https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105068
Bug ID: 105068
Summary: ICE: in extract_constrain_insn, at recog.cc:2692 (insn
does not satisfy its constraints: ssse3_pshufbv16qi3)
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 52690
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52690&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -Og -fsanitize=thread -fstack-protector-all
-mavx512vl testcase.c
testcase.c: In function 'foo0':
testcase.c:44:1: error: insn does not satisfy its constraints:
44 | }
| ^
(insn 244 243 140 2 (set (reg:V16QI 44 xmm8 [142])
(unspec:V16QI [
(reg:V16QI 20 xmm0 [orig:82 c.0_1 ] [82])
(reg:V16QI 52 xmm16 [210])
] UNSPEC_PSHUFB)) "testcase.c":25:11 7140 {ssse3_pshufbv16qi3}
(nil))
during RTL pass: pro_and_epilogue
testcase.c:44:1: internal compiler error: in extract_constrain_insn, at
recog.cc:2692
0x76c594 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/repo/gcc-trunk/gcc/rtl-error.cc:108
0x76c61a _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/repo/gcc-trunk/gcc/rtl-error.cc:118
0x75b3fc extract_constrain_insn(rtx_insn*)
/repo/gcc-trunk/gcc/recog.cc:2692
0x12ea69b copyprop_hardreg_forward_1
/repo/gcc-trunk/gcc/regcprop.cc:826
0x12eb8d1 copyprop_hardreg_forward_bb_without_debug_insn(basic_block_def*)
/repo/gcc-trunk/gcc/regcprop.cc:1220
0x1355fd7 prepare_shrink_wrap
/repo/gcc-trunk/gcc/shrink-wrap.cc:451
0x1355fd7 try_shrink_wrapping(edge_def**, rtx_insn*)
/repo/gcc-trunk/gcc/shrink-wrap.cc:674
0x101840b thread_prologue_and_epilogue_insns()
/repo/gcc-trunk/gcc/function.cc:6047
0x1018ce2 rest_of_handle_thread_prologue_and_epilogue
/repo/gcc-trunk/gcc/function.cc:6532
0x1018ce2 execute
/repo/gcc-trunk/gcc/function.cc:6608
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-r12-7835-20220327001633-gd2906412ada-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.1/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
--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-r12-7835-20220327001633-gd2906412ada-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220327 (experimental) (GCC)
