[PATCH v4 1/4] rs6000: Enable REE pass by default

[PATCH v4 1/4] rs6000: Enable REE pass by default

[Ajit Agarwal]

Hello All:

This patch enable REE pass by default at O2 and above.
Bootstrapped and regtested on powerpc64-linux-gnu.

Thanks & Regards
Ajit

	rs6000: Enable REE pass by default

	Add ree pass as a default pass for rs6000 target for
	O2 and above.

	2023-04-21  Ajit Kumar Agarwal  <aagarwa1@linux.ibm.com>

gcc/ChangeLog:

	* common/config/rs6000/rs6000-common.cc: Add REE pass as a
	default rs6000 target pass for O2 and above.
---
 gcc/common/config/rs6000/rs6000-common.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/common/config/rs6000/rs6000-common.cc b/gcc/common/config/rs6000/rs6000-common.cc
index 2140c442ba9..968db215028 100644
--- a/gcc/common/config/rs6000/rs6000-common.cc
+++ b/gcc/common/config/rs6000/rs6000-common.cc
@@ -34,6 +34,8 @@ static const struct default_options rs6000_option_optimization_table[] =
     { OPT_LEVELS_ALL, OPT_fsplit_wide_types_early, NULL, 1 },
     /* Enable -fsched-pressure for first pass instruction scheduling.  */
     { OPT_LEVELS_1_PLUS, OPT_fsched_pressure, NULL, 1 },
+    /* Enable -free for zero extension and sign extension elimination.*/
+    { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 },
     /* Enable -munroll-only-small-loops with -funroll-loops to unroll small
        loops at -O2 and above by default.  */
     { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_funroll_loops, NULL, 1 },
-- 
2.31.1

Re: [PATCH v4 1/4] rs6000: Enable REE pass by default

[Segher Boessenkool]

Hi!

Please look at
<https://inbox.sourceware.org/gcc-patches/20230419200011.GG19790@gate.crashing.org/>
and reply to that message, with answers to the questions?  And make sure
you are listed in MAINTAINERS before anything else.  Thanks!


Segher

Re: [PATCH v4 1/4] rs6000: Enable REE pass by default

[Ajit Agarwal]

Hello Segher:

On 22/04/23 6:56 pm, Segher Boessenkool wrote:
> Hi!
> 
> Please look at
> <https://inbox.sourceware.org/gcc-patches/20230419200011.GG19790@gate.crashing.org/>
> and reply to that message, with answers to the questions?  And make sure
> you are listed in MAINTAINERS before anything else.  Thanks!
> 

Done.

Thanks & Regards
Ajit
> 
> Segher