https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63767
Bug ID: 63767
Summary: Excessive memory usage/crash on compilation
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: sasha.levin at oracle dot com
CC: rguenther at suse dot de
On the trunk branch I'm seeing excessive memory usage (reaching 400GB) followed
by a crash:
CC net/core/sock.o
gcc: internal compiler error: Killed (program cc1)
0x40bf6c execute
../../gcc/gcc.c:2908
0x410477 driver::do_spec_on_infiles() const
../../gcc/gcc.c:7529
0x403223 driver::main(int, char**)
../../gcc/gcc.c:6796
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
It always happens when compiling the Linux Kernel net/core/sock.c . I've attach
the preprocessed source file.
This issue was bisected to the following commit:
commit d0eb9b3dcd3d5c6ff85aaff9753c187423aeb764
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Nov 6 09:07:39 2014 +0000
2014-11-06 Richard Biener <rguent...@suse.de>
* match.pd: Implement bitwise binary and unary simplifications
from tree-ssa-forwprop.c.
* fold-const.c (fold_unary_loc): Remove them here.
(fold_binary_loc): Likewise.
* tree-ssa-forwprop.c (simplify_not_neg_expr): Remove.
(truth_valued_ssa_name): Likewise.
(lookup_logical_inverted_value): Likewise.
(simplify_bitwise_binary_1): Likewise.
(hoist_conversion_for_bitop_p): Likewise.
(simplify_bitwise_binary_boolean): Likewise.
(simplify_bitwise_binary): Likewise.
(pass_forwprop::execute): Remove calls to simplify_not_neg_expr
and simplify_bitwise_binary.
* genmatch.c (dt_node::append_true_op): Use safe_as_a for parent.
(decision_tree::insert): Also insert non-expressions.
* gcc.dg/tree-ssa/forwprop-28.c: Adjust scanning for the
desired transform.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@217178
138bc75d-0d04-0410-961f-82ee72b054a4
My gcc build was using this configuration:
../configure --prefix=/home/sasha/gcc-inst/ --with-arch=native
--with-tune=native --enable-languages=c --enable-lto --enable-gold
--enable-stage1-languages=c
