------- Additional Comments From kazu at cs dot umass dot edu 2004-11-14 15:47 ------- I am doing a binary search right now, but it's probably Jeff's patch that causes this bug.
With his patch, GCC shares some CASE_LABEL_EXPR within one SWITCH_EXPR. When a basic block is copied, I don't think these shared CASE_LABEL_EXPR are properly updated. Specifically, it's possible that one CASE_LABEL_EXPR points to another CASE_LABEL_EXPR of another SWITCH_EXPR. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18478
