diff --git a/src/arch/x86/core/x86_bigint.c b/src/arch/x86/core/x86_bigint.c
index 6413b2f..9a25bda 100644
--- a/src/arch/x86/core/x86_bigint.c
+++ b/src/arch/x86/core/x86_bigint.c
@@ -75,17 +75,18 @@
 			 *
 			 *     a < 2^{n}, b < 2^{n} => ab < 2^{2n}
 			 */
-			__asm__ __volatile__ ( "mull %4\n\t"
-					       "addl %%eax, (%5,%2,4)\n\t"
-					       "adcl %%edx, 4(%5,%2,4)\n\t"
+			__asm__ __volatile__ ( "mull %5\n\t"
+					       "addl %%eax, (%6,%2,4)\n\t"
+					       "adcl %%edx, 4(%6,%2,4)\n\t"
 					       "\n1:\n\t"
-					       "adcl $0, 8(%5,%2,4)\n\t"
+					       "adcl $0, 8(%6,%2,4)\n\t"
 					       "inc %2\n\t"
 						       /* Does not affect CF */
 					       "jc 1b\n\t"
 					       : "=&a" ( discard_a ),
 						 "=&d" ( discard_d ),
-						 "=&r" ( index )
+						 "=&r" ( index ),
+						 "+m" ( *result )
 					       : "0" ( multiplicand_element ),
 						 "g" ( multiplier_element ),
 						 "r" ( result_elements ),
diff --git a/src/arch/x86/include/bits/bigint.h b/src/arch/x86/include/bits/bigint.h
index 4f1bc87..7443d6f 100644
--- a/src/arch/x86/include/bits/bigint.h
+++ b/src/arch/x86/include/bits/bigint.h
@@ -25,19 +25,22 @@
 static inline __attribute__ (( always_inline )) void
 bigint_init_raw ( uint32_t *value0, unsigned int size,
 		  const void *data, size_t len ) {
-	long pad_len = ( sizeof ( bigint_t ( size ) ) - len );
+	bigint_t ( size ) __attribute__ (( may_alias )) *value =
+		( ( void * ) value0 );
+	long pad_len = ( sizeof ( *value ) - len );
 	void *discard_D;
 	long discard_c;
 
 	/* Copy raw data in reverse order, padding with zeros */
 	__asm__ __volatile__ ( "\n1:\n\t"
-			       "movb -1(%2,%1), %%al\n\t"
+			       "movb -1(%3,%1), %%al\n\t"
 			       "stosb\n\t"
 			       "loop 1b\n\t"
 			       "xorl %%eax, %%eax\n\t"
-			       "mov %3, %1\n\t"
+			       "mov %4, %1\n\t"
 			       "rep stosb\n\t"
-			       : "=&D" ( discard_D ), "=&c" ( discard_c )
+			       : "=&D" ( discard_D ), "=&c" ( discard_c ),
+				 "+m" ( *value )
 			       : "r" ( data ), "g" ( pad_len ), "0" ( value0 ),
 				 "1" ( len )
 			       : "eax" );
@@ -53,6 +56,8 @@
 static inline __attribute__ (( always_inline )) void
 bigint_add_raw ( const uint32_t *addend0, uint32_t *value0,
 		 unsigned int size ) {
+	bigint_t ( size ) __attribute__ (( may_alias )) *value =
+		( ( void * ) value0 );
 	long index;
 	void *discard_S;
 	long discard_c;
@@ -60,11 +65,11 @@
 	__asm__ __volatile__ ( "xor %0, %0\n\t" /* Zero %0 and clear CF */
 			       "\n1:\n\t"
 			       "lodsl\n\t"
-			       "adcl %%eax, (%3,%0,4)\n\t"
+			       "adcl %%eax, (%4,%0,4)\n\t"
 			       "inc %0\n\t" /* Does not affect CF */
 			       "loop 1b\n\t"
 			       : "=&r" ( index ), "=&S" ( discard_S ),
-				 "=&c" ( discard_c )
+				 "=&c" ( discard_c ), "+m" ( *value )
 			       : "r" ( value0 ), "1" ( addend0 ), "2" ( size )
 			       : "eax" );
 }
@@ -79,6 +84,8 @@
 static inline __attribute__ (( always_inline )) void
 bigint_subtract_raw ( const uint32_t *subtrahend0, uint32_t *value0,
 		      unsigned int size ) {
+	bigint_t ( size ) __attribute__ (( may_alias )) *value =
+		( ( void * ) value0 );
 	long index;
 	void *discard_S;
 	long discard_c;
@@ -86,11 +93,11 @@
 	__asm__ __volatile__ ( "xor %0, %0\n\t" /* Zero %0 and clear CF */
 			       "\n1:\n\t"
 			       "lodsl\n\t"
-			       "sbbl %%eax, (%3,%0,4)\n\t"
+			       "sbbl %%eax, (%4,%0,4)\n\t"
 			       "inc %0\n\t" /* Does not affect CF */
 			       "loop 1b\n\t"
 			       : "=&r" ( index ), "=&S" ( discard_S ),
-				 "=&c" ( discard_c )
+				 "=&c" ( discard_c ), "+m" ( *value )
 			       : "r" ( value0 ), "1" ( subtrahend0 ),
 				 "2" ( size )
 			       : "eax" );
@@ -104,15 +111,18 @@
  */
 static inline __attribute__ (( always_inline )) void
 bigint_rol_raw ( uint32_t *value0, unsigned int size ) {
+	bigint_t ( size ) __attribute__ (( may_alias )) *value =
+		( ( void * ) value0 );
 	long index;
 	long discard_c;
 
 	__asm__ __volatile__ ( "xor %0, %0\n\t" /* Zero %0 and clear CF */
 			       "\n1:\n\t"
-			       "rcll $1, (%2,%0,4)\n\t"
+			       "rcll $1, (%3,%0,4)\n\t"
 			       "inc %0\n\t" /* Does not affect CF */
 			       "loop 1b\n\t"
-			       : "=&r" ( index ), "=&c" ( discard_c )
+			       : "=&r" ( index ), "=&c" ( discard_c ),
+				 "+m" ( *value )
 			       : "r" ( value0 ), "1" ( size ) );
 }
 
@@ -124,13 +134,15 @@
  */
 static inline __attribute__ (( always_inline )) void
 bigint_ror_raw ( uint32_t *value0, unsigned int size ) {
+	bigint_t ( size ) __attribute__ (( may_alias )) *value =
+		( ( void * ) value0 );
 	long discard_c;
 
 	__asm__ __volatile__ ( "clc\n\t"
 			       "\n1:\n\t"
-			       "rcrl $1, -4(%1,%0,4)\n\t"
+			       "rcrl $1, -4(%2,%0,4)\n\t"
 			       "loop 1b\n\t"
-			       : "=&c" ( discard_c )
+			       : "=&c" ( discard_c ), "+m" ( *value )
 			       : "r" ( value0 ), "0" ( size ) );
 }
 
@@ -239,6 +251,8 @@
 static inline __attribute__ (( always_inline )) void
 bigint_grow_raw ( const uint32_t *source0, unsigned int source_size,
 		  uint32_t *dest0, unsigned int dest_size ) {
+	bigint_t ( dest_size ) __attribute__ (( may_alias )) *dest =
+		( ( void * ) dest0 );
 	long pad_size = ( dest_size - source_size );
 	void *discard_D;
 	void *discard_S;
@@ -246,10 +260,10 @@
 
 	__asm__ __volatile__ ( "rep movsl\n\t"
 			       "xorl %%eax, %%eax\n\t"
-			       "mov %3, %2\n\t"
+			       "mov %4, %2\n\t"
 			       "rep stosl\n\t"
 			       : "=&D" ( discard_D ), "=&S" ( discard_S ),
-				 "=&c" ( discard_c )
+				 "=&c" ( discard_c ), "+m" ( *dest )
 			       : "g" ( pad_size ), "0" ( dest0 ),
 				 "1" ( source0 ), "2" ( source_size )
 			       : "eax" );
@@ -266,13 +280,15 @@
 static inline __attribute__ (( always_inline )) void
 bigint_shrink_raw ( const uint32_t *source0, unsigned int source_size __unused,
 		    uint32_t *dest0, unsigned int dest_size ) {
+	bigint_t ( dest_size ) __attribute__ (( may_alias )) *dest =
+		( ( void * ) dest0 );
 	void *discard_D;
 	void *discard_S;
 	long discard_c;
 
 	__asm__ __volatile__ ( "rep movsl\n\t"
 			       : "=&D" ( discard_D ), "=&S" ( discard_S ),
-				 "=&c" ( discard_c )
+				 "=&c" ( discard_c ), "+m" ( *dest )
 			       : "0" ( dest0 ), "1" ( source0 ),
 				 "2" ( dest_size )
 			       : "eax" );
@@ -289,15 +305,19 @@
 static inline __attribute__ (( always_inline )) void
 bigint_done_raw ( const uint32_t *value0, unsigned int size __unused,
 		  void *out, size_t len ) {
+	struct {
+		uint8_t bytes[len];
+	} __attribute__ (( may_alias )) *out_bytes = out;
 	void *discard_D;
 	long discard_c;
 
 	/* Copy raw data in reverse order */
 	__asm__ __volatile__ ( "\n1:\n\t"
-			       "movb -1(%2,%1), %%al\n\t"
+			       "movb -1(%3,%1), %%al\n\t"
 			       "stosb\n\t"
 			       "loop 1b\n\t"
-			       : "=&D" ( discard_D ), "=&c" ( discard_c )
+			       : "=&D" ( discard_D ), "=&c" ( discard_c ),
+				 "+m" ( *out_bytes )
 			       : "r" ( value0 ), "0" ( out ), "1" ( len )
 			       : "eax" );
 }