------- Additional Comments From dank at kegel dot com 2005-06-27 06:59 ------- I just reproduced this on two flavors of pentium 4 using -O3 -mtune=pentium. The regression is worse, sometimes much worse, with -fPIC.
Times for gcc-2.95.3, gcc-3.4.3, gcc-4.0.0, gcc-4.1-20050603: test run 1: /proc/cpuinfo: cpu family 15, model 2, Intel Pentium 4 CPU 2.80GHz. no -fPIC: 2.2, 2.7. 0.6. 0.6 seconds with fPIC: 2.2, 2.9, 2.9, 2.9 seconds test run 2: /proc/cpuinfo: cpu family 15, model 4, Intel Pentium 4 CPU 3.20GHz no -fPIC: 1.9, 3.2, 0.5, n/a seconds with fPIC: 1.9, 3.6, 3.6, n/a seconds -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19672
