https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105462
Bug ID: 105462
Summary: ice in set_range_info_raw, at tree-ssanames.cc:356
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 52919
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52919&action=edit
C source code
The attached C code, with compiler flag -O2, does this:
$ /home/dcb/gcc/results.20220430.asan.ubsan/bin/gcc -c -w -O2 bug807.c
during GIMPLE pass: vrp
atan.c: In function ‘mpfr_atan’:
atan.c:279:1: internal compiler error: in set_range_info_raw, at
tree-ssanames.cc:356
0x8ad950 set_range_info_raw(tree_node*, value_range_kind,
generic_wide_int<wide_int_ref_storage<false, true> > const&,
generic_wide_int<wide_int_ref_storage<false, true> > const&)
../../trunk.git/gcc/tree-ssanames.cc:356
0x305f39a set_range_info
../../trunk.git/gcc/tree-ssanames.cc:414
The previous compiler seemed fine:
$ /home/dcb/gcc/results.20220429.asan.ubsan/bin/gcc -c -w -O2 bug807.c
$
The bug first appears sometime between git hash 3d8d093e820b10a4 and
66d1e440e14377a3.
I have a reduction already running.
