On 06/11/14 03:35, Zhenqiang Chen wrote:
Thanks for the comments. df_live seams redundant.
With flag_ira_loop_pressure, the pass will call df_analyze () at the
beginning, which can make sure all the DF info are correct.
Can we guarantee all DF_... correct without df_analyze ()?
They should be
On 10 June 2014 19:01, Steven Bosscher wrote:
> On Tue, Jun 10, 2014 at 11:55 AM, Zhenqiang Chen wrote:
>>
>> * loop-invariant.c (find_invariant_insn): Skip invariants, which
>> can not make a valid insn during replacement in move_invariant_reg.
>>
>> --- a/gcc/loop-invariant.c
>>
On Tue, Jun 10, 2014 at 11:55 AM, Zhenqiang Chen wrote:
>
> * loop-invariant.c (find_invariant_insn): Skip invariants, which
> can not make a valid insn during replacement in move_invariant_reg.
>
> --- a/gcc/loop-invariant.c
> +++ b/gcc/loop-invariant.c
> @@ -881,6 +881,35 @@ find_
