https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101007
Bug ID: 101007
Summary: ICE: in extract_insn, at recog.c:2770 (unrecognizable
insn) with -mno-sse2
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: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 50974
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50974&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -mno-sse2 testcase.c
testcase.c: In function 'foo':
testcase.c:10:1: error: unrecognizable insn:
10 | }
| ^
(insn 14 7 9 2 (set (reg:V4SI 89)
(vec_concat:V4SI (mem/c:V2SI (symbol_ref:DI ("v") [flags 0x2] <var_decl
0x7f0b625aeb40 v>) [1 v+0 S8 A128])
(const_vector:V2SI [
(const_int 0 [0]) repeated x2
]))) "testcase.c":9:12 -1
(nil))
during RTL pass: ira
testcase.c:10:1: internal compiler error: in extract_insn, at recog.c:2770
0x71519c _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/repo/gcc-trunk/gcc/rtl-error.c:108
0x71521f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/repo/gcc-trunk/gcc/rtl-error.c:116
0x70394a extract_insn(rtx_insn*)
/repo/gcc-trunk/gcc/recog.c:2770
0xe75c70 ira_remove_insn_scratches(rtx_insn*, bool, _IO_FILE*, rtx_def*
(*)(rtx_def*))
/repo/gcc-trunk/gcc/ira.c:5238
0xe789e5 remove_scratches
/repo/gcc-trunk/gcc/ira.c:5282
0xe789e5 ira
/repo/gcc-trunk/gcc/ira.c:5606
0xe789e5 execute
/repo/gcc-trunk/gcc/ira.c:5965
Please submit a full bug report,
with preprocessed source if appropriate.
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-r12-1353-20210609220850-gf8b067056ba-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/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 --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-1353-20210609220850-gf8b067056ba-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20210610 (experimental) (GCC)
