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Re-engage SSE2 ASM for SHA-256 (GH# 674) 

I'm not usre where exactly the break occured, but it was probably due to the BASE+SIMD rewrite. Thanks to tesbayda for tracking it down.
pull/676/head
Jeffrey Walton 2018-06-29 21:02:53 -04:00
parent 9a75d09ca4
commit e18de4d5f9
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
2 changed files with 3 additions and 3 deletions
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2
sha.cpp
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@ -710,7 +710,7 @@ size_t SHA256::HashMultipleBlocks(const word32 *input, size_t length)
return length & (SHA256::BLOCKSIZE - 1); return length & (SHA256::BLOCKSIZE - 1);
} }
#endif #endif
#if CRYPTOPP_SSE2_ASM_AVAILABLE #if CRYPTOPP_SSE2_ASM_AVAILABLE || CRYPTOPP_X64_MASM_AVAILABLE
if (HasSSE2()) if (HasSSE2())
{ {
const size_t res = length & (SHA256::BLOCKSIZE - 1); const size_t res = length & (SHA256::BLOCKSIZE - 1);

4
x64dll.asm
View File

@ -676,7 +676,7 @@ ret
GCM_AuthenticateBlocks_64K ENDP GCM_AuthenticateBlocks_64K ENDP
ALIGN 8 ALIGN 8
SHA256_SSE_HashMultipleBlocks PROC FRAME SHA256_HashMultipleBlocks_SSE2 PROC FRAME
rex_push_reg rsi rex_push_reg rsi
push_reg rdi push_reg rdi
push_reg rbx push_reg rbx
@ -1962,7 +1962,7 @@ pop rbx
pop rdi pop rdi
pop rsi pop rsi
ret ret
SHA256_SSE_HashMultipleBlocks ENDP SHA256_HashMultipleBlocks_SSE2 ENDP
_TEXT ENDS _TEXT ENDS
END END