On 09/22/12 06:51, Christopher Schmidt wrote: > Larry Evans <cppljev...@suddenlink.net> writes: >> I thought you'd find the following interesting. >> >> The 2 attached tuple.benchmark.time.COMPILER files show >> clang compiles the HORIZONTAL implementation at about >> the same speed as the VERTICAL implementation >> (TUPLE_TEST_IMPL:0 is HORZONTAL, TUPLE_TEST_IMP:1 is VERTICAL). >> >> 113.12(HORIZ) vs 114.29(VERT) >> >> In contrast, as noted in a previous email, the gcc compiler >> is *much* slower on the HORIZ implementation: >> >> 316.75(HORIZ) vs 91.19(VERT) > Wow, that's quiet a number. I think it might be a good idea to submit a > bug report, including both, pre-processed test files. IDK. WDYT? > > Christopher > The above was a private email I sent to Christopher. Since then, similar results were reported here:
http://article.gmane.org/gmane.comp.compilers.clang.devel/24145 So, I thought the g++ template implementors might be interested in figuring out why g++ is so much slower than clang. -regards, Larry
