[Bug target/52898] SH Target: Inefficient DImode comparisons

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52898

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #11)
> Author: olegendo
> Date: Mon May  2 05:25:46 2016
> New Revision: 235698
> 
> URL: https://gcc.gnu.org/viewcvs?rev=235698&root=gcc&view=rev
> Log:
> gcc/
> 	PR target/52898
> 	* config/sh/sh.c (sh_option_override): Remove TARGET_CBRANCHDI4,
> 	TARGET_CMPEQDI_T.
> 	(prepare_cbranch_operands): Don't use scratch register.  Assume that
> 	function is used when pseudos can be created.
> 	(expand_cbranchdi4): Likewise.  Remove unused TARGET_CMPEQDI_T paths.
> 	* config/sh/sh.md (cbranchsi4): Allow only when pseudos can be created.
> 	(cbranchdi4, cbranchdi4_i): Simplify to single cbranchdi4
> 	define_expand.  Allow it only when pseudos can be created.
> 	* config/sh/sh.opt (mcbranchdi, mcmpeqdi): Delete.
> 
> 
> Modified:
>     trunk/gcc/ChangeLog
>     trunk/gcc/config/sh/sh.c
>     trunk/gcc/config/sh/sh.md
>     trunk/gcc/config/sh/sh.opt

This caused PR79462.