On Mon, Mar 14, 2011 at 10:23 AM, Peter Maydell <peter.mayd...@linaro.org> wrote: > On 21 February 2011 08:10, Paolo Bonzini <pbonz...@redhat.com> wrote: >> On 02/20/2011 06:32 PM, Peter Maydell wrote: >>> Some of qemu's code does seem to trigger rather excessive memory >>> use by gcc; for instance we've had problems with memory usage >>> building for ARM with gcc of target-sparc/translate.c wanting >>> gigabytes of RAM with some compiler flags: >>> https://bugs.launchpad.net/gcc-linaro/+bug/714921 >>> >>> I suspect it's all those large switch statements... >> >> It's on my todo list to report it to GCC, since this memory-hog behavior is >> a GCC regression. > > We've been working on this in Linaro, and the following two patches > have been posted upstream: > > http://gcc.gnu.org/ml/gcc-patches/2011-03/msg00193.html > http://gcc.gnu.org/ml/gcc-patches/2011-03/msg00255.html > > so you can probably cross that item off your todo list :-)
Interesting. Alexander Graf and I recently hit an out of memory when building translate.o on ppc64 host. It was solved by adding more RAM to the box but this patch looks nice too ;). Stefan
