Remove unrolled loops
[openssl.git] / crypto / ec / curve448 / arch_32 / arch_intrinsics.h
index af574cb0a90f2e0907aaa1f35075c0ab272ee446..48081c77170b089e3672e428611e6a0dfa0fddf3 100644 (file)
  * Originally written by Mike Hamburg
  */
 
-#ifndef __ARCH_ARCH_32_ARCH_INTRINSICS_H__
-# define __ARCH_ARCH_32_ARCH_INTRINSICS_H__
+#ifndef HEADER_ARCH_32_ARCH_INTRINSICS_H
+# define HEADER_ARCH_32_ARCH_INTRINSICS_H
+
+#include "internal/constant_time_locl.h"
 
 # define ARCH_WORD_BITS 32
 
-static ossl_inline uint32_t word_is_zero(uint32_t a)
-{
-    /* let's hope the compiler isn't clever enough to optimize this. */
-    return (((uint64_t)a) - 1) >> 32;
-}
+#define word_is_zero(a)     constant_time_is_zero_32(a)
 
 static ossl_inline uint64_t widemul(uint32_t a, uint32_t b)
 {
     return ((uint64_t)a) * b;
 }
 
-#endif                          /* __ARCH_ARCH_32_ARCH_INTRINSICS_H__ */
+#endif                          /* HEADER_ARCH_32_ARCH_INTRINSICS_H */