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* [Bug c++/114525] New: Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference @ 2024-03-28 20:08 dragonroot at gmail dot com 2024-03-28 20:17 ` [Bug c++/114525] " pinskia at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: dragonroot at gmail dot com @ 2024-03-28 20:08 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114525 Bug ID: 114525 Summary: Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: dragonroot at gmail dot com Target Milestone: --- The following program incorrectly outputs 1 on every GCC I've tried (via godbolt.org), while every clang version there correctly outputs 2. ============== #include <stdio.h> struct Foo { int x; }; Foo & get( Foo & v ) { return v; } int main() { Foo v; v.x = 1; bool cond = true; ( cond ? get( v ) : get( v ) ).*( &Foo::x ) = 2; // Should output 2, but outputs 1 printf( "%d\n", v.x ); } ============== ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114525] Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference 2024-03-28 20:08 [Bug c++/114525] New: Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference dragonroot at gmail dot com @ 2024-03-28 20:17 ` pinskia at gcc dot gnu.org 2024-03-28 20:22 ` [Bug c++/114525] [11/12/13/14 Regression] " pinskia at gcc dot gnu.org 2024-04-02 8:35 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-03-28 20:17 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114525 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Last reconfirmed| |2024-03-28 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Confirmed. (void) (*((int *) &(cond ? *get ((struct Foo &) &v) : *get ((struct Foo &) &v)) + (sizetype) 0) = 2) >>>>>; Notice the * there. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114525] [11/12/13/14 Regression] Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference 2024-03-28 20:08 [Bug c++/114525] New: Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference dragonroot at gmail dot com 2024-03-28 20:17 ` [Bug c++/114525] " pinskia at gcc dot gnu.org @ 2024-03-28 20:22 ` pinskia at gcc dot gnu.org 2024-04-02 8:35 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-03-28 20:22 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114525 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to fail| |4.4.7 Target Milestone|--- |11.5 Summary|Incorrect code generated |[11/12/13/14 Regression] |when setting a value |Incorrect code generated |through a pointer-to-member |when setting a value |on a ternary returning an |through a pointer-to-member |object reference |on a ternary returning an | |object reference Known to work| |4.1.2 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- It actually worked in GCC 4.1.2. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114525] [11/12/13/14 Regression] Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference 2024-03-28 20:08 [Bug c++/114525] New: Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference dragonroot at gmail dot com 2024-03-28 20:17 ` [Bug c++/114525] " pinskia at gcc dot gnu.org 2024-03-28 20:22 ` [Bug c++/114525] [11/12/13/14 Regression] " pinskia at gcc dot gnu.org @ 2024-04-02 8:35 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2024-04-02 8:35 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114525 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P2 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-04-02 8:35 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2024-03-28 20:08 [Bug c++/114525] New: Incorrect code generated when setting a value through a pointer-to-member on a ternary returning an object reference dragonroot at gmail dot com 2024-03-28 20:17 ` [Bug c++/114525] " pinskia at gcc dot gnu.org 2024-03-28 20:22 ` [Bug c++/114525] [11/12/13/14 Regression] " pinskia at gcc dot gnu.org 2024-04-02 8:35 ` rguenth at gcc dot gnu.org
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