Updating Opus to a pre-release of 1.1

silk/fixed/solve_LS_FIX.c

Index: silk/fixed/solve_LS_FIX.c
diff --git a/silk/fixed/solve_LS_FIX.c b/silk/fixed/solve_LS_FIX.c
index fb913abeeba65b5d0b38e88d188d65ef5915c344..1a39018d8b04295bd9e2b87ea53bc021d5407f5a 100644
--- a/silk/fixed/solve_LS_FIX.c
+++ b/silk/fixed/solve_LS_FIX.c
@@ -8,11 +8,11 @@ this list of conditions and the following disclaimer.
 - Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
-- Neither the name of Internet Society, IETF or IETF Trust, nor the 
+- Neither the name of Internet Society, IETF or IETF Trust, nor the
 names of specific contributors, may be used to endorse or promote
 products derived from this software without specific prior written
 permission.
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
@@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE.
 #endif
 
 #include "main_FIX.h"
+#include "stack_alloc.h"
 #include "tuning_parameters.h"
 
 /*****************************/
@@ -79,11 +80,13 @@ void silk_solve_LDL_FIX(
     opus_int32                      *x_Q16                                  /* O    Pointer to x solution vector                                                */
 )
 {
-    opus_int32 L_Q16[  MAX_MATRIX_SIZE * MAX_MATRIX_SIZE ];
+    VARDECL( opus_int32, L_Q16 );
     opus_int32 Y[      MAX_MATRIX_SIZE ];
     inv_D_t   inv_D[  MAX_MATRIX_SIZE ];
+    SAVE_STACK;
 
     silk_assert( M <= MAX_MATRIX_SIZE );
+    ALLOC( L_Q16, M * M, opus_int32 );
 
     /***************************************************
     Factorize A by LDL such that A = L*D*L',
@@ -107,6 +110,7 @@ void silk_solve_LDL_FIX(
     x = inv(L') * inv(D) * Y
     *****************************************************/
     silk_LS_SolveLast_FIX( L_Q16, M, Y, x_Q16 );
+    RESTORE_STACK;
 }
 
 static inline void silk_LDL_factorize_FIX(