http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47737
Summary: [4.6 Regression] wrong code with -funswitch-loops
-fno-tree-dominator-opts -fgraphite-identity
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
CC: s...@gcc.gnu.org
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 23339
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23339
reduced testcase
Output:
$ gcc -v
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-170138-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-170138-lto-fortran-checking-yes-rtl-df/
--with-cloog --with-ppl --with-cloog-include=/usr/include/cloog-ppl/
Thread model: posix
gcc version 4.6.0 20110214 (experimental) (GCC)
$ gcc -O -funswitch-loops -fno-tree-dominator-opts -fgraphite-identity
testcase.c
$ ./a.out
Aborted
Tested revisions:
r170138 - fail
4.5.2 - OK
