stores a hardware-generated 64-bit random value in the memory at \a __p. +/// +/// The random number generator complies with NIST SP800-90B and SP800-90C. +/// +/// \code{.operation} +/// IF HW_NRND_GEN.ready == 1 +/// Store64(__p, HW_NRND_GEN.data) +/// result := 1 +/// ELSE +/// Store64(__p, 0) +/// result := 0 +/// END +/// \endcode +/// +/// \headerfile <immintrin.h> +/// +/// This intrinsic corresponds to the \c RDSEED instruction. +/// +/// \param __p +/// Pointer to memory for storing the 64-bit random number. +/// \returns 1 if a random number was generated, 0 if not. static __inline__ int __DEFAULT_FN_ATTRS _rdseed64_step(unsigned long long *__p) { - return __builtin_ia32_rdseed64_step(__p); + return (int) __builtin_ia32_rdseed64_step(__p); } #endif |