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Here, we capture nf, then the use of the proxy decays to a constant during semantic processing of +nf. Since we saw some decay from proxy to constant, we walk through the lambda body to see which proxies are still used, but we weren't walking into subtrees of DECL_EXPR at all, so we missed the use of &nf in the initializer of y, and removed the capture. But then at instantiation time we try to use nf, don't have a proxy anymore, and ICE. * lambda.c (mark_const_cap_r): Do walk subtrees of DECL_EXPR for non-proxy decls. From-SVN: r268471
19 lines
233 B
C
19 lines
233 B
C
// PR c++/88761
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// { dg-do compile { target c++14 } }
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template <class T>
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void f(T t) { t(1); }
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int main()
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{
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const unsigned long nf = 10'000'000;
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auto loop = [&](auto)
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{
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auto x = +nf;
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auto y = &nf;
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};
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f(loop);
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}
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