https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106586
Bug ID: 106586
Summary: riscv32 still broke with zba_zbb_zbc_zbs, ICE in
do_SUBST in C++ code
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
Target: riscv
/home/apinski/src/toolchain-riscv/riscv-build/./gcc/xgcc -shared-libgcc
-B/home/apinski/src/toolchain-riscv/riscv-build/./gcc -nostdinc++
-L/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/src
-L/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/src/.libs
-L/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/libsupc++/.libs
-nostdinc
-B/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/newlib/
-isystem
/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/newlib/targ-include
-isystem /home/apinski/src/toolchain-riscv/src/newlib/libc/include
-B/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libgloss/riscv32
-L/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libgloss/libnosys
-L/home/apinski/src/toolchain-riscv/src/libgloss/riscv32
-B/home/apinski/src/toolchain-riscv/riscv-build/../marvelldpu-tools/riscv32-marvelldpu-elf/bin/
-B/home/apinski/src/toolchain-riscv/riscv-build/../marvelldpu-tools/riscv32-marvelldpu-elf/lib/
-isystem
/home/apinski/src/toolchain-riscv/riscv-build/../marvelldpu-tools/riscv32-marvelldpu-elf/include
-isystem
/home/apinski/src/toolchain-riscv/riscv-build/../marvelldpu-tools/riscv32-marvelldpu-elf/sys-include
-L/home/apinski/src/toolchain-riscv/riscv-build/./ld
-I/home/apinski/src/toolchain-riscv/src/libstdc++-v3/../libgcc
-I/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/include/riscv32-marvelldpu-elf
-I/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/include
-I/home/apinski/src/toolchain-riscv/src/libstdc++-v3/libsupc++ -std=gnu++11
-fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi=2
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections
-frandom-seed=cow-sstream-inst.lo -g -O2 -c
../../../../../src/libstdc++-v3/src/c++11/cow-sstream-inst.cc -o
cow-sstream-inst.o -freport-bug
during RTL pass: combine
In file included from
/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/include/sstream:1218,
from
../../../../../src/libstdc++-v3/src/c++11/sstream-inst.cc:34,
from
../../../../../src/libstdc++-v3/src/c++11/cow-sstream-inst.cc:30:
/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/include/bits/sstream.tcc:
In member function ‘void std::basic_stringbuf<_CharT, _Traits,
_Alloc>::_M_pbump(char_type*, char_type*, off_type) [with _CharT = char;
_Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’:
/home/apinski/src/toolchain-riscv/riscv-build/riscv32-marvelldpu-elf/libstdc++-v3/include/bits/sstream.tcc:286:5:
internal compiler error: in do_SUBST, at combine.cc:701
286 | }
| ^
0x8e268f do_SUBST
../../src/gcc/combine.cc:700
0x1918186 subst
../../src/gcc/combine.cc:5579
0x191807a subst
../../src/gcc/combine.cc:5532
0x191807a subst
../../src/gcc/combine.cc:5532
0x191b4e7 try_combine
../../src/gcc/combine.cc:3299
0x1921c2b combine_instructions
../../src/gcc/combine.cc:1410
0x1921c2b rest_of_handle_combine
../../src/gcc/combine.cc:14978
0x1921c2b execute
../../src/gcc/combine.cc:15023
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