Re: How to get GCC on par with ICC?

2018-06-06 Thread Ryan Burn
One case where ICC can generate much faster code sometimes is by using the nontemporal pragma [https://software.intel.com/en-us/node/524559] with loops. AFAIK, there's no such equivalent pragma in gcc [https://gcc.gnu.org/ml/gcc/2012-01/msg00028.html]. When I tried this simple example https://git

building gcc with macro support for gdb?

2015-12-02 Thread Ryan Burn
Is there any way to easily build a stage1 gcc with macro support for debugging? I tried setting CFLAGS, and CXXFLAGS to specify "-O0 -g3" via the command line before running configure, but that only includes those flags for some of the compilation steps. I was only successful after I manually edi