Hello, I would like to use the loop blocking optimization provided by the flag -floop-block. I tried this command for compiling command 1: gcc -O1 -S test.c -o output1.s command 2: gcc -O1 -fverbose-asm -floop-block -S test.c -o output2.s I compared output1.s and output2.s but found no difference. I used simple matrix multiplication program. I am using GCC 4.8.1. I built it with cloog 0.18.0 and isl 0.11.1. Do I need to additional flags during compilation for the loop blocking to work? Please help. Thanks and Regards, Ashwath.
