http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57268
Bug ID: 57268
Summary: c nested loops hang compiler
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: dhazeghi at yahoo dot com
Created attachment 30106
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30106&action=edit
testcase
The attached testcase causes current gcc trunk to hang on
x86_64-unknown-linux-gnu, when compiled at -O2 or higher optimization levels.
It compiles successfully with gcc 4.8. I have not succeeded in reducing the
testcase to a manageable size.
$ gcc-trunk -v
gcc-trunk (GCC) 4.9.0 20130513 (experimental) [trunk revision 198822]
...
$ gcc-trunk -Os -w test.c
$ gcc-4.8 -O2 -w test.c
$ gcc-trunk -O2 -w test.c
<hangs>
