Abhishek Shrivastav abhishek.shrivasta...@gmail.com wrote on 31/05/2009
16:44:34:
In this case, I think that Outer loop could be vectorized as there is
no dependency in the loop,the access pattern is simple enough and
there is unit stride in both the loops. Current version 4.4.* is not
In this case, I think that Outer loop could be vectorized as there is
no dependency in the loop,the access pattern is simple enough and
there is unit stride in both the loops. Current version 4.4.* is not
doing outer loop vectorization.
On Tue, May 26, 2009 at 5:57 PM, Ira Rosen i...@il.ibm.com
gcc-ow...@gcc.gnu.org wrote on 25/05/2009 21:53:41:
for a loop like
1 for(i=0;iN;i++)
2 for(j=0;jN;j++)
3 a[i][j] = a[i][j]+b[i][j];
GCC 4.3.* is unable to get the information for the inner loop that
array reference 'a' is alias of each other and
for a loop like
1 for(i=0;iN;i++)
2 for(j=0;jN;j++)
3 a[i][j] = a[i][j]+b[i][j];
GCC 4.3.* is unable to get the information for the inner loop that
array reference 'a' is alias of each other and generates code for
runtime aliasing check during vectorization. Is
