https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63879
Bug ID: 63879
Summary: ICE compiling Linux Kernel fs/ext3/namei.c
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: mpolacek at gcc dot gnu.org
Created attachment 33978
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33978&action=edit
Preprocessed source
I'm seeing very high memory usage followed by:
{standard input}: Assembler messages:
{standard input}:2183: Warning: end of file not at end of a line; newline
inserted
{standard input}:4163: Error: number of operands mismatch for `movq'
{standard input}: Error: open CFI at the end of file; missing .cfi_endproc
directive
gcc: internal compiler error: Killed (program cc1)
0x40c3cc execute
../../gcc/gcc.c:2912
0x410917 driver::do_spec_on_infiles() const
../../gcc/gcc.c:7674
0x40322b driver::main(int, char**)
../../gcc/gcc.c:6911
I've bisected this issue down to:
commit 1043013c91c08e3d8cd665b3f960f658918d69fe
Author: mpolacek <mpolacek@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri Nov 14 11:57:05 2014 +0000
* fold-const.c (fold_negate_expr): Don't fold INTEGER_CST if
that overflows when SANITIZE_SI_OVERFLOW is on. Guard -(-A)
folding with TYPE_OVERFLOW_SANITIZED.
* c-c++-common/ubsan/overflow-negate-3.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@217556
138bc75d-0d04-0410-961f-82ee7
Preprocessed fs/ext3/namei.c attached.
