> > You should still use --with-ppl --with-cloog when you run configure. > > I guess the current instructions are not very good. I have tried it again. This time I configure it with flags: --enable-languages=c,c++ --with-gmp --with-mpfr --with-ppl --with-cloog --prefix=/usr/local/gcc4.5 And the problem remains. When I compile a source file with flag -floop-parallelize-all, I got the following error: sorry, unimplemented: Graphite loop optimizations cannot be used The following is my input and output: [zhouxu@zhouxu test]$ gcc --v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/local/gcc4.5/libexec/gcc/i686-pc-linux-gnu/4.5.0/lto-wrapper Target: i686-pc-linux-gnu Configured with: ./configure --enable-languages=c,c++ --with-gmp --with-mpfr --with-ppl --with-cloog --prefix=/usr/local/gcc4.5 Thread model: posix gcc version 4.5.0 (GCC) [zhouxu@zhouxu test]$ gcc -O2 -ftree-parallelize-loops=4 -floop-parallelize-all -fdump-tree-graphite-all -g block.c block.c:1:0: sorry, unimplemented: Graphite loop optimizations cannot be used What is the problem? Thank you! -- zhouxu
