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From: Michael Meissner <meissner@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/meissner/heads/work161-dmf)] Use vector pair load/store for memcpy with -mcpu=future Date: Thu, 29 Feb 2024 18:25:55 +0000 (GMT) [thread overview] Message-ID: <20240229182555.3CC273858C32@sourceware.org> (raw) https://gcc.gnu.org/g:b6b2c54082d928eb1bed7cadb8c2959a848940d2 commit b6b2c54082d928eb1bed7cadb8c2959a848940d2 Author: Michael Meissner <meissner@linux.ibm.com> Date: Thu Feb 29 13:16:35 2024 -0500 Use vector pair load/store for memcpy with -mcpu=future In the development for the power10 processor, GCC did not enable using the load vector pair and store vector pair instructions when optimizing things like memory copy. This patch enables using those instructions if -mcpu=future is used. 2024-02-29 Michael Meissner <meissner@linux.ibm.com> gcc/ * config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Enable using load vector pair and store vector pair instructions for memory copy operations. (POWERPC_MASKS): Make the bit for enabling using load vector pair and store vector pair operations set and reset when the PowerPC processor is changed. 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 77170915615..8da1d560e49 100644 --- a/gcc/config/rs6000/rs6000-cpus.def +++ b/gcc/config/rs6000/rs6000-cpus.def @@ -92,6 +92,7 @@ /* Flags for a potential future processor that may or may not be made. */ #define ISA_FUTURE_MASKS_SERVER (ISA_POWER11_MASKS_SERVER \ + | OPTION_MASK_BLOCK_OPS_VECTOR_PAIR \ | OPTION_MASK_FUTURE) /* Flags that need to be turned off if -mno-vsx. */ @@ -123,6 +124,7 @@ /* 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 \
next reply other threads:[~2024-02-29 18:25 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-02-29 18:25 Michael Meissner [this message] -- strict thread matches above, loose matches on Subject: below -- 2024-03-05 18:40 Michael Meissner 2024-03-05 4:54 Michael Meissner 2024-03-04 23:41 Michael Meissner 2024-03-01 23:34 Michael Meissner 2024-03-01 21:46 Michael Meissner 2024-02-29 19:28 Michael Meissner 2024-02-29 18:20 Michael Meissner
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