https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85200
Benjamin Buch <benni.buch at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #5 from Benjamin Buch <benni.buch at gmail dot com> ---
First test case still fails with a wrong error message and an ICE:
struct A{
constexpr operator int(){ return 0; }
};
template < typename >
void f(){
[](auto known){
if constexpr(constexpr int k = known);
}(A{});
}
int main(){
f<int>();
}
$ g++ -std=c++17 main.cpp
main.cpp: In lambda function:
main.cpp:7:18: error: Local declaration from a different function
[](auto known){
^
k
main.cpp:8:36: note: in statement
if constexpr(constexpr int k = known);
^
k = 0;
during GIMPLE pass: cfg
main.cpp:7:18: internal compiler error: verify_gimple failed
[](auto known){
^
0xed1883 verify_gimple_in_cfg(function*, bool)
../../gcc/gcc/tree-cfg.c:5585
0xdb891f execute_function_todo
../../gcc/gcc/passes.c:1994
0xdb986e execute_todo
../../gcc/gcc/passes.c:2048
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ g++ --version
g++ (GCC) 8.0.1 20180405 (experimental)
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
GCC 7 and clang 8 are accepting the code.
I'm not sure what the error message means, but I'm quite sure it isn't correct
here.
