https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109695
--- Comment #21 from David Binderman <dcb314 at hotmail dot com> --- Two cases, depending on the text of the warning: $ fgrep warning: mk.out | fgrep Wstack | fgrep -v "might be unbounded" | fgrep "usage is" | sort -rnk 6 ../../trunk.year/gcc/gimple-range-infer.cc:360:1: warning: stack usage is 410496 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-cache.cc:1682:1: warning: stack usage is 410496 bytes [-Wstack-usage=] ../../trunk.year/gcc/range-op.cc:2822:1: warning: stack usage is 204992 bytes [-Wstack-usage=] ../../trunk.year/gcc/range-op.cc:2556:1: warning: stack usage is 204960 bytes [-Wstack-usage=] ../../trunk.year/gcc/value-range.cc:2169:1: warning: stack usage is 164688 bytes [-Wstack-usage=] ../../trunk.year/gcc/range-op.cc:5085:1: warning: stack usage is 164576 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-edge.cc:117:1: warning: stack usage is 163936 bytes [-Wstack-usage=] ../../trunk.year/gcc/tree-ssa-loop-niter.cc:343:1: warning: stack usage is 123808 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-fold.cc:533:1: warning: stack usage is 123424 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-cache.cc:1293:1: warning: stack usage is 123312 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-fold.cc:734:1: warning: stack usage is 123232 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-cache.cc:1154:1: warning: stack usage is 123200 bytes [-Wstack-usage=] ../../trunk.year/gcc/range-op.cc:4851:1: warning: stack usage is 123056 bytes [-Wstack-usage=] $ and $ fgrep warning: mk.out | fgrep Wstack | fgrep -v "might be unbounded" | fgrep -v "usage is" | sort -rnk 7 ../../trunk.year/gcc/gimple-range-gori.cc:1465:1: warning: stack usage might be 205360 bytes [-Wstack-usage=] ../../trunk.year/gcc/range-op.cc:5135:1: warning: stack usage might be 165008 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-gori.cc:604:1: warning: stack usage might be 164352 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-gori.cc:743:1: warning: stack usage might be 164144 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-gori.cc:1187:1: warning: stack usage might be 123280 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-gori.cc:1077:1: warning: stack usage might be 123280 bytes [-Wstack-usage=] ../../trunk.year/gcc/gimple-range-fold.cc:897:1: warning: stack usage might be 123216 bytes [-Wstack-usage=] $ It appears that there are some large stack sizes in various parts of gcc.
