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From: "tnfchris at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/103094] [12 Regression] AAPCS for new partial vector mode types (e.g. V2x8QI) are incorrect. Date: Mon, 13 Dec 2021 09:12:09 +0000 [thread overview] Message-ID: <bug-103094-4-TJXMz3iXU8@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-103094-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103094 Tamar Christina <tnfchris at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jonathan.wright at arm dot com Priority|P3 |P1 Summary|[12 Regression] Incorrect |[12 Regression] AAPCS for |codegen from uint8x8x2_t |new partial vector mode |function arguments |types (e.g. V2x8QI) are | |incorrect. Assignee|unassigned at gcc dot gnu.org |tnfchris at gcc dot gnu.org --- Comment #5 from Tamar Christina <tnfchris at gcc dot gnu.org> --- The frame layout and argument layout code for the new structs are incorrect, it leads to the compiler thinking that every pair of values only use a single register. i.e. V2x8QI is 16 bytes long, so the compiler thinks the values are packed in a single register. This causes any code that returns or passes these new types as function arguments to be incorrect. Mine.
next prev parent reply other threads:[~2021-12-13 9:12 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-05 9:50 [Bug target/103094] New: [12 Regression] Incorrect codegen from AArch64 intrinsics tnfchris at gcc dot gnu.org 2021-11-05 9:50 ` [Bug target/103094] " tnfchris at gcc dot gnu.org 2021-11-05 12:18 ` tnfchris at gcc dot gnu.org 2021-11-05 12:22 ` pinskia at gcc dot gnu.org 2021-11-05 12:29 ` tnfchris at gcc dot gnu.org 2021-11-06 5:50 ` pinskia at gcc dot gnu.org 2021-11-06 22:33 ` [Bug target/103094] [12 Regression] Incorrect codegen from uint8x8x2_t function arguments pinskia at gcc dot gnu.org 2021-12-13 9:12 ` tnfchris at gcc dot gnu.org [this message] 2021-12-15 12:19 ` [Bug target/103094] [12 Regression] AAPCS for new partial vector mode types (e.g. V2x8QI) are incorrect cvs-commit at gcc dot gnu.org 2021-12-15 12:24 ` rsandifo at gcc dot gnu.org
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