/usr/lib64/gcc/x86_64-suse-linux/4.5/cc1 -m32 -fpreprocessed xg.i -quiet
-dumpbase xg.c -mtune=generic -march=i586 -auxbase xg -g -O2 -O2 -Wall -version
-fomit-frame-pointer -fmessage-length=0 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -fno-strict-aliasing -o xg.s --param
ggc-min-expand=100 --param ggc-min-heapsize=131072
uses more than 2GB of virtual memory when on a 32bit host (and thus fails
to compile). On a 64bit host we top at >3GB (I need to re-try on a host
with more memory, I'm swapping to death right now).
Related to PR41371, the offender is var-tracking. Without -g we top
at 600MB on the 64bit host.
I suppose we inline all single-call static functions into Init_libxg
which makes it biiiig (and containing lots of calls).
--
Summary: [4.5 Regression] var-tracking uses up all virtual memory
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: memory-hog
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
GCC target triplet: i?86-linux
BugsThisDependsOn: 41371
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43058
