------- Additional Comments From dje at gcc dot gnu dot org 2005-04-15 23:54 ------- debug_immediate_uses() does not seem right after the reciprocal transformation:
BEFORE D.478_11 : --> single use. x_14 = D.478_11 / pretmp.3_54; pretmp.3_54 : -->2 uses. x_14 = D.478_11 / pretmp.3_54; D.479_13 = pretmp.3_54; AFTER D.478_11 : -->2 uses. x_14 = D.478_11 * reciptmp.7_42; x_14 = D.478_11 / pretmp.3_54; reciptmp.7_42 : --> single use. x_14 = D.478_11 * reciptmp.7_42; pretmp.3_54 : -->3 uses. reciptmp.7_42 = 1.0e+0 / pretmp.3_54; x_14 = D.478_11 / pretmp.3_54; D.479_13 = pretmp.3_54; Why are the original division stmts still present? If the immediate uses still exist in the list but the statements were overwritten, that might cause problems. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21048
