[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054 --- Comment #6 from CVS Commits --- The releases/gcc-10 branch has been updated by Jason Merrill : https://gcc.gnu.org/g:fe0f9ef823dda3205638a2f23d08eb7d0bc497b9 commit r10-9855-gfe0f9ef823dda3205638a2f23d08eb7d0bc497b9 Author: Jason Merrill Date: Tue Apr 13 12:33:39 2021 -0400 c++: generic lambda in template fn with DMI [PR100054] get_nsdmi instantiates default member initializers on demand. It tries to push into the context of the class before doing so, so access checking works properly, but since my patch for 90479 not for local classes. We should only be doing this when any template parameters have arguments. But in this case, we get here while regenerating a generic lambda, so processing_template_decl is true, even though the class and its DMI are non-dependent at this point. And so we crashed. So let's do more of the pushing into the context of the class even for local classes. gcc/cp/ChangeLog: PR c++/100054 PR c++/90479 * init.c (get_nsdmi): Do more context adjustment for local classes. gcc/testsuite/ChangeLog: PR c++/100054 * g++.dg/cpp1y/lambda-generic-local-class1.C: New test.
[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054 --- Comment #5 from Patrick Palka --- (In reply to Jason Merrill from comment #4) > Fixed. Apparently 90479 is the wrong PR number for the earlier change, I > wonder what the correct one was. Looks like it's PR90749
[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054 Jason Merrill changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED|RESOLVED --- Comment #4 from Jason Merrill --- Fixed. Apparently 90479 is the wrong PR number for the earlier change, I wonder what the correct one was.
[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054 --- Comment #3 from CVS Commits --- The master branch has been updated by Jason Merrill : https://gcc.gnu.org/g:6173f713a35d5450f0e2acfdaec695b42632aeed commit r11-8157-g6173f713a35d5450f0e2acfdaec695b42632aeed Author: Jason Merrill Date: Tue Apr 13 12:33:39 2021 -0400 c++: generic lambda in template fn with DMI [PR100054] get_nsdmi instantiates default member initializers on demand. It tries to push into the context of the class before doing so, so access checking works properly, but since my patch for 90479 not for local classes. We should only be doing this when any template parameters have arguments. But in this case, we get here while regenerating a generic lambda, so processing_template_decl is true, even though the class and its DMI are non-dependent at this point. And so we crashed. So let's do more of the pushing into the context of the class even for local classes. gcc/cp/ChangeLog: PR c++/100054 PR c++/90479 * init.c (get_nsdmi): Do more context adjustment for local classes. gcc/testsuite/ChangeLog: PR c++/100054 * g++.dg/cpp1y/lambda-generic-local-class1.C: New test.
[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054 Jason Merrill changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054 Richard Biener changed: What|Removed |Added Known to fail||11.0 Version|10.0|11.0 Known to work||10.3.0 Priority|P3 |P1
[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054
--- Comment #2 from Barry Revzin ---
In case it helps, here's a different example which on trunk ICEs in get_nsdmi,
but on gcc 10.2 and 10.3 ICEs on "unexpected expression '(F)()' of kind implicit_conv_expr" (and is accepted by 10.1)
struct F {
private:
int cx;
};
template
void find() {
struct H {
F o{};
};
using r = decltype([](auto) { return H{}; }(0));
}
void p() {
find();
}
[Bug c++/100054] [11 Regression] internal compiler error: in get_nsdmi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100054
Patrick Palka changed:
What|Removed |Added
Target Milestone|--- |11.0
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed||2021-04-12
Keywords||ice-on-valid-code
CC||jason at gcc dot gnu.org,
||ppalka at gcc dot gnu.org
Summary|internal compiler error: in |[11 Regression] internal
|get_nsdmi |compiler error: in
||get_nsdmi
--- Comment #1 from Patrick Palka ---
Confirmed, started with r11-17.
Slightly more reduced testcase:
template
void f() {
struct A { T m{}; };
[](auto){ return A{}; };
}
template void f();
