diff mbox series

[2/6] PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.

Message ID ZTBxkkoelVIxvnEy@cowardly-lion.the-meissners.org
State Unresolved
Headers
Series PowerPC Future patches |

Checks

Context Check Description
snail/gcc-patch-check warning Git am fail log

Commit Message

Michael Meissner Oct. 19, 2023, midnight UTC 
  This patch re-enables generating load and store vector pair instructions when
doing certain memory copy operations when -mcpu=future is used.

During power10 development, it was determined that using store vector pair
instructions were problematical in a few cases, so we disabled generating load
and store vector pair instructions for memory options by default.  This patch
re-enables generating these instructions if -mcpu=future is used.

The patches have been tested on both little and big endian systems.  Can I check
it into the master branch?

2023-10-18   Michael Meissner  <meissner@linux.ibm.com>

gcc/

	* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS): Add
	-mblock-ops-vector-pair.
	(POWERPC_MASKS): Likewise.
---
 gcc/config/rs6000/rs6000-cpus.def | 2 ++
 1 file changed, 2 insertions(+)

Comments

Michael Meissner Oct. 25, 2023, 8:16 p.m. UTC | #1 
Ping patch.

| Date: Wed, 18 Oct 2023 20:00:18 -0400
| From: Michael Meissner <meissner@linux.ibm.com>
| Subject: [PATCH 2/6] PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
| Message-ID: <ZTBxkkoelVIxvnEy@cowardly-lion.the-meissners.org>

https://gcc.gnu.org/pipermail/gcc-patches/2023-October/633512.html
Michael Meissner Nov. 3, 2023, 7:50 a.m. UTC | #2 
Ping #2

| Date: Wed, 18 Oct 2023 20:00:18 -0400
| From: Michael Meissner <meissner@linux.ibm.com>
| Subject: [PATCH 2/6] PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
| Message-ID: <ZTBxkkoelVIxvnEy@cowardly-lion.the-meissners.org>

https://gcc.gnu.org/pipermail/gcc-patches/2023-October/633512.html
diff mbox series

Patch

diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def
index a6d9d7bf9a8..849af6b3ac8 100644
--- a/gcc/config/rs6000/rs6000-cpus.def
+++ b/gcc/config/rs6000/rs6000-cpus.def
@@ -90,6 +90,7 @@ 
 
 /* Flags for a potential future processor that may or may not be delivered.  */
 #define ISA_FUTURE_MASKS	(ISA_3_1_MASKS_SERVER			\
+				 | OPTION_MASK_BLOCK_OPS_VECTOR_PAIR	\
 				 | OPTION_MASK_FUTURE)
 
 /* Flags that need to be turned off if -mno-power9-vector.  */
@@ -127,6 +128,7 @@ 
 
 /* Mask of all options to set the default isa flags based on -mcpu=<xxx>.  */
 #define POWERPC_MASKS		(OPTION_MASK_ALTIVEC			\
+				 | OPTION_MASK_BLOCK_OPS_VECTOR_PAIR	\
 				 | OPTION_MASK_CMPB			\
 				 | OPTION_MASK_CRYPTO			\
 				 | OPTION_MASK_DFP			\