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6b737c4446
This patch fixes the crash when pointers to incomplete type are passed to atomic builtins such as `__atomic_load`. `ASTContext::getTypeInfoInChars` assumes that the argument type is a complete type, so I added a check to eliminate cases where incomplete types gets passed to this function Relevant PR: https://github.com/llvm/llvm-project/pull/91057 Fixes https://github.com/llvm/llvm-project/issues/96289
25 lines
719 B
C++
25 lines
719 B
C++
// RUN: %clang_cc1 %s -verify -fsyntax-only -triple=i686-linux-gnu -std=c++11
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// We crashed when we couldn't properly convert the first arg of __atomic_* to
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// an lvalue.
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void PR28623() {
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void helper(int); // expected-note{{target}}
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void helper(char); // expected-note{{target}}
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__atomic_store_n(helper, 0, 0); // expected-error{{reference to overloaded function could not be resolved}}
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}
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template<typename>
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struct X {
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char arr[1];
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};
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extern X<void>* p, *q;
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// They should be accepted.
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void f() {
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__atomic_exchange(p, p, q, __ATOMIC_RELAXED);
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__atomic_load(p, p, __ATOMIC_RELAXED);
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__atomic_store(p, p, __ATOMIC_RELAXED);
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__atomic_compare_exchange(p, p, q, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
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}
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