http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59006
Bug ID: 59006
Summary: internal compiler error: in vect_transform_stmt, at
tree-vect-stmts.c:5963
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: regehr at cs dot utah.edu
CC: chenyang at cs dot utah.edu
regehr@regehr-M51AC:~/z/reduce/r121$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/regehr/z/compiler-install/gcc-r204391-install/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/regehr/z/compiler-source/gcc/configure
--prefix=/home/regehr/z/compiler-install/gcc-r204391-install
--enable-languages=c,c++ --enable-multilib
Thread model: posix
gcc version 4.9.0 20131105 (experimental) (GCC)
regehr@regehr-M51AC:~/z/reduce/r121$ cat small.c
int a[8], b;
void fn1(void) {
int c;
for (; b; b++) {
int d = a[b];
c = a[0] ? d : 0;
a[b] = c;
}
}
regehr@regehr-M51AC:~/z/reduce/r121$ gcc -O3 small.c -c
small.c: In function ‘fn1’:
small.c:3:6: internal compiler error: in vect_transform_stmt, at
tree-vect-stmts.c:5963
void fn1(void) {
^
0xb333d7 vect_transform_stmt(gimple_statement_d*, gimple_stmt_iterator_d*,
bool*, _slp_tree*, _slp_instance*)
/home/regehr/z/compiler-source/gcc/gcc/tree-vect-stmts.c:5963
0xb363d1 vect_transform_loop(_loop_vec_info*)
/home/regehr/z/compiler-source/gcc/gcc/tree-vect-loop.c:5882
0xb5352f vectorize_loops()
/home/regehr/z/compiler-source/gcc/gcc/tree-vectorizer.c:373
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.
