These two patches fix a bug with rem_usage(), after having removed the last element of a def-use list, tries to kill the defining instruction although only PSEUDO_REGs and PSEUDO_PHIs have one. Luc Van Oostenryck (2): add helper has_definition() fix rem_usage() linearize.h | 5 +++++ simplify.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) -- 2.29.2