[Bug target/104511] New: [10/11/12 Regression] ICE: in emit_move_insn, at expr.cc:4010 with __builtin_convertvector() at -O

["zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104511

            Bug ID: 104511
           Summary: [10/11/12 Regression] ICE: in emit_move_insn, at
                    expr.cc:4010 with __builtin_convertvector() at -O
           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: powerpc64le-unknown-linux-gnu

Created attachment 52425
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52425&action=edit
reduced testcase

Compiler output:
$ powerpc64le-unknown-linux-gnu-gcc -O testcase.c -Wno-psabi
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:9:5: internal compiler error: in emit_move_insn, at expr.cc:4010
    9 |   D d = __builtin_convertvector (f, D);
      |     ^
0x64498b emit_move_insn(rtx_def*, rtx_def*)
        /repo/gcc-trunk/gcc/expr.cc:4010
0xa9421a expand_gimple_stmt_1
        /repo/gcc-trunk/gcc/cfgexpand.cc:3994
0xa9421a expand_gimple_stmt
        /repo/gcc-trunk/gcc/cfgexpand.cc:4028
0xa99da8 expand_gimple_basic_block
        /repo/gcc-trunk/gcc/cfgexpand.cc:6069
0xa9c0b7 execute
        /repo/gcc-trunk/gcc/cfgexpand.cc:6795
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.


$ powerpc64le-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-powerpc64le/bin/powerpc64le-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-7195-20220211112825-g72f8d228aff-checking-yes-rtl-df-extra-powerpc64le/bin/../libexec/gcc/powerpc64le-unknown-linux-gnu/12.0.1/lto-wrapper
Target: powerpc64le-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/powerpc64le-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=powerpc64le-unknown-linux-gnu
--with-ld=/usr/bin/powerpc64le-unknown-linux-gnu-ld
--with-as=/usr/bin/powerpc64le-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-7195-20220211112825-g72f8d228aff-checking-yes-rtl-df-extra-powerpc64le
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220211 (experimental) (GCC)