https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90301
Bug ID: 90301
Summary: RangeV3 usage, ICE internal compiler error: canonical
types differ for identical types
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: cuzdav at gmail dot com
Target Milestone: ---
Created attachment 46270
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46270&action=edit
full output from compiler (since it's long)
On Godbolt, version 8.3 and releases before it, this compiles. It compiles in
Clang from trunk back to version 5.
On the current g++ TRUNK version, it fails in -std=c++17 mode and -std=c++2a
mode.
(But it SUCCEEDS in TRUNK -std=c++14 mode)
I didn't dig into rangeV3 implementation, so it may resemble some other
existing reports:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52830
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89766
Here's the complete, minimal, reproducible extraction of the code triggering
the bug
//---------------------------------------------
#include <range/v3/numeric.hpp>
#include <range/v3/view/filter.hpp>
int g() {
int v[]{1, 2, 3};
return ranges::v3::accumulate(
v | ranges::v3::view::filter([](int){return true;}),
0);
}
//---------------------------------------------
side-by-side on Godbolt:
https://godbolt.org/z/q9z4mI
OUTPUT:
/opt/compiler-explorer/libs/rangesv3/trunk/include/range/v3/utility/compressed_pair.hpp:51:27:
internal compiler error: canonical types differ for identical types
'std::integral_constant<bool, and_v<std::is_constructible<Ts,
Args>::type::value ...> >' and 'std::integral_constant<bool,
and_v<std::is_constructible<Ts, Args>::type::value ...> >'
51 | constexpr compressed_tuple_(Args &&... args)
| ^~~~~~~~~~~~~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
(Full output is attached)
