Change order of loops in multiplication

1 files changed, 3 insertions, 3 deletions

diff --git a/multiply.h b/multiply.h
index a13437a..db19e5b 100644
--- a/multiply.h
+++ b/multiply.h
@@ -501,11 +501,11 @@ INTGEMM_SSSE3 inline static void InnerINTGEMM_SSSE3(
   assert(reinterpret_cast<uintptr_t>(B) % sizeof(Integer) == 0); \
   const int simd_width = width / sizeof(Integer); \
   auto callback_impl = callbacks::CallbackImpl<cpu_type, Callback>(callback); \
-  const Integer *B0_col = reinterpret_cast<const Integer*>(B); \
   /*Go over 8 columns of B at a time.*/ \
-  for (Index B0_colidx = 0; B0_colidx != B_cols; B0_col += 8 * simd_width, B0_colidx += 8) { \
+  for (Index A_rowidx = 0; A_rowidx < A_rows; ++A_rowidx) { \
+    const Integer *B0_col = reinterpret_cast<const Integer*>(B); \
+    for (Index B0_colidx = 0; B0_colidx != B_cols; B0_col += 8 * simd_width, B0_colidx += 8) { \
     /*Process one row of A at a time.  Doesn't seem to be faster to do multiple rows of A at once.*/ \
-    for (Index A_rowidx = 0; A_rowidx < A_rows; ++A_rowidx) { \
       /*Iterate over shared (inner) dimension.*/ \
       const Integer *A_live = reinterpret_cast<const Integer *>(A + A_rowidx * width); \
       const Integer *A_end = A_live + simd_width; \