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Re: [trunk][patch] fix another invalid sharing in see
> fails:
>
> (insn 30 10 28 2 /home/espindola/test.i:4 (parallel [
> (set (subreg:SI (reg:DI 60) 0)
> (ashiftrt:SI (reg:SI 62 [ a ])
> (const_int 13 [0xd])))
> (clobber (reg:CC 17 flags))
> ]) 522 {*ashrsi3_1} (expr_list:REG_UNUSED (reg:CC 17 flags)
> (expr_list:REG_EQUAL (div:SI (subreg:SI (reg:DI 60) 0)
> (const_int 8192 [0x2000]))
> (nil))))
> /home/espindola/test.i:6: error: shared rtx
> (subreg:SI (reg:DI 60) 0)
copy_rtx_if_shared_1 has a code path similar to reset_used_flags:
switch (code)
{
...
case INSN:
case JUMP_INSN:
case CALL_INSN:
case NOTE:
case BARRIER:
/* The chain of insns is not being copied. */
return;
}
Looks like we have to use copy_rtx or change copy_rtx_if_shared to
look into INSN.
Cheers,
--
Rafael Avila de Espindola
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