This is the mail archive of the mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: SSA identifiers

On Thu, Jun 27, 2013 at 8:52 PM, Andrew MacLeod <> wrote:
> On 06/27/2013 02:39 PM, Jakub Jelinek wrote:
>> in tree-ssanames.c:release_ssa_names() :
>> if (! SSA_NAME_IN_FREE_LIST (var))
>>      {
>>        tree saved_ssa_name_var = SSA_NAME_VAR (var);
>>        int saved_ssa_name_version = SSA_NAME_VERSION (var);
>>        use_operand_p imm = &(SSA_NAME_IMM_USE_NODE (var));
>> <..>
>> /* Hopefully this can go away once we have the new incremental
>>           SSA updating code installed.  */
>>        SET_SSA_NAME_VAR_OR_IDENTIFIER (var, saved_ssa_name_var);
>> I don't see a big issue with this, sure, you could
>> tree saved_ssa_name_identifier = saved_ssa_name_var ? saved_ssa_name_var :
>> and use that instead in SET_SSA_NAME_VAR_OR_IDENTIFIER.
> Yeah I wasn't too concerned about this one, the outof-ssa case looked like
> more of a possible issue.  Maybe neither is, they just popped out as
> inconsistent uses.

Restoring SSA_NAME_VAR_OR_IDENTIFIER is only for debugging.  Yes,
it probably should save SSA_NAME_VAR_OR_IDENTIFIER instead of SSA_NAME_VAR.


> Andrew

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]