https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40635
--- Comment #19 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Martin Sebor from comment #18) > The location is still present at g:45f4e2b01b82c72b3a11ff4ad184d7edcf0e63d4 > but is lost after: > > commit 9f55df63154a39d67ef5b24def7044bf87300831 > Author: Andrew Pinski <apin...@marvell.com> > Date: Tue Jun 1 01:05:09 2021 +0000 > > Replace conditional_replacement with match and simplify > > This is the first of series of patches to simplify phi-opt > to use match and simplify in many cases. This simplification > will more things to optimize. Yes this part is the missing part: - /* Set the locus to the first argument, unless is doesn't have one. */ - locus_0 = gimple_phi_arg_location (phi, 0); - locus_1 = gimple_phi_arg_location (phi, 1); - if (locus_0 == UNKNOWN_LOCATION) - locus_0 = locus_1; - gimple_set_location (new_stmt, locus_0); Let me look over the weekend.
