https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79030
Bug ID: 79030
Summary: Compilation failure due to virtual memory exhaustion
Product: gcc
Version: 6.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: aurelien at aurel32 dot net
Target Milestone: ---
Host: mipsel-linux-gnu
Target: mipsel-linux-gnu
Build: mipsel-linux-gnu
The attached testcase fails to compile on a 32-bit MIPS machine due to virtual
memory exhaustion. The machine has plenty of available memory, but the virtual
address space is limited to 2GB:
$ g++ -O2 -fno-var-tracking-assignments -g -c ceph_dencoder.ii
cc1plus: out of memory allocating 3195232 bytes after a total of 32043008 bytes
$
However it compiles successfully when tunning ggc-min-expand:
$ g++ -O2 -fno-var-tracking-assignments -g -c ceph_dencoder.ii --param
ggc-min-expand=5
$
