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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109695] [14 Regression] crash in
 gimple_ranger::range_of_expr since r14-377-gc92b8be9b52b7e
Date: Thu, 04 May 2023 16:14:08 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109695

--- 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" | fg=
rep
"usage is"  | sort -rnk 6
../../trunk.year/gcc/gimple-range-infer.cc:360:1: warning: stack usage is
410496 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-cache.cc:1682:1: warning: stack usage is
410496 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/range-op.cc:2822:1: warning: stack usage is 204992 byt=
es
[-Wstack-usage=3D]
../../trunk.year/gcc/range-op.cc:2556:1: warning: stack usage is 204960 byt=
es
[-Wstack-usage=3D]
../../trunk.year/gcc/value-range.cc:2169:1: warning: stack usage is 164688
bytes [-Wstack-usage=3D]
../../trunk.year/gcc/range-op.cc:5085:1: warning: stack usage is 164576 byt=
es
[-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-edge.cc:117:1: warning: stack usage is 16=
3936
bytes [-Wstack-usage=3D]
../../trunk.year/gcc/tree-ssa-loop-niter.cc:343:1: warning: stack usage is
123808 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-fold.cc:533:1: warning: stack usage is 12=
3424
bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-cache.cc:1293:1: warning: stack usage is
123312 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-fold.cc:734:1: warning: stack usage is 12=
3232
bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-cache.cc:1154:1: warning: stack usage is
123200 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/range-op.cc:4851:1: warning: stack usage is 123056 byt=
es
[-Wstack-usage=3D]
$=20

and

$ fgrep warning: mk.out | fgrep Wstack | fgrep -v "might be unbounded" | fg=
rep
-v "usage is"  | sort -rnk 7
../../trunk.year/gcc/gimple-range-gori.cc:1465:1: warning: stack usage migh=
t be
205360 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/range-op.cc:5135:1: warning: stack usage might be 1650=
08
bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-gori.cc:604:1: warning: stack usage might=
 be
164352 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-gori.cc:743:1: warning: stack usage might=
 be
164144 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-gori.cc:1187:1: warning: stack usage migh=
t be
123280 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-gori.cc:1077:1: warning: stack usage migh=
t be
123280 bytes [-Wstack-usage=3D]
../../trunk.year/gcc/gimple-range-fold.cc:897:1: warning: stack usage might=
 be
123216 bytes [-Wstack-usage=3D]
$=20

It appears that there are some large stack sizes in various parts of gcc.=