[CRYPTO]: Help gcc optimize sha256/sha512 better.

27f7bfe1 · Jean-Luc Cooke · Hideaki Yoshifuji · 01477f1c · 27f7bfe1 · 27f7bfe1
Commit 27f7bfe1 authored Jan 27, 2004 by Jean-Luc Cooke Committed by Hideaki Yoshifuji Jan 27, 2004
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Showing with 4 additions and 4 deletions

crypto/sha256.c crypto/sha256.c +2 -2

crypto/sha512.c crypto/sha512.c +2 -2

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--- a/crypto/sha256.c
+++ b/crypto/sha256.c
@@ -34,12 +34,12 @@ struct sha256_ctx {

 static inline u32 Ch(u32 x, u32 y, u32 z)
 {
-	return ((x & y) ^ (~x & z));
+	return z ^ (x & (y ^ z));
 }

 static inline u32 Maj(u32 x, u32 y, u32 z)
 {
-	return ((x & y) ^ (x & z) ^ (y & z));
+	return (x & y) | (z & (x | y));
 }

 static inline u32 RORu32(u32 x, u32 y)

--- a/crypto/sha512.c
+++ b/crypto/sha512.c
@@ -34,12 +34,12 @@ struct sha512_ctx {

 static inline u64 Ch(u64 x, u64 y, u64 z)
 {
-        return ((x & y) ^ (~x & z));
+        return z ^ (x & (y ^ z));
 }

 static inline u64 Maj(u64 x, u64 y, u64 z)
 {
-        return ((x & y) ^ (x & z) ^ (y & z));
+        return (x & y) | (z & (x | y));
 }

 static inline u64 RORu64(u64 x, u64 y)