[PATCH, ARM][1/4] New RTL patterns for LDRD/STRD in Thumb mode

[Richard Earnshaw]

On 19/10/12 16:20, Greta Yorsh wrote:

> Removed the condition "!optimize_function_for_size_p (cfun))".
>
> The condition "current_tune->prefer_ldrd_strd" is needed because the
> patterns
> for LDRD/STRD appear before the patterns for LDM/STM that can match the same
> RTL
> (two register in the list). Condition "reload_completed" does not help with
> it
> because peephole optimizations in ldmstm.md may (after reload) create new
> RTL insn
> that match this pattern.
>

The point of the reload_completed is that these patterns have the 
potential to cause some problems if they somehow matched during earlier 
passes and the address base was an eliminable register.