[Bug c/19315] document undocumented extension that allows code where variable is not emitted in the asm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 Eric Gallager changed: What|Removed |Added Keywords||documentation CC||egallager at gcc dot gnu.org Summary|variable is not emitted in |document undocumented |the asm |extension that allows code ||where variable is not ||emitted in the asm --- Comment #5 from Eric Gallager --- (In reply to Andrew Pinski from comment #4) > This looks like one of those undocumented extensions. I guess the solution then would be to document it; adding "documentation" keyword
[Bug c/19315] document undocumented extension that allows code where variable is not emitted in the asm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 Andrew Pinski changed: What|Removed |Added CC||iains at gcc dot gnu.org --- Comment #6 from Andrew Pinski --- *** Bug 86670 has been marked as a duplicate of this bug. ***
[Bug c/19315] document undocumented extension that allows code where variable is not emitted in the asm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 --- Comment #7 from Iain Sandoe --- IMHO (as you say in c#3) this is "surprising behaviour" * if there's any case you'd want it - then maybe you should have to ask for it. (so if it's intentional it should be behind some flag?) * it ought to warn by default (not require '-pedantic'). * as Richi commented in 86670, it means grokdeclarator has conflicting storage classes which doesn't seem like a useful idea for maintenance. I guess the point is "what do we want the behaviour to be?". Documenting it doesn't seem to really make it less surprising (if it's an 'extension' then one ought to be able to identify a sensible use-case and put it in the test-suite).
[Bug c/19315] document undocumented extension that allows code where variable is not emitted in the asm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 --- Comment #8 from rguenther at suse dot de --- On July 25, 2018 5:50:40 PM GMT+02:00, "egallager at gcc dot gnu.org" wrote: >https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 > >Eric Gallager changed: > > What|Removed |Added > >CC||rguenth at gcc dot gnu.org, >||schwab at gcc dot gnu.org Just remove the extension and see where in the testsuite it fails. If it doesn't, simply remove it.
[Bug c/19315] document undocumented extension that allows code where variable is not emitted in the asm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 Iain Sandoe changed: What|Removed |Added CC||dominiq at lps dot ens.fr --- Comment #9 from Iain Sandoe --- *** Bug 72864 has been marked as a duplicate of this bug. ***
[Bug c/19315] document undocumented extension that allows code where variable is not emitted in the asm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 --- Comment #10 from Iain Sandoe --- Author: iains Date: Wed Aug 15 11:45:44 2018 New Revision: 263556 URL: https://gcc.gnu.org/viewcvs?rev=263556&root=gcc&view=rev Log: Don't make unsized objects into extern. 2018-08-15 Iain Sandoe gcc/c: PR c/19315 * c-decl.c (finish_decl): Don't add the 'extern' storage class to objects of unknown size. gcc/testsuite: PR c/19315 gcc.dg/graphite/pr82451.c: Make array 'a' an extern. gcc.dg/redecl-10.c: Expect warnings for the static vars with unknown size. Modified: trunk/gcc/c/ChangeLog trunk/gcc/c/c-decl.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/graphite/pr82451.c trunk/gcc/testsuite/gcc.dg/redecl-10.c
[Bug c/19315] document undocumented extension that allows code where variable is not emitted in the asm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19315 Iain Sandoe changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #11 from Iain Sandoe --- fixed on trunk
