On Fri, Apr 2, 2010 at 8:47 PM, Roman Kononov <ro...@binarylife.net> wrote: > Hi, > > r157834 of the trunk made compilation time almost 8(eight!) times > longer. The time went from 38 to 291 seconds. > > $ svnversion ~/src/gcc > 157833 > $ make -C ~/src/gcc install > ... > $ /usr/bin/time g++ -std=c++0x -O2 -g -Wall -Werror -Wno-unused \ > -Wno-parentheses -I../ check.cpp -o check -MMD -lrt > 37.65user 0.56system 0:38.26elapsed 99%CPU (0avgtext+0avgdata \ > 0maxresident)k > 0inputs+0outputs (0major+85545minor)pagefaults 0swaps > > $ svnversion ~/src/gcc > 157834 > $ make -C ~/src/gcc install > ... > $ /usr/bin/time g++ -std=c++0x -O2 -g -Wall -Werror -Wno-unused \ > -Wno-parentheses -I../ check.cpp -o check -MMD -lrt > 290.90user 0.63system 4:51.56elapsed 99%CPU (0avgtext+0avgdata \ > 0maxresident)k > 0inputs+0outputs (0major+101971minor)pagefaults 0swaps > > $ g++ -dumpmachine > x86_64-unknown-linux-gnu > > Configured by > $ ./configure --prefix=$HOME/gcc --disable-multilib > > Would it be acceptable to revert c157834 or it fixes an important bug? > It is unclear from the commit log message and the 43593 bugzilla report. > I did not notice any influence of c157834 to the compiled program > performance.
The patch is about debuginfo. Can you file a bugzilla and attach preprocessed source for the testcase? Thanks, Richard. > Thanks, > > Roman > > >
