Fix GCC inline asm register constraint for SSE register

Also see https://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html

1 files changed, 1 insertions, 1 deletions

diff --git a/gcm.cpp b/gcm.cpp
index 2a05a6c5..32d286d4 100644
--- a/gcm.cpp
+++ b/gcm.cpp
@@ -86,7 +86,7 @@ static inline void GCM_Xor16_SSE2(byte *a, const byte *b, const byte *c)
 {

 #  if CRYPTOPP_SSE2_ASM_AVAILABLE && defined(__GNUC__)

     asm ("movdqa %1, %%xmm0; pxor %2, %%xmm0; movdqa %%xmm0, %0;"

-         : "=m" (a[0]) : "rm"(b[0]), "rm"(c[0]));

+         : "=xm" (a[0]) : "xm"(b[0]), "xm"(c[0]));

 #  else  // CRYPTOPP_SSE2_INTRIN_AVAILABLE

     _mm_store_si128(M128_CAST(a), _mm_xor_si128(

         _mm_load_si128(CONST_M128_CAST(b)),