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Re: [patch] Remove CLEANUP_PRE_LOOP


On Wed, 2006-03-01 at 17:08 +0100, Zdenek Dvorak wrote:
> Hello,
> 
> with loop.c gone, cfg cleanup does not need to care about preserving
> structure of loop notes.  The actual use of CLEANUP_PRE_LOOP flag in
> cfg cleanup was removed with -floop-optimize, this patch removes the
> CLEANUP_PRE_LOOP flag itself.
> 
> Bootstrapped & regtested on ia64.
> 
> Zdenek
> 
> 	* cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
> 	cleanup.
> 	* gcse.c (rest_of_handle_gcse): Ditto.
> 	* except.c (gate_handle_eh): Ditto.
> 	* cfgcleanup.c (rest_of_handle_jump2): Ditto.
> 	* basic-block.h (CLEANUP_PRE_LOOP): Remove.
Nice.  Note that we also run a CSE pass after loop; that CSE pass may
be redundant with the removal of the old loop optimizer.

jeff



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