X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fec%2Fcurve448%2Farch_64%2Farch_intrinsics.h;fp=crypto%2Fec%2Fcurve448%2Farch_64%2Farch_intrinsics.h;h=30be38e99b3e310f88f64e0b1c1e11cc25e9eb20;hp=ef611b903f8df1ac0601fd466089bf898ee6d5a2;hb=f684a2d783bf2c4728e65f83e0f89ec654f40e79;hpb=ceaa6b319e01bd1ac74e3e7c5662745d3d3b3b9d;ds=sidebyside

diff --git a/crypto/ec/curve448/arch_64/arch_intrinsics.h b/crypto/ec/curve448/arch_64/arch_intrinsics.h
index ef611b903f..30be38e99b 100644
--- a/crypto/ec/curve448/arch_64/arch_intrinsics.h
+++ b/crypto/ec/curve448/arch_64/arch_intrinsics.h
@@ -13,13 +13,11 @@
 #ifndef OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
 # define OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
 
+# include "internal/constant_time.h"
+
 # define ARCH_WORD_BITS 64
 
-static ossl_inline uint64_t word_is_zero(uint64_t a)
-{
-    /* let's hope the compiler isn't clever enough to optimize this. */
-    return (((__uint128_t) a) - 1) >> 64;
-}
+# define word_is_zero(a)     constant_time_is_zero_64(a)
 
 static ossl_inline uint128_t widemul(uint64_t a, uint64_t b)
 {