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* [gcc(refs/users/meissner/heads/dmf009)] PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
@ 2023-02-27 22:57 Michael Meissner
0 siblings, 0 replies; 3+ messages in thread
From: Michael Meissner @ 2023-02-27 22:57 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:56c5f56f5e770cc7ee9d0a7ff23293a8814dc8f4
commit 56c5f56f5e770cc7ee9d0a7ff23293a8814dc8f4
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Fri Feb 17 15:03:43 2023 -0500
PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
This patch enables generating load and store vector pair instructions when
doing certain memory copy operations when -mcpu=future is used. In doing tests
on power10, it was determined that using these instructions were problematical
in a few cases, so we disabled generating them by default. This patch
re-enabled generating these instructions if -mcpu=future is used.
The patches have been tested on the following platforms. I added the patches
for PR target/107299 that I submitted on November 2nd before doing the builds so
that GCC would build on systems using IEEE 128-bit long double.
* https://gcc.gnu.org/pipermail/gcc-patches/2022-November/604834.html
There were no regressions with doing bootstrap builds and running the regression
tests:
1) Power10 LE using --with-cpu=power10 --with-long-double-format=ieee;
2) Power10 LE using --with-cpu=power10 --with-long-double-format=ibm;
3) Power9 LE using --with-cpu=power9 --with-long-double-format=ibm; and
4) Power8 BE using --with-cpu=power8 (both 32-bit & 64-bit tested).
Note, I will be on vacation from Tuesday February 7th through Tuesday February
14th.
Can I check this patch into the GCC 13 master branch?
2023-02-17 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS): Add
-mblock-ops-vector-pair.
(POWERPC_MASKS): Likewise.
Diff:
---
gcc/config/rs6000/rs6000-cpus.def | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def
index deb4ea1c980..b9a4d9ad76e 100644
--- a/gcc/config/rs6000/rs6000-cpus.def
+++ b/gcc/config/rs6000/rs6000-cpus.def
@@ -88,6 +88,7 @@
/* 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. */
@@ -125,6 +126,7 @@
/* 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 \
^ permalink raw reply [flat|nested] 3+ messages in thread
* [gcc(refs/users/meissner/heads/dmf009)] PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
@ 2023-02-23 21:41 Michael Meissner
0 siblings, 0 replies; 3+ messages in thread
From: Michael Meissner @ 2023-02-23 21:41 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:6e1be890d1b3299449ef8da4db421d06850b26ca
commit 6e1be890d1b3299449ef8da4db421d06850b26ca
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Fri Feb 17 15:03:43 2023 -0500
PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
This patch enables generating load and store vector pair instructions when
doing certain memory copy operations when -mcpu=future is used. In doing tests
on power10, it was determined that using these instructions were problematical
in a few cases, so we disabled generating them by default. This patch
re-enabled generating these instructions if -mcpu=future is used.
The patches have been tested on the following platforms. I added the patches
for PR target/107299 that I submitted on November 2nd before doing the builds so
that GCC would build on systems using IEEE 128-bit long double.
* https://gcc.gnu.org/pipermail/gcc-patches/2022-November/604834.html
There were no regressions with doing bootstrap builds and running the regression
tests:
1) Power10 LE using --with-cpu=power10 --with-long-double-format=ieee;
2) Power10 LE using --with-cpu=power10 --with-long-double-format=ibm;
3) Power9 LE using --with-cpu=power9 --with-long-double-format=ibm; and
4) Power8 BE using --with-cpu=power8 (both 32-bit & 64-bit tested).
Note, I will be on vacation from Tuesday February 7th through Tuesday February
14th.
Can I check this patch into the GCC 13 master branch?
2023-02-17 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS): Add
-mblock-ops-vector-pair.
(POWERPC_MASKS): Likewise.
Diff:
---
gcc/config/rs6000/rs6000-cpus.def | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def
index deb4ea1c980..b9a4d9ad76e 100644
--- a/gcc/config/rs6000/rs6000-cpus.def
+++ b/gcc/config/rs6000/rs6000-cpus.def
@@ -88,6 +88,7 @@
/* 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. */
@@ -125,6 +126,7 @@
/* 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 \
^ permalink raw reply [flat|nested] 3+ messages in thread
* [gcc(refs/users/meissner/heads/dmf009)] PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
@ 2023-02-17 20:04 Michael Meissner
0 siblings, 0 replies; 3+ messages in thread
From: Michael Meissner @ 2023-02-17 20:04 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:538ed39ef97c96ec103903f2dfa9ab2804cf9957
commit 538ed39ef97c96ec103903f2dfa9ab2804cf9957
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Fri Feb 17 15:03:43 2023 -0500
PowerPC: Make -mcpu=future enable -mblock-ops-vector-pair.
This patch enables generating load and store vector pair instructions when
doing certain memory copy operations when -mcpu=future is used. In doing tests
on power10, it was determined that using these instructions were problematical
in a few cases, so we disabled generating them by default. This patch
re-enabled generating these instructions if -mcpu=future is used.
The patches have been tested on the following platforms. I added the patches
for PR target/107299 that I submitted on November 2nd before doing the builds so
that GCC would build on systems using IEEE 128-bit long double.
* https://gcc.gnu.org/pipermail/gcc-patches/2022-November/604834.html
There were no regressions with doing bootstrap builds and running the regression
tests:
1) Power10 LE using --with-cpu=power10 --with-long-double-format=ieee;
2) Power10 LE using --with-cpu=power10 --with-long-double-format=ibm;
3) Power9 LE using --with-cpu=power9 --with-long-double-format=ibm; and
4) Power8 BE using --with-cpu=power8 (both 32-bit & 64-bit tested).
Note, I will be on vacation from Tuesday February 7th through Tuesday February
14th.
Can I check this patch into the GCC 13 master branch?
2023-02-17 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS): Add
-mblock-ops-vector-pair.
(POWERPC_MASKS): Likewise.
Diff:
---
gcc/config/rs6000/rs6000-cpus.def | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def
index deb4ea1c980..b9a4d9ad76e 100644
--- a/gcc/config/rs6000/rs6000-cpus.def
+++ b/gcc/config/rs6000/rs6000-cpus.def
@@ -88,6 +88,7 @@
/* 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. */
@@ -125,6 +126,7 @@
/* 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 \
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-02-27 22:57 UTC | newest]
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2023-02-23 21:41 Michael Meissner
2023-02-17 20:04 Michael Meissner
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