[Bug target/126468] New: [14/15/16/17 Regression] ICE at -O2 on aarch64 during RTL pass: expand

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126468

            Bug ID: 126468
           Summary: [14/15/16/17 Regression] ICE at -O2 on aarch64 during
                    RTL pass: expand
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xxs_chy at outlook dot com
  Target Milestone: ---

Created attachment 65158
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65158&action=edit
case.c

Reproducer: https://godbolt.org/z/z3rT387TM

The reduced case is attached.

Dump at -O2:
during RTL pass: expand
reduced.c: In function ‘f1’:
reduced.c:51:11: internal compiler error: in expand_bitquery, at
internal-fn.cc:5807
   51 |     g31 = __builtin_clrsbll(g8);
      |           ^~~~~~~~~~~~~~~~~~~~~
0x272678d internal_error(char const*, ...)
       
/data/Projects/compiler-test-env/cte-work/src/gcc/gcc/diagnostic-global-context.cc:787
0xb121eb fancy_abort(char const*, int, char const*)
       
/data/Projects/compiler-test-env/cte-work/src/gcc/gcc/diagnostics/context.cc:1813
0x945f1e expand_bitquery
       
/data/Projects/compiler-test-env/cte-work/src/gcc/gcc/internal-fn.cc:5807
0xfd780f expand_CLRSB(internal_fn, gcall*)
       
/data/Projects/compiler-test-env/cte-work/src/gcc/gcc/internal-fn.cc:5817
0xd08e08 expand_call_stmt
        /data/Projects/compiler-test-env/cte-work/src/gcc/gcc/cfgexpand.cc:3155
0xd08e08 expand_gimple_stmt_1
        /data/Projects/compiler-test-env/cte-work/src/gcc/gcc/cfgexpand.cc:4273
0xd08e08 expand_gimple_stmt
        /data/Projects/compiler-test-env/cte-work/src/gcc/gcc/cfgexpand.cc:4420
0xd0ae47 expand_gimple_basic_block
        /data/Projects/compiler-test-env/cte-work/src/gcc/gcc/cfgexpand.cc:6537
0xd0d037 execute
        /data/Projects/compiler-test-env/cte-work/src/gcc/gcc/cfgexpand.cc:7288
/data/Projects/compiler-test-env/cte-work/toolchains/gcc/aarch64-linux-musl/libexec/gcc/aarch64-linux-musl/17.0.0/cc1
-quiet reduced.c -quiet -dumpdir a- -dumpbase reduced.c -dumpbase-ext .c
-mlittle-endian -mabi=lp64 -O2 -o /tmp/ccE3ecSV.s