https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108892
Bug ID: 108892 Summary: [13 Regression] ICE: in curr_insn_transform, at lra-constraints.cc:4168 (unable to generate reloads for: {*mvconst_internal}) at -Og on riscv64 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 Target: riscv64-unknown-linux-gnu Created attachment 54507 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54507&action=edit reduced testcase Compiler output: $ riscv64-unknown-linux-gnu-gcc -Og testcase.c testcase.c: In function 'foo': testcase.c:23:1: error: unable to generate reloads for: 23 | } | ^ (insn 122 117 127 2 (set (reg:DI 157 [ _46 ]) (ior:DI (reg:DI 200) (reg:DI 251))) "testcase.c":14:5 177 {*mvconst_internal} (expr_list:REG_EQUIV (const_int 25769803782 [0x600000006]) (nil))) during RTL pass: reload testcase.c:23:1: internal compiler error: in curr_insn_transform, at lra-constraints.cc:4168 0x79094f _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl-error.cc:108 0x75103a curr_insn_transform /repo/gcc-trunk/gcc/lra-constraints.cc:4168 0xeca15b lra_constraints(bool) /repo/gcc-trunk/gcc/lra-constraints.cc:5215 0xeb18e4 lra(_IO_FILE*) /repo/gcc-trunk/gcc/lra.cc:2375 0xe62d09 do_reload /repo/gcc-trunk/gcc/ira.cc:5963 0xe62d09 execute /repo/gcc-trunk/gcc/ira.cc:6149 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-r13-6278-20230222135711-g3da77f217c8-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-unknown-linux-gnu/13.0.1/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-r13-6278-20230222135711-g3da77f217c8-checking-yes-rtl-df-extra-riscv64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.0.1 20230222 (experimental) (GCC)