http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53852
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |compile-time-hog, | |memory-hog Status|UNCONFIRMED |NEW Last reconfirmed| |2012-07-04 CC| |matz at gcc dot gnu.org, | |rguenth at gcc dot gnu.org Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-04 11:54:42 UTC --- From #20 0x00000000012171c0 in compute_deps (scop=0x1f16e50, pbbs=0x1fa6d70, must_raw=0x1f16e90, may_raw=0x1f16e98, must_raw_no_source=0x1f16ea0, may_raw_no_source=0x1f16ea8, must_war=0x1f16eb0, may_war=0x1f16eb8, must_war_no_source=0x1f16ec0, may_war_no_source=0x1f16ec8, must_waw=0x1f16ed0, may_waw=0x1f16ed8, must_waw_no_source=0x1f16ee0, may_waw_no_source=0x1f16ee8) at /space/rguenther/src/svn/trunk/gcc/graphite-dependences.c:471 471 res = isl_union_map_compute_flow (isl_union_map_copy (reads), we do not finish without allocating much much memory. from inside ISL it's compute_val_based_dependences that takes that much memory and compile-time.