https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117185
Bug ID: 117185
Summary: Bootstrap fails with ICE: in operator[], at vec.h:910
with LRA on non-BWX alpha
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: glaubitz at physik dot fu-berlin.de
CC: macro at orcam dot me.uk, mcree at orcon dot net.nz,
sjames at gcc dot gnu.org, ubizjak at gmail dot com
Target Milestone: ---
Host: alpha-*-*
When trying to bootstrap GCC with the default baseline (non-BWX) on alpha with
LRA enabled, the build fails with:
during RTL pass: reload
../../../libgomp/team.c: In function 'gomp_team_start':
mv -f .deps/bar.Tpo .deps/bar.Plo
../../../libgomp/team.c:940:1: internal compiler error: in operator[], at
vec.h:910
940 | }
| ^
yes
checking for /home/glaubitz/gcc.git/build/./gcc/xgcc
-B/home/glaubitz/gcc.git/build/./gcc/ -B/usr/local/alpha-unknown-linux-gnu/bin/
-B/usr/local/alpha-unknown-linux-gnu/lib/ -isystem
/usr/local/alpha-unknown-linux-gnu/include -isystem
/usr/local/alpha-unknown-linux-gnu/sys-include -fno-checking option to accept
ISO C89... libtool: compile: /home/glaubitz/gcc.git/build/./gcc/xgcc
-B/home/glaubitz/gcc.git/build/./gcc/ -B/usr/local/alpha-unknown-linux-gnu/bin/
-B/usr/local/alpha-unknown-linux-gnu/lib/ -isystem
/usr/local/alpha-unknown-linux-gnu/include -isystem
/usr/local/alpha-unknown-linux-gnu/sys-include -fno-checking -DHAVE_CONFIG_H
-I. -I../../../libgomp -I../../../libgomp/config/linux/alpha
-I../../../libgomp/config/linux -I../../../libgomp/config/posix
-I../../../libgomp -I../../../libgomp/../include -Wall -ftls-model=initial-exec
-pthread -DUSING_INITIAL_EXEC_TLS -g -O2 -mieee -MT oacc-init.lo -MD -MP -MF
.deps/oacc-init.Tpo -c ../../../libgomp/oacc-init.c -o oacc-init.o >/dev/null
2>&1
libtool: compile: /home/glaubitz/gcc.git/build/./gcc/xgcc
-B/home/glaubitz/gcc.git/build/./gcc/ -B/usr/local/alpha-unknown-linux-gnu/bin/
-B/usr/local/alpha-unknown-linux-gnu/lib/ -isystem
/usr/local/alpha-unknown-linux-gnu/include -isystem
/usr/local/alpha-unknown-linux-gnu/sys-include -fno-checking -DHAVE_CONFIG_H
-I. -I../../../libgomp -I../../../libgomp/config/linux/alpha
-I../../../libgomp/config/linux -I../../../libgomp/config/posix
-I../../../libgomp -I../../../libgomp/../include -Wall -ftls-model=initial-exec
-pthread -DUSING_INITIAL_EXEC_TLS -g -O2 -mieee -MT ordered.lo -MD -MP -MF
.deps/ordered.Tpo -c ../../../libgomp/ordered.c -o ordered.o >/dev/null 2>&1
libtool: compile: /home/glaubitz/gcc.git/build/./gcc/xgcc
-B/home/glaubitz/gcc.git/build/./gcc/ -B/usr/local/alpha-unknown-linux-gnu/bin/
-B/usr/local/alpha-unknown-linux-gnu/lib/ -isystem
/usr/local/alpha-unknown-linux-gnu/include -isystem
/usr/local/alpha-unknown-linux-gnu/sys-include -fno-checking -DHAVE_CONFIG_H
-I. -I../../../libgomp -I../../../libgomp/config/linux/alpha
-I../../../libgomp/config/linux -I../../../libgomp/config/posix
-I../../../libgomp -I../../../libgomp/../include -Wall -ftls-model=initial-exec
-pthread -DUSING_INITIAL_EXEC_TLS -g -O2 -mieee -MT loop_ull.lo -MD -MP -MF
.deps/loop_ull.Tpo -c ../../../libgomp/loop_ull.c -o loop_ull.o >/dev/null 2>&1
0x1232b5047 internal_error(char const*, ...)
../../gcc/diagnostic-global-context.cc:517
0x1232676eb fancy_abort(char const*, int, char const*)
../../gcc/diagnostic.cc:1533
0x120be06f3 vec<reg_equivs_t, va_gc, vl_embed>::operator[](unsigned int)
../../gcc/vec.h:910
0x121f4eb57 resolve_reload_operand(rtx_def*)
../../gcc/config/alpha/alpha.cc:684
0x122c6bd43 aligned_memory_operand(rtx_def*, machine_mode)
../../gcc/config/alpha/predicates.md:428
0x121f55a0b alpha_expand_mov_nobwx(machine_mode, rtx_def**)
../../gcc/config/alpha/alpha.cc:2294
0x122c4f6d7 gen_movqi(rtx_def*, rtx_def*)
../../gcc/config/alpha/alpha.md:4241
0x120bd8057 rtx_insn* insn_gen_fn::operator()<rtx_def*, rtx_def*>(rtx_def*,
rtx_def*) const
../../gcc/recog.h:442
0x120eb866f emit_move_insn_1(rtx_def*, rtx_def*)
../../gcc/expr.cc:4577
0x120eb9747 emit_move_insn(rtx_def*, rtx_def*)
../../gcc/expr.cc:4747
0x12137c6bb lra_emit_move(rtx_def*, rtx_def*)
../../gcc/lra.cc:509
none needed
checking whether /home/glaubitz/gcc.git/build/./gcc/xgcc
-B/home/glaubitz/gcc.git/build/./gcc/ -B/usr/local/alpha-unknown-linux-gnu/bin/
-B/usr/local/alpha-unknown-linux-gnu/lib/ -isystem
/usr/local/alpha-unknown-linux-gnu/include -isystem
/usr/local/alpha-unknown-linux-gnu/sys-include -fno-checking understands -c
and -o together... 0x1213a523b curr_insn_transform
../../gcc/lra-constraints.cc:4750
0x1213a8ed7 lra_constraints(bool)
../../gcc/lra-constraints.cc:5496
0x121384443 lra(_IO_FILE*, int)
../../gcc/lra.cc:2445
0x1212fa08f do_reload
../../gcc/ira.cc:5977
0x1212fa9a7 execute
../../gcc/ira.cc:6165
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Passing --with-cpu=ev56 (BWX) makes the build succeed.
