https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115169
Bug ID: 115169
Summary: [14 regression] ICE in loongarch bootstrap with
checking: RTL check: expected code 'reg', have
'const_int' in rhs_regno, at rtl.h:1934
Product: gcc
Version: 14.1.1
Status: UNCONFIRMED
Keywords: ice-checking
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: matoro_gcc_bugzilla at matoro dot tk
Target Milestone: ---
Host: loongarch64-unknown-linux-gnu
Target: loongarch64-unknown-linux-gnu
Build: loongarch64-unknown-linux-gnu
There seems to be a couple RISC-V items with similar stack traces but unsure if
they are the same bug. Trying to upgrade 13 -> 14 on a 3A5000 and I get a
SIGILL from genmodes, so fell back to checking build and unfortunately
encountered an ICE there as well. Unsure if this is the cause of the SIGILL or
not, so one bug at a time.
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/build/./gcc/xgcc
-B/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/build/./gcc/
-B/usr/loongarch64-unknown-linux-gnu/bin/
-B/usr/loongarch64-unknown-linux-gnu/lib/ -isystem
/usr/loongarch64-unknown-linux-gnu/include -isystem
/usr/loongarch64-unknown-linux-gnu/sys-include -fmultiflags -fno-checking -g
-ggdb3 -O2 -O2 -g -ggdb3 -O2 -DIN_GCC -W -Wall -Wno-narrowing
-Wwrite-strings -Wcast-qual -Wno-format -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic -g
-DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fno-stack-clash-protection
-fpic -I. -I. -I../.././gcc
-I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc
-I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/.
-I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/../gcc
-I/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/../include
-DHAVE_CC_TLS -o _mulvdi3.o -MT _mulvdi3.o -MD -MP -MF _mulvdi3.dep
-DL_mulvdi3 -c
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/libgcc2.c
-fvisibility=hidden -DHIDE_EXPORTS
during RTL pass: ce1
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/libgcc2.c:
In function ‘__mulvti3’:
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/libgcc/libgcc2.c:376:1:
internal compiler error: RTL check: expected code 'reg', have 'const_int' in
rhs_regno, at rtl.h:1934
376 | }
| ^
0x55555776ca7b rtl_check_failed_code1(rtx_def const*, rtx_code, char const*,
int, char const*)
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/rtl.cc:770
0x55555777e457 rhs_regno(rtx_def const*)
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/rtl.h:1934
0x5555584be663 rhs_regno(rtx_def const*)
./genrtl.h:38
0x5555584be663 loongarch_expand_conditional_move(rtx_def**)
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/config/loongarch/loongarch.cc:5355
0x5555589f5293 gen_movdicc(rtx_def*, rtx_def*, rtx_def*, rtx_def*)
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/config/loongarch/loongarch.md:2556
0x555557e74ceb maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/optabs.cc:8275
0x555557e74ceb emit_conditional_move_1
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/optabs.cc:5249
0x555557e751c7 emit_conditional_move(rtx_def*, rtx_comparison, rtx_def*,
rtx_def*, machine_mode, int)
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/optabs.cc:5162
0x555558c3c02b noce_emit_cmove
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:1777
0x555558c4062b noce_try_cmove_arith
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:2363
0x555558c4644f noce_process_if_block
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:4161
0x555558c4644f noce_find_if_block
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:4716
0x555558c479c3 find_if_header
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:4921
0x555558c479c3 if_convert
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:6068
0x555558c48b97 rest_of_handle_if_conversion
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:6133
0x555558c48b97 execute
/var/tmp/portage/sys-devel/gcc-14.1.1_p20240518/work/gcc-14-20240518/gcc/ifcvt.cc:6172
