[Bug target/63442] New: [AArch64] ICE with ubsan/overflow-int128.c test

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63442

            Bug ID: 63442
           Summary: [AArch64] ICE with ubsan/overflow-int128.c test
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: clyon at gcc dot gnu.org

testsuite/c-c++-common/ubsan/overflow-int128.c causes an ICE on AArch64:

/aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-aarch64-none-linux-gnu/gcc3/gcc/xgcc
-B/aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-aarch64-none-linux-gnu/gcc3/gcc/
/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/testsuite/c-c++-common/ubsan/overflow-int128.c
gcc_tg.o  
-B/aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-aarch64-none-linux-gnu/gcc3/aarch64-none-linux-gnu/./libsanitizer/

-B/aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-aarch64-none-linux-gnu/gcc3/aarch64-none-linux-gnu/./libsanitizer/ubsan/

-L/aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-aarch64-none-linux-gnu/gcc3/aarch64-none-linux-gnu/./libsanitizer/ubsan/.libs
-fno-diagnostics-show-caret -fdiagnostics-color=never    -O0 
-fsanitize=signed-integer-overflow -DSTACK_SIZE=16384       -Wl,-wrap,exit
-Wl,-wrap,_exit -Wl,-wrap,main -Wl,-wrap,abort -lm    -o ./overflow-int128.exe 
  (timeout = 800)
/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/testsuite/c-c++-common/ubsan/overflow-int128.c:
In function 'main':
/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/testsuite/c-c++-common/ubsan/overflow-int128.c:14:27:
internal compiler error: in copy_to_mode_reg, at explow.c:635
0x728188 copy_to_mode_reg(machine_mode, rtx_def*)
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/explow.c:635
0x95cafb prepare_cmp_insn
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/optabs.c:4206
0x95d863 emit_cmp_and_jump_insns(rtx_def*, rtx_def*, rtx_code, rtx_def*,
machine_mode, int, rtx_def*, int)
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/optabs.c:4381
0x86b8e6 ubsan_expand_si_overflow_addsub_check(tree_code,
gimple_statement_base*)
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/internal-fn.c:303
0x65da05 expand_gimple_stmt_1
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cfgexpand.c:3218
0x65df3f expand_gimple_stmt
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cfgexpand.c:3370
0x65e7df expand_gimple_basic_block
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cfgexpand.c:5209
0x661a93 execute
        /aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cfgexpand.c:5815
Please submit a full bug report,

Where GCC is confired with --target aarch64-none-linux-gnu