https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96544
Bug ID: 96544
Summary: ICE in simplify_gen_subreg_concatn, at
lower-subreg.c:717
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: powerpc-*-linux-gnu
gcc-11.0.0-alpha20200802 snapshot (g:6e46b3f3da5c03bc529b3690dd0995927feb9142)
ICEs when compiling gcc/testsuite/gcc.dg/pr94574.c w/ -O1 -fno-dce
-fno-tree-fre:
% powerpc-e300c3-linux-gnu-gcc-11.0.0 -O1 -fno-dce -fno-tree-fre -w -c
gcc/testsuite/gcc.dg/pr94574.c
during RTL pass: subreg2
gcc/testsuite/gcc.dg/pr94574.c: In function 'foo':
gcc/testsuite/gcc.dg/pr94574.c:15:1: internal compiler error: in
simplify_gen_subreg_concatn, at lower-subreg.c:717
15 | }
| ^
0x77b21d simplify_gen_subreg_concatn
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/lower-subreg.c:717
0x169048a resolve_simple_move
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/lower-subreg.c:1091
0x16917fb decompose_multiword_subregs
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/lower-subreg.c:1657
0x169229d execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/lower-subreg.c:1821
