https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101294
Bug ID: 101294
Summary: [12 Regression] ICE: in maybe_legitimize_operand, at
optabs.c:7614 with -mavx
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 51101
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51101&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -mavx testcase.c
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:7:3: internal compiler error: in maybe_legitimize_operand, at
optabs.c:7614
7 | __builtin_shufflevector ((U){}, (V){}, 3);
| ^~~~~~~~~~~~~~~~~~~~~~~
0x6f80cd maybe_legitimize_operand
/repo/gcc-trunk/gcc/optabs.c:7614
0x6f80cd maybe_legitimize_operands(insn_code, unsigned int, unsigned int,
expand_operand*)
/repo/gcc-trunk/gcc/optabs.c:7751
0xf562c9 maybe_gen_insn(insn_code, unsigned int, expand_operand*)
/repo/gcc-trunk/gcc/optabs.c:7770
0xf63f68 maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/repo/gcc-trunk/gcc/optabs.c:7813
0xf63f68 expand_insn(insn_code, unsigned int, expand_operand*)
/repo/gcc-trunk/gcc/optabs.c:7844
0xcfc2ab store_constructor
/repo/gcc-trunk/gcc/expr.c:7086
0xcfd995 expand_constructor
/repo/gcc-trunk/gcc/expr.c:8563
0xce9e8a expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/repo/gcc-trunk/gcc/expr.c:10748
0xcf71cc store_expr(tree_node*, rtx_def*, int, bool, bool)
/repo/gcc-trunk/gcc/expr.c:5994
0xcf898d expand_assignment(tree_node*, tree_node*, bool)
/repo/gcc-trunk/gcc/expr.c:5729
0xbb1377 expand_gimple_stmt_1
/repo/gcc-trunk/gcc/cfgexpand.c:3943
0xbb1377 expand_gimple_stmt
/repo/gcc-trunk/gcc/cfgexpand.c:4041
0xbb7b8b expand_gimple_basic_block
/repo/gcc-trunk/gcc/cfgexpand.c:6083
0xbb9ab7 execute
/repo/gcc-trunk/gcc/cfgexpand.c:6809
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-r12-1975-20210702102426-g496e1d6a1f9-checking-yes-rtl-df-extra-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
--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-r12-1975-20210702102426-g496e1d6a1f9-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20210702 (experimental) (GCC)
