Clang builds a working 2.6.36 Kernel

Clang builds a working 2.6.36 Kernel

> compiles 100 times faster or runs 100 times faster?

Run time. The following code runs much faster when compiled clang++ (0.003s) than when compiled using g++ (1.593s):

#include <iostream>
#include <boost/thread.hpp>

#define len 1000000000L

static void f(unsigned long a, unsigned long b, unsigned long *va)
{
    for (*va = 0; a < b; a++)
        *va += a;
}
    
int main()
{
    unsigned long va = 0;
    boost::thread a(f, 0l,  2* len, &va);
    a.join();
    std::cout << va  << std::endl;
    return 0;
}