https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105711
Bug ID: 105711
Summary: [12/13 Regression] ICE: in simplify_subreg, at
simplify-rtx.cc:7346 with -O2
--param=sccvn-max-alias-queries-per-access=0
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Created attachment 53027
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53027&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 --param=sccvn-max-alias-queries-per-access=0
testcase.c
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:6:5: internal compiler error: in simplify_subreg, at
simplify-rtx.cc:7346
6 | c /= 3040;
| ~~^~~~~~~
0x789ae6 simplify_context::simplify_subreg(machine_mode, rtx_def*,
machine_mode, poly_int<1u, unsigned long>)
/repo/gcc-trunk/gcc/simplify-rtx.cc:7346
0x138ff89 simplify_context::simplify_gen_subreg(machine_mode, rtx_def*,
machine_mode, poly_int<1u, unsigned long>)
/repo/gcc-trunk/gcc/simplify-rtx.cc:7624
0xfa0b6f simplify_gen_subreg(machine_mode, rtx_def*, machine_mode, poly_int<1u,
unsigned long>)
/repo/gcc-trunk/gcc/rtl.h:3534
0xfa0b6f extract_bit_field_as_subreg
/repo/gcc-trunk/gcc/expmed.cc:1621
0xfa64ee extract_bit_field_1
/repo/gcc-trunk/gcc/expmed.cc:1829
0xfa77c7 extract_bit_field(rtx_def*, poly_int<1u, unsigned long>, poly_int<1u,
unsigned long>, int, rtx_def*, machine_mode, machine_mode, bool, rtx_def**)
/repo/gcc-trunk/gcc/expmed.cc:2137
0xfc58aa read_complex_part(rtx_def*, bool)
/repo/gcc-trunk/gcc/expr.cc:3554
0xfd0c18 expand_assignment(tree_node*, tree_node*, bool)
/repo/gcc-trunk/gcc/expr.cc:5586
0xe85887 expand_gimple_stmt_1
/repo/gcc-trunk/gcc/cfgexpand.cc:3935
0xe85887 expand_gimple_stmt
/repo/gcc-trunk/gcc/cfgexpand.cc:4033
0xe8bb68 expand_gimple_basic_block
/repo/gcc-trunk/gcc/cfgexpand.cc:6085
0xe8dd17 execute
/repo/gcc-trunk/gcc/cfgexpand.cc:6811
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.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r13-723-20220524082011-g1adf11822bd-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r13-723-20220524082011-g1adf11822bd-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20220524 (experimental) (GCC)
