https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49263
--- Comment #49 from Oleg Endo <olegendo at gcc dot gnu.org> --- (In reply to Alexander Klepikov from comment #48) > I made tests (including *.c files from GCC testsuite) and everything looks > fine for now. But I'm still afraid that pattern for 'ashrsi3_libcall_expand' > is too wide. It is possible to narrow it down as much as possible by adding > distinct attribute and set when emitting 'ashrsi3_libcall_collapsed' and > then check it and fail if not set: > For this kind of change, the whole GCC test suite needs to be ran for at least big/little -m2,-m4 variants. +(define_insn_and_split "ashrsi3_libcall_expand" + [(parallel [(set (match_operand:SI 0 "arith_reg_dest") + (ashiftrt:SI (match_operand:SI 1 "arith_reg_operand") + (match_operand:SI 2 "const_int_operand")) + )(clobber (reg:SI T_REG)) + (clobber (reg:SI PR_REG)) + ])] The 'parallel' construct looks strange.
