[Bug target/106532] New: riscv fails to build enabling ZBA/ZBB/ZBC/ZBS by default for 32bit

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106532

            Bug ID: 106532
           Summary: riscv fails to build enabling ZBA/ZBB/ZBC/ZBS by
                    default for 32bit
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: build, ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: riscv32-*-elf

Error message:
../../../src/libgcc/soft-fp/muldf3.c: In function ‘__muldf3’:
../../../src/libgcc/soft-fp/muldf3.c:51:1: error: unrecognizable insn:
   51 | }
      | ^
(insn 430 429 431 29 (set (reg:SI 332)
        (const_int 2048 [0x800])) "../../../src/libgcc/soft-fp/muldf3.c":46:3
-1
     (expr_list:REG_EQUAL (const_int 2048 [0x800])
        (nil)))
during RTL pass: vregs
../../../src/libgcc/soft-fp/muldf3.c:51:1: internal compiler error: in
extract_insn, at recog.cc:2791
# If this is the top-level multilib, build all the other