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81 lines
3.2 KiB
81 lines
3.2 KiB
4 months ago
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// RUN: %clang_cc1 -fsyntax-only -verify %s -triple x86_64-apple-darwin9
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// rdar://6726818
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void f1() {
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const __builtin_va_list args2;
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(void)__builtin_va_arg(args2, int); // expected-error {{first argument to 'va_arg' is of type 'const __builtin_va_list' and not 'va_list'}}
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}
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void f2(int a, ...) {
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a); // expected-error {{'__builtin_ms_va_start' used in System V ABI function}}
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}
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void __attribute__((ms_abi)) g1(int a) {
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a, a); // expected-error {{too many arguments to function}}
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__builtin_ms_va_start(ap, a); // expected-error {{'va_start' used in function with fixed args}}
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}
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void __attribute__((ms_abi)) g2(int a, int b, ...) {
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, 10); // expected-warning {{second argument to 'va_start' is not the last named parameter}}
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__builtin_ms_va_start(ap, a); // expected-warning {{second argument to 'va_start' is not the last named parameter}}
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__builtin_ms_va_start(ap, b);
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}
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void __attribute__((ms_abi)) g3(float a, ...) { // expected-note 2{{parameter of type 'float' is declared here}}
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a); // expected-warning {{passing an object that undergoes default argument promotion to 'va_start' has undefined behavior}}
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__builtin_ms_va_start(ap, (a)); // expected-warning {{passing an object that undergoes default argument promotion to 'va_start' has undefined behavior}}
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}
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void __attribute__((ms_abi)) g5() {
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, ap); // expected-error {{'va_start' used in function with fixed args}}
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}
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void __attribute__((ms_abi)) g6(int a, ...) {
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap); // expected-error {{too few arguments to function}}
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}
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void __attribute__((ms_abi))
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bar(__builtin_ms_va_list authors, ...) {
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__builtin_ms_va_start(authors, authors);
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(void)__builtin_va_arg(authors, int);
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__builtin_ms_va_end(authors);
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}
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void __attribute__((ms_abi)) g7(int a, ...) {
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a);
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// FIXME: This error message is sub-par.
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__builtin_va_arg(ap, int) = 1; // expected-error {{expression is not assignable}}
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int *x = &__builtin_va_arg(ap, int); // expected-error {{cannot take the address of an rvalue}}
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__builtin_ms_va_end(ap);
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}
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void __attribute__((ms_abi)) g8(int a, ...) {
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__builtin_ms_va_list ap;
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__builtin_ms_va_start(ap, a);
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(void)__builtin_va_arg(ap, void); // expected-error {{second argument to 'va_arg' is of incomplete type 'void'}}
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__builtin_ms_va_end(ap);
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}
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enum E { x = -1, y = 2, z = 10000 };
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void __attribute__((ms_abi)) g9(__builtin_ms_va_list args) {
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(void)__builtin_va_arg(args, float); // expected-warning {{second argument to 'va_arg' is of promotable type 'float'}}
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(void)__builtin_va_arg(args, enum E); // no-warning
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(void)__builtin_va_arg(args, short); // expected-warning {{second argument to 'va_arg' is of promotable type 'short'}}
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(void)__builtin_va_arg(args, char); // expected-warning {{second argument to 'va_arg' is of promotable type 'char'}}
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}
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void __attribute__((ms_abi)) g10(int a, ...) {
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__builtin_va_list ap;
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__builtin_va_start(ap, a); // expected-error {{'va_start' used in Win64 ABI function}}
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}
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