From: Pan Li <pan2...@intel.com> There are 2 local array in function optimize_mode_switching. It will be initialized conditionally at the beginning but then always consumed in another loop. It may trigger the warning maybe-uninitialized, and may result in build failure when enable werror, aka warning as error.
This patch will initialize the local array to zero explictly when declaration. Signed-off-by: Pan Li <pan2...@intel.com> gcc/ChangeLog: * mode-switching.cc (entity_map): Initialize the array to zero. (bb_info): Ditto. --- gcc/mode-switching.cc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/gcc/mode-switching.cc b/gcc/mode-switching.cc index 2d2818f5674..64ae2bc29c3 100644 --- a/gcc/mode-switching.cc +++ b/gcc/mode-switching.cc @@ -499,8 +499,8 @@ optimize_mode_switching (void) bool need_commit = false; static const int num_modes[] = NUM_MODES_FOR_MODE_SWITCHING; #define N_ENTITIES ARRAY_SIZE (num_modes) - int entity_map[N_ENTITIES]; - struct bb_info *bb_info[N_ENTITIES]; + int entity_map[N_ENTITIES] = {}; + struct bb_info *bb_info[N_ENTITIES] = {}; int i, j; int n_entities = 0; int max_num_modes = 0; -- 2.34.1