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Re: Dependent Labels Question
On 11/04/11 15:37, Hans-Peter Nilsson wrote:
> On Thu, 3 Nov 2011, Iyer, Balaji V wrote:
>> Is it possible to make sure that the "LABELX" occurs right
>> after the "Call some_function" instruction (and the instruction
>> scheduler moves the label with the call INSN)? I insert the
>> label right after the call is expanded and LABELX is being moved
>> above the Call instruction by the schedule_insns function.
>
> Is emitting the label in port-specific code together with the
> call insn (trigged by a punctuation like "%&" for i386) not an
> option?
Some ports do that kind of thing. You must also define the
cannot_copy_insn_p hook to make sure that only one of these labels gets
emitted. In general however you don't want to do this since it prevents
optimizations.
Bernd