https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69833
Bug ID: 69833 Summary: Warning during bootstrap of --with-build-config=bootstrap-asan Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: marxin at gcc dot gnu.org Target Milestone: --- Hello. It's probably false positive warning caused by load/store motion: $ ../configure --with-build-config=bootstrap-asan ../../gcc/tree-vect-patterns.c: In function ‘gimple* vect_recog_mask_conversion_pattern(vec<gimple*>*, tree_node**, tree_node**)’: ../../gcc/tree-vect-patterns.c:3582:34: error: ‘lhs’ may be used uninitialized in this function [-Werror=maybe-uninitialized] lhs = vect_recog_temp_ssa_var (TREE_TYPE (lhs), NULL); ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ Preparing a simple fix. Martin