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* [Bug target/101019] New: GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 @ 2021-06-10 15:48 meissner at gcc dot gnu.org 2021-06-10 15:51 ` [Bug target/101019] " meissner at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: meissner at gcc dot gnu.org @ 2021-06-10 15:48 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101019 Bug ID: 101019 Summary: GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: meissner at gcc dot gnu.org Target Milestone: --- GCC should consider using a sequence of PLI, SLDI, and PADDI to load up 64-bit constants on power10. For example: long foo_2 (void) { return (1L << 53) | (1L << 35) | (1L << 30) | (1L << 2); } Generates: lis 3,0x20 ori 3,3,0x8 sldi 3,3,32 oris 3,3,0x4000 ori 3,3,0x4 when it could generate: pli 3,2097160 sldi 3,3,32 paddi 3,3,1073741828 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/101019] GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 2021-06-10 15:48 [Bug target/101019] New: GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 meissner at gcc dot gnu.org @ 2021-06-10 15:51 ` meissner at gcc dot gnu.org 2021-06-10 19:35 ` meissner at gcc dot gnu.org 2024-04-11 22:58 ` meissner at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: meissner at gcc dot gnu.org @ 2021-06-10 15:51 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101019 Michael Meissner <meissner at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Last reconfirmed| |2021-06-10 Severity|normal |enhancement CC| |bergner at gcc dot gnu.org, | |dje at gcc dot gnu.org, | |meissner at gcc dot gnu.org, | |segher at gcc dot gnu.org, | |willschm at gcc dot gnu.org, | |wschmidt at gcc dot gnu.org ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/101019] GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 2021-06-10 15:48 [Bug target/101019] New: GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 meissner at gcc dot gnu.org 2021-06-10 15:51 ` [Bug target/101019] " meissner at gcc dot gnu.org @ 2021-06-10 19:35 ` meissner at gcc dot gnu.org 2024-04-11 22:58 ` meissner at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: meissner at gcc dot gnu.org @ 2021-06-10 19:35 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101019 Michael Meissner <meissner at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |meissner at gcc dot gnu.org --- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> --- I'm working on patches. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/101019] GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 2021-06-10 15:48 [Bug target/101019] New: GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 meissner at gcc dot gnu.org 2021-06-10 15:51 ` [Bug target/101019] " meissner at gcc dot gnu.org 2021-06-10 19:35 ` meissner at gcc dot gnu.org @ 2024-04-11 22:58 ` meissner at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: meissner at gcc dot gnu.org @ 2024-04-11 22:58 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101019 Michael Meissner <meissner at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|ASSIGNED |RESOLVED --- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> --- The changes for this were checked into the master branch on December 12th, 2023 by Jiufu Guo <guojiufu@linux.ibm.com>. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-04-11 22:58 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-06-10 15:48 [Bug target/101019] New: GCC should consider using PLI/SLDI/PADDI to load up 64-bit constants on power10 meissner at gcc dot gnu.org 2021-06-10 15:51 ` [Bug target/101019] " meissner at gcc dot gnu.org 2021-06-10 19:35 ` meissner at gcc dot gnu.org 2024-04-11 22:58 ` meissner at gcc dot gnu.org
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