https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64829
Bug ID: 64829
Summary: [ARM] ICE at -O3 in vect_get_vec_def_for_stmt_copy
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: clyon at gcc dot gnu.org
Compiling the attached testcase at -O3 results in an ICE.
GCC is configured as:
--target=arm-none-linux-gnueabihf
--with-mode=arm --with-cpu=cortex-a9 --with-fpu=neon
Compiling at -O2 -Wall warns that several local variables are unintialized.
Initializing val1=0 makes the ICE disappear.
arm-none-linux-gnueabihf-gcc -Wall gcc_vect_bug.c -c -O3
gcc_vect_bug.c: In function 'fail':
gcc_vect_bug.c:22:5: internal compiler error: in
vect_get_vec_def_for_stmt_copy, at tree-vect-stmts.c:1598
int fail ( const RMColorData * pInColor,
^
0xfb2c34 vect_get_vec_def_for_stmt_copy(vect_def_type, tree_node*)
/media/lyon/9be1a707-5b7f-46da-9106-e084a5dbb011/ssd/src/GCC/sources/gcc-fsf/trunk/gcc/tree-vect-stmts.c:1598
0xfb2d3d vect_get_vec_defs_for_stmt_copy
/media/lyon/9be1a707-5b7f-46da-9106-e084a5dbb011/ssd/src/GCC/sources/gcc-fsf/trunk/gcc/tree-vect-stmts.c:1624
0xfbeac3 vectorizable_operation
/media/lyon/9be1a707-5b7f-46da-9106-e084a5dbb011/ssd/src/GCC/sources/gcc-fsf/trunk/gcc/tree-vect-stmts.c:4910
0xfc658d vect_transform_stmt(gimple_statement_base*, gimple_stmt_iterator*,
bool*, _slp_tree*, _slp_instance*)
/media/lyon/9be1a707-5b7f-46da-9106-e084a5dbb011/ssd/src/GCC/sources/gcc-fsf/trunk/gcc/tree-vect-stmts.c:7273
0xfdbcf3 vect_transform_loop(_loop_vec_info*)
/media/lyon/9be1a707-5b7f-46da-9106-e084a5dbb011/ssd/src/GCC/sources/gcc-fsf/trunk/gcc/tree-vect-loop.c:6156
0xff1deb vectorize_loops()
/media/lyon/9be1a707-5b7f-46da-9106-e084a5dbb011/ssd/src/GCC/sources/gcc-fsf/trunk/gcc/tree-vectorizer.c:497
0xee638f execute
/media/lyon/9be1a707-5b7f-46da-9106-e084a5dbb011/ssd/src/GCC/sources/gcc-fsf/trunk/gcc/tree-ssa-loop.c:295
