[git] GCRYPT - branch, master, updated. libgcrypt-1.5.0-367-g57b296e

[by Jussi Kivilinna]

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- Log -----------------------------------------------------------------
commit 57b296ea3a5204cd3711b7bf57c8fb14d8542402
Author: Jussi Kivilinna <jussi.kivilinna at iki.fi>
Date:   Thu Nov 7 12:24:04 2013 +0200

    Change 64-bit shift to 32-bit in AES AMD64 assembly
    
    * cipher/rijndael-amd64.S (do16bit_shr): Change 'shrq' to 'shrl'.
    --
    
    64-bit shift is not needed here as registers are used for 32-bit values.
    
    Signed-off-by: Jussi Kivilinna <jussi.kivilinna at iki.fi>

diff --git a/cipher/rijndael-amd64.S b/cipher/rijndael-amd64.S
index d360ea8..3b96889 100644
--- a/cipher/rijndael-amd64.S
+++ b/cipher/rijndael-amd64.S
@@ -101,7 +101,7 @@
 #define do16bit_shr(shf, op, source, tablemul, table1, dest1, table2, dest2, t0, t1) \
 	movzbl source ## bl,			t0 ## d; \
 	movzbl source ## bh,			t1 ## d; \
-	shrq $(shf),				source; \
+	shrl $(shf),				source ## d; \
 	op ## l table1(RTAB,t0,tablemul),	dest1 ## d; \
 	op ## l table2(RTAB,t1,tablemul),	dest2 ## d;
 

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Summary of changes:
 cipher/rijndael-amd64.S |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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