[Bug c/105554] New: ICE: in emit_block_move_hints, at expr.cc:1829

["zhenyang.xu at uwaterloo dot ca" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105554

            Bug ID: 105554
           Summary: ICE: in emit_block_move_hints, at expr.cc:1829
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zhenyang.xu at uwaterloo dot ca
  Target Milestone: ---

$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/tmp.lx931ugYgb-gcc-builder/gcc/configure
--enable-languages=c,c++,lto --enable-checking-yes --enable-multiarch
--prefix=/scratch/software/gcc-trunk --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 13.0.0 20220510 (experimental) [master -gbb2921ab8] (GCC)

$ cat mutant_133870291_1648466141340.c
__attribute__((target_clones("arch=core-avx2", "default")))
a(__attribute__((__vector_size__(4 * sizeof(long)))) long) {}

$ gcc-trunk -O3 -g -Wall -Wextra -c mutant_133870291_1648466141340.c
mutant_133870291_1648466141340.c:2:1: warning: return type defaults to ‘int’
[-Wimplicit-int]
    2 | a(__attribute__((__vector_size__(4 * sizeof(long)))) long) {}
      | ^
mutant_133870291_1648466141340.c: In function ‘a’:
mutant_133870291_1648466141340.c:2:1: note: the ABI for passing parameters with
32-byte alignment has changed in GCC 4.6
mutant_133870291_1648466141340.c:2:61: warning: control reaches end of non-void
function [-Wreturn-type]
    2 | a(__attribute__((__vector_size__(4 * sizeof(long)))) long) {}
      |                                                             ^
mutant_133870291_1648466141340.c:2:1: warning: AVX vector argument without AVX
enabled changes the ABI [-Wpsabi]
    2 | a(__attribute__((__vector_size__(4 * sizeof(long)))) long) {}
      | ^
during RTL pass: expand
mutant_133870291_1648466141340.c:2:1: internal compiler error: in
emit_block_move_hints, at expr.cc:1829
0x726cd5 emit_block_move_hints(rtx_def*, rtx_def*, rtx_def*, block_op_methods,
unsigned int, long, unsigned long, unsigned long, unsigned long, bool, bool*,
bool)
        /tmp/tmp.lx931ugYgb-gcc-builder/gcc/gcc/expr.cc:1829
0xc29395 emit_block_move(rtx_def*, rtx_def*, rtx_def*, block_op_methods)
        /tmp/tmp.lx931ugYgb-gcc-builder/gcc/gcc/expr.cc:1915
0xc8dc82 assign_parm_setup_block
        /tmp/tmp.lx931ugYgb-gcc-builder/gcc/gcc/function.cc:3124
0xc8dc82 assign_parms
        /tmp/tmp.lx931ugYgb-gcc-builder/gcc/gcc/function.cc:3705
0xc8f602 expand_function_start(tree_node*)
        /tmp/tmp.lx931ugYgb-gcc-builder/gcc/gcc/function.cc:5161
0xafda98 execute
        /tmp/tmp.lx931ugYgb-gcc-builder/gcc/gcc/cfgexpand.cc:6691
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.