[Bug tree-optimization/98279] New: ICE in apply_scale with --param=hot-bb-frequency-fraction >= 2^31

[acoplan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98279

            Bug ID: 98279
           Summary: ICE in apply_scale with
                    --param=hot-bb-frequency-fraction >= 2^31
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: acoplan at gcc dot gnu.org
  Target Milestone: ---

The following fails:

$ cat test.c
int a() {}
$ aarch64-elf-gcc test.c -c -O --param=hot-bb-frequency-fraction=2147483648
during GIMPLE pass: cdce
test.c: In function 'a':
test.c:1:5: internal compiler error: in apply_scale, at profile-count.h:1082
    1 | int a() {}
      |     ^
0xcf2c8d profile_count::apply_scale(long, long) const
        /home/alecop01/toolchain/src/gcc/gcc/profile-count.h:1082
0xce6ed7 maybe_hot_count_p(function*, profile_count)
        /home/alecop01/toolchain/src/gcc/gcc/predict.c:175
0xce7459 maybe_hot_bb_p(function*, basic_block_def const*)
        /home/alecop01/toolchain/src/gcc/gcc/predict.c:193
0xce76c1 optimize_bb_for_size_p(basic_block_def const*)
        /home/alecop01/toolchain/src/gcc/gcc/predict.c:301
0xe11269 execute
        /home/alecop01/toolchain/src/gcc/gcc/tree-call-cdce.c:1195
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.

Related to PR98271 and PR98276 (both ICEs that occur when a --param is >=
2^31). Perhaps a meta-bug would be useful here?

Equally, perhaps I'm misunderstanding the contract for --param values: are
these meant to be user-facing or internal? I.e. is it expected that the
compiler ICEs if the user provides an unreasonable value for the param?