https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111171
Bug ID: 111171
Summary: [14 Regression] ICE: in decompose, at rtl.h:2297 at
-O1 on riscv64-unknown-linux-gnu
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: riscv64-unknown-linux-gnu
Build: x86_64-pc-linux-gnu
Created attachment 55802
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55802&action=edit
reduced testcase
Compiler output:
$ riscv64-unknown-linux-gnu-gcc -O testcase.c
during RTL pass: combine
testcase.c: In function 'foo':
testcase.c:9:1: internal compiler error: in decompose, at rtl.h:2297
9 | }
| ^
0x124765c wi::int_traits<std::pair<rtx_def*, machine_mode> >::decompose(long*,
unsigned int, std::pair<rtx_def*, machine_mode> const&)
/repo/gcc-trunk/gcc/rtl.h:2297
0x124765c wide_int_ref_storage<false,
true>::wide_int_ref_storage<std::pair<rtx_def*, machine_mode>
>(std::pair<rtx_def*, machine_mode> const&)
/repo/gcc-trunk/gcc/wide-int.h:1030
0x131b806 generic_wide_int<wide_int_ref_storage<false, true>
>::generic_wide_int<std::pair<rtx_def*, machine_mode> >(std::pair<rtx_def*,
machine_mode> const&)
/repo/gcc-trunk/gcc/wide-int.h:788
0x131b806 simplify_const_unary_operation(rtx_code, machine_mode, rtx_def*,
machine_mode)
/repo/gcc-trunk/gcc/simplify-rtx.cc:2131
0x132d54d simplify_context::simplify_unary_operation(rtx_code, machine_mode,
rtx_def*, machine_mode)
/repo/gcc-trunk/gcc/simplify-rtx.cc:889
0x132d54d simplify_context::simplify_gen_unary(rtx_code, machine_mode,
rtx_def*, machine_mode)
/repo/gcc-trunk/gcc/simplify-rtx.cc:360
0x2297961 simplify_gen_unary(rtx_code, machine_mode, rtx_def*, machine_mode)
/repo/gcc-trunk/gcc/rtl.h:3520
0x2297961 simplify_comparison
/repo/gcc-trunk/gcc/combine.cc:13136
0x229ad85 combine_simplify_rtx
/repo/gcc-trunk/gcc/combine.cc:6176
0x229cf6b subst
/repo/gcc-trunk/gcc/combine.cc:5609
0x229d0cc subst
/repo/gcc-trunk/gcc/combine.cc:5536
0x229d0cc subst
/repo/gcc-trunk/gcc/combine.cc:5536
0x22a1dac try_combine
/repo/gcc-trunk/gcc/combine.cc:3339
0x22a9d2d combine_instructions
/repo/gcc-trunk/gcc/combine.cc:1300
0x22a9d2d rest_of_handle_combine
/repo/gcc-trunk/gcc/combine.cc:15063
0x22a9d2d execute
/repo/gcc-trunk/gcc/combine.cc:15107
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.
$ riscv64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-riscv64/bin/riscv64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-3502-20230827001656-g7997f0d35ef-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-unknown-linux-gnu/14.0.0/lto-wrapper
Target: riscv64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --with-isa-spec=2.2
--with-sysroot=/usr/riscv64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=riscv64-unknown-linux-gnu
--with-ld=/usr/bin/riscv64-unknown-linux-gnu-ld
--with-as=/usr/bin/riscv64-unknown-linux-gnu-as --disable-multilib
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-3502-20230827001656-g7997f0d35ef-checking-yes-rtl-df-extra-riscv64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20230827 (experimental) (GCC)
