I have used the following configuration Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/opt/gcc/libexec/gcc/x86_64-unknown-linux-gnu/4.8.1/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc_4_8_1/configure --prefix=/opt/gcc --with-gmp=/opt/gmp-5.1.3 --with-mpfr=/opt/mpfr-3.1.2 --with-mpc=/opt/mpc-1.0.1 --enable-languages=c,c++ --with-cloog=/opt/cloog-0.18.0 --with-isl=/opt/isl-0.11.1 Thread model: posix gcc version 4.8.1 (GCC) I tried using using -floop-block and -floop-interchange optimization flags on simple program with for loops. I don't find any difference in the optimized assembly code that is generated. I have enabled O1 optimization level and disabled all the flags. I have only enabled -floop-block and -floop-interchange. Should I enable any more options for this to work? On Fri, Nov 29, 2013 at 5:23 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 29 November 2013 22:32, Ashwath Kumar Chandrasekaran wrote: >> Are graphite loop transforms implemented in GCC-4.8.1. > > Yes. > >> Should I configure and build GCC in a different way. > > You didn't say how you configured it, so noone can say if you need to > do it differently.
