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The test hits stack overflow trying to instantiate recursive templates. It is observed with ASAN and not with a regular build because ASAN increases stack frame size. rdar://problem/45009892 Reviewers: george.karpenkov, lebedev.ri Reviewed By: george.karpenkov Subscribers: dexonsmith, rjmccall, cfe-commits Differential Revision: https://reviews.llvm.org/D54132 llvm-svn: 346200
32 lines
920 B
C++
32 lines
920 B
C++
// RUN: %clang_cc1 %s -emit-llvm-only -o -
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// https://bugs.llvm.org/show_bug.cgi?id=38356
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// We only check that we do not crash.
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// ASAN increases stack usage, so we are hitting stack overflow before reaching
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// recursive template instantiation limit.
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// XFAIL: darwin && asan
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template <typename a, a b(unsigned), int c, unsigned...>
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struct d : d<a, b, c - 1> {};
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template <typename a, a b(unsigned), unsigned... e>
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struct d<a, b, 0, e...> {
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a f[0];
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};
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struct g {
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static g h(unsigned);
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};
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struct i {
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void j() const;
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// Current maximum depth of recursive template instantiation is 1024,
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// thus, this \/ threshold value is used here. BasePathSize in CastExpr might
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// not fit it, so we are testing that we do fit it.
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// If -ftemplate-depth= is provided, larger values (4096 and up) cause crashes
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// elsewhere.
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d<g, g::h, (1U << 10U) - 2U> f;
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};
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void i::j() const {
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const void *k{f.f};
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(void)k;
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}
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