https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114184
Bug ID: 114184
Summary: ICE: in extract_insn, at recog.cc:2812 (unrecognizable
insn ) with -Og -mavx512f and __builtin_memmove()
_BitInt(256)
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
CC: jakub at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 57582
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57582&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -Og -mavx512f testcase.c
testcase.c: In function 'foo':
testcase.c:7:1: error: unrecognizable insn:
7 | }
| ^
(insn 5 2 6 2 (set (reg/v:XF 98 [ d ])
(subreg:XF (const_vector:V32QI [
(const_int -107 [0xffffffffffffff95])
(const_int -120 [0xffffffffffffff88])
(const_int 89 [0x59])
(const_int 42 [0x2a])
(const_int 38 [0x26])
(const_int -16 [0xfffffffffffffff0])
(const_int -60 [0xffffffffffffffc4])
(const_int -62 [0xffffffffffffffc2])
(const_int 0 [0]) repeated x24
]) 0)) "testcase.c":6:3 -1
(nil))
during RTL pass: vregs
testcase.c:7:1: internal compiler error: in extract_insn, at recog.cc:2812
0x807075 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/repo/gcc-trunk/gcc/rtl-error.cc:108
0x8070f2 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/repo/gcc-trunk/gcc/rtl-error.cc:116
0x7f5f61 extract_insn(rtx_insn*)
/repo/gcc-trunk/gcc/recog.cc:2812
0x113331d instantiate_virtual_regs_in_insn
/repo/gcc-trunk/gcc/function.cc:1611
0x113331d instantiate_virtual_regs
/repo/gcc-trunk/gcc/function.cc:1994
0x113331d execute
/repo/gcc-trunk/gcc/function.cc:2041
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.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-9247-20240229194557-gc6d4fb0062c-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-9247-20240229194557-gc6d4fb0062c-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240301 (experimental) (GCC)
