llvm-project/clang/test/SemaTemplate/instantiation-depth-default.cpp
Duo Wang b2477765db
[clang][test] Fix instantiation-depth-default.cpp under ubsan config on Windows (#91021)
Clang test `instantiation-depth-default.cpp` fails on Windows when built
with `ubsan` due to extra warnings printed by the compiler:
```console
File instantiation-depth-default.cpp Line 11: stack nearly exhausted; compilation time may suffer, and crashes due to stack overflow are likely
```

Originally in https://github.com/llvm/llvm-project/pull/75254 this test
was enabled for `asan` as well but later started to cause failures in
Linux ASAN buildbots. I have excluded `asan` from this change.
2024-05-07 16:51:12 +01:00

21 lines
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C++

// RUN: %clang_cc1 -fsyntax-only -verify -ftemplate-backtrace-limit=2 %if {{ubsan}} %{ -Wno-stack-exhausted %} %s
//
// FIXME: Disable this test when Clang was built with ASan, because ASan
// increases our per-frame stack usage enough that this test no longer fits
// within our normal stack space allocation.
// UNSUPPORTED: asan
//
// The default stack size on NetBSD is too small for this test.
// UNSUPPORTED: system-netbsd
template<int N, typename T> struct X : X<N+1, T*> {};
// expected-error-re@11 {{recursive template instantiation exceeded maximum depth of 1024{{$}}}}
// expected-note@11 {{instantiation of template class}}
// expected-note@11 {{skipping 1023 contexts in backtrace}}
// expected-note@11 {{use -ftemplate-depth=N to increase recursive template instantiation depth}}
X<0, int> x; // expected-note {{in instantiation of}}
// FIXME: It crashes. Investigating.
// UNSUPPORTED: target={{.*-windows-gnu}}