d29f7f1a7b
Fix ternary operator in for loop argument, it was by mistake not set as CanBeForRangeDecl and led to incorrect codegen. It fixes https://bugs.llvm.org/show_bug.cgi?id=50038. I don't have commit rights. Danila Kutenin. kutdanila@yandex.ru Reviewed By: rsmith Differential Revision: https://reviews.llvm.org/D102502
45 lines
1.8 KiB
C++
45 lines
1.8 KiB
C++
// RUN: %clang_cc1 -std=c++2a -verify %s
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template<int N> struct A {};
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using F = bool(*)(int);
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extern F *p;
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extern int m;
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struct Convertible { template<typename T> operator T(); };
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void f() {
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int arr1[3];
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for (int n = 5; int x : arr1) {}
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int A<0>::*arr2[3];
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for (int n = 5; int A<true ? 0 : 1>::*x : arr2) {}
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for (int i = 0; int x = i < 2 ? 1 : 0; i++) {}
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F (*arr3[3])(int);
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for (int n = 5; F (*p)(int n) : arr3) {}
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for (int n = 5; F (*p)(int (n)) : arr3) {}
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// Here, we have a declaration rather than an expression.
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for (int n = 5; F (*p)(int (n)); ++n) {}
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// We detect whether we have a for-range-declaration before parsing so that
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// we can give different diagnostics for for-range-declarations versus
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// conditions (even though the rules are currently identical).
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Convertible arr4[3];
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for (int n = 0; struct { operator bool(); } x = {}; ++n) {} // expected-error {{cannot be defined in a condition}}
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for (int n = 0; struct { operator bool(); } x : arr4) {} // expected-error {{may not be defined in a for range declaration}}
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for (int n = 0; static int m = 0; ++n) {} // expected-error {{type name does not allow storage class}}
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for (int n = 0; static int m : arr1) {} // expected-error {{loop variable 'm' may not be declared 'static'}}
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// The init-statement and range are not break / continue scopes. (But the body is.)
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for (int n = ({ break; 0; }); int m : arr1) {} // expected-error {{not in loop}}
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for (int n = ({ continue; 0; }); int m : arr1) {} // expected-error {{not in loop}}
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for (int arr[3]; int n : *({ break; &arr; })) {} // expected-error {{not in loop}}
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for (int arr[3]; int n : *({ continue; &arr; })) {} // expected-error {{not in loop}}
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for (int n = 0; int m : arr1) { break; }
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for (int n = 0; int m : arr1) { continue; }
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}
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