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* [Bug c/105713] New: [gimplefe] need a way to specify TREE_ADDRESSABLE @ 2022-05-24 8:08 rguenth at gcc dot gnu.org 2022-05-24 8:08 ` [Bug c/105713] " rguenth at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-05-24 8:08 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105713 Bug ID: 105713 Summary: [gimplefe] need a way to specify TREE_ADDRESSABLE Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: rguenth at gcc dot gnu.org Target Milestone: --- For PR105711 a RTL expansion GIMPLE testcase would have been nice: typedef char v2qi __attribute__((vector_size(2))); void __GIMPLE (ssa,startwith("optimized")) foo (__complex__ char c) { __BB(2): __MEM <v2qi, 8> (&c) = _Literal (v2qi) { _Literal (char) 0, _Literal (char) 0 }; return; } but here 'c' ends up TREE_ADDRESSABLE while with the original setup it is not. That's because the C FE parsing marks 'c' addressable when parsing &c. The GIMPLE FE should fix this up on the optimistic side somehow and allow specifying TREE_ADDRESSABLE at the declaration. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/105713] [gimplefe] need a way to specify TREE_ADDRESSABLE 2022-05-24 8:08 [Bug c/105713] New: [gimplefe] need a way to specify TREE_ADDRESSABLE rguenth at gcc dot gnu.org @ 2022-05-24 8:08 ` rguenth at gcc dot gnu.org 2023-05-17 23:23 ` pinskia at gcc dot gnu.org 2023-05-18 5:59 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-05-24 8:08 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105713 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement Blocks| |101057 Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101057 [Bug 101057] [gimplefe] GIMPLE frontend issues ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/105713] [gimplefe] need a way to specify TREE_ADDRESSABLE 2022-05-24 8:08 [Bug c/105713] New: [gimplefe] need a way to specify TREE_ADDRESSABLE rguenth at gcc dot gnu.org 2022-05-24 8:08 ` [Bug c/105713] " rguenth at gcc dot gnu.org @ 2023-05-17 23:23 ` pinskia at gcc dot gnu.org 2023-05-18 5:59 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-05-17 23:23 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105713 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Last reconfirmed| |2023-05-17 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- . ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/105713] [gimplefe] need a way to specify TREE_ADDRESSABLE 2022-05-24 8:08 [Bug c/105713] New: [gimplefe] need a way to specify TREE_ADDRESSABLE rguenth at gcc dot gnu.org 2022-05-24 8:08 ` [Bug c/105713] " rguenth at gcc dot gnu.org 2023-05-17 23:23 ` pinskia at gcc dot gnu.org @ 2023-05-18 5:59 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2023-05-18 5:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105713 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Similarly DECL_NOT_GIMPLE_REG_P. "easiest" to do with attributes on the declaration I guess. GIMPLE FE specific attributes should be not recognized without -fgimple and should be prefixed g_addressable, g_not_gimple_reg_p? Optimistic clearing is going to be difficult, we'd need to have a lot of attributes that way. There's a narrow subset of cases we "ignore" & for addressability and __MEM parsing is separate so eventually we can introduce a flag into the C frontend to not set TREE_ADDRESSABLE when in some "context". ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-05-18 5:59 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-05-24 8:08 [Bug c/105713] New: [gimplefe] need a way to specify TREE_ADDRESSABLE rguenth at gcc dot gnu.org 2022-05-24 8:08 ` [Bug c/105713] " rguenth at gcc dot gnu.org 2023-05-17 23:23 ` pinskia at gcc dot gnu.org 2023-05-18 5:59 ` rguenth at gcc dot gnu.org
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