https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109508
Bug ID: 109508 Summary: [13 Regression] ICE: in extract_insn, at recog.cc:2791 with -mcpu=sifive-s76 on riscv64 Product: gcc Version: 13.0 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 Created attachment 54855 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54855&action=edit reduced testcase Compiler output: $ riscv64-unknown-linux-gnu-gcc -mcpu=sifive-s76 testcase.c testcase.c: In function 'foo': testcase.c:9:1: error: unrecognizable insn: 9 | } | ^ (insn 16 15 17 2 (set (reg:DI 146) (if_then_else:DI (ne:DI (reg:DI 147) (const_int 0 [0])) (const_int 0 [0]) (const_int 6 [0x6]))) -1 (nil)) during RTL pass: vregs testcase.c:9:1: internal compiler error: in extract_insn, at recog.cc:2791 0x7a1b18 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl-error.cc:108 0x7a1b94 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl-error.cc:116 0x7932ca extract_insn(rtx_insn*) /repo/gcc-trunk/gcc/recog.cc:2791 0xd1ae6f instantiate_virtual_regs_in_insn /repo/gcc-trunk/gcc/function.cc:1611 0xd1ae6f instantiate_virtual_regs /repo/gcc-trunk/gcc/function.cc:1985 0xd1ae6f execute /repo/gcc-trunk/gcc/function.cc:2034 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-r13-7168-20230413170248-ga1afdc6e2aa-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-r13-7168-20230413170248-ga1afdc6e2aa-checking-yes-rtl-df-extra-riscv64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.0.1 20230413 (experimental) (GCC)