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2ee2b6aa7a
Unlike other *Loc member in FunctionScopeInfo, we didn't clear
FirstVLALoc in 'FunctionScopeInfo::Clear()'. Then it will be
problematic for the following case:
```
void bar(int n) {
int array[n];
return;
}
coroutine foo(int n) {
co_return;
}
```
When we parse `foo`, the FirstVLALoc is still valid, then the compiler
will report `vla in coroutine` error in bar, which is super odd. After
this patch, we can fix this.
36 lines
831 B
C++
36 lines
831 B
C++
// RUN: %clang_cc1 %s -std=c++20 -fsyntax-only -Wno-vla-cxx-extension -verify
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#include "Inputs/std-coroutine.h"
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struct promise;
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struct coroutine : std::coroutine_handle<promise> {
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using promise_type = ::promise;
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};
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struct promise
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{
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coroutine get_return_object();
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std::suspend_always initial_suspend() noexcept;
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std::suspend_always final_suspend() noexcept;
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void return_void();
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void unhandled_exception();
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};
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// Test that we won't report the error incorrectly.
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void bar(int n) {
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int array[n];
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return;
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}
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coroutine foo(int n) {
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int array[n]; // expected-error {{variable length arrays in a coroutine are not supported}}
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co_return;
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}
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void lambda() {
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[](int n) -> coroutine {
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int array[n]; // expected-error {{variable length arrays in a coroutine are not supported}}
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co_return;
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}(10);
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}
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