https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107988
Bug ID: 107988 Summary: [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) on aarch64-unknown-linux-gnu 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: aarch64-unknown-linux-gnu Created attachment 54026 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54026&action=edit reduced testcase Compiler output: $ aarch64-unknown-linux-gnu-gcc testcase.c testcase.c: In function 'foo': testcase.c:10:1: error: unrecognizable insn: 10 | } | ^ (insn 7 6 8 2 (set (reg:V16QI 97) (vec_concat:V16QI (unspec:V8QI [ (mem/c:V8HI (plus:DI (reg/f:DI 87 virtual-stack-vars) (const_int -16 [0xfffffffffffffff0])) [1 v+0 S16 A128]) (reg:V8HI 94) ] UNSPEC_ADDHN) (const_vector:V8QI [ (const_int 0 [0]) repeated x8 ]))) "testcase.c":8:5 -1 (nil)) during RTL pass: vregs testcase.c:10:1: internal compiler error: in extract_insn, at recog.cc:2791 0x7bdb48 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl-error.cc:108 0x7bdbc4 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl-error.cc:116 0x7ae76c extract_insn(rtx_insn*) /repo/gcc-trunk/gcc/recog.cc:2791 0xddd657 instantiate_virtual_regs_in_insn /repo/gcc-trunk/gcc/function.cc:1611 0xddd657 instantiate_virtual_regs /repo/gcc-trunk/gcc/function.cc:1985 0xddd657 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. $ aarch64-unknown-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r13-4497-20221206065114-g769370f3e2e-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/13.0.0/lto-wrapper Target: aarch64-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-sysroot=/usr/aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu --with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld --with-as=/usr/bin/aarch64-unknown-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r13-4497-20221206065114-g769370f3e2e-checking-yes-rtl-df-extra-aarch64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.0.0 20221206 (experimental) (GCC)