mizvekov wrote:
I figured a reproducer based on your hints:
```C++
template struct A {};
template class TT> auto f(TT a) { return a; }
A v1;
A v2;
using X = decltype(f(v1));
using Y = decltype(f(v2));
```
Fails with:
```
t.cc:9:20: error: no matching function for call to 'f'
9 | using Y
mizvekov wrote:
> Heads up: this commit has triggered some weird errors for a compile, but only
> when clang header modules are enabled.
> That seems to _probably_ indicate a bug in this commit (presumably related to
> AST serialization or deserialization?), but I don't have a test-case, and,
mizvekov wrote:
Thanks for the heads up, this does look like a problem. I am reverting it for
now.
https://github.com/llvm/llvm-project/pull/92855
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dcci wrote:
Example error while I reduce:
```
fbcode/third-party-buck/platform010/build/libgcc/include/c++/trunk/bits/stl_vector.h:404:21:
error: static assertion failed due to requirement
'is_same, std::allocator>,
quic::Interval>::value': std::vector must have the same
value_type as its
dcci wrote:
I am seeing something similar in vector (without modules). I'm reducing a test
case now.
https://github.com/llvm/llvm-project/pull/92855
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jyknight wrote:
Heads up: this commit has triggered some weird errors for a compile, but only
when clang header modules are enabled. A std::vector, that's built through a
large amount of template gunk that definitely involves template template
parameter matching, ends up failing vector's
https://github.com/mizvekov closed
https://github.com/llvm/llvm-project/pull/92855
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https://github.com/mizvekov edited
https://github.com/llvm/llvm-project/pull/92855
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https://github.com/mizvekov edited
https://github.com/llvm/llvm-project/pull/92855
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