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// RUN: %clang_cc1 -triple x86_64-windows-msvc -fms-extensions -fsyntax-only -fexceptions -fcxx-exceptions -verify %s
// Basic usage should work.
int safe_div(int n, int d) {
int r;
__try {
r = n / d;
} __except(_exception_code() == 0xC0000094) {
r = 0;
}
return r;
}
void might_crash();
// Diagnose obvious builtin mis-usage.
void bad_builtin_scope() {
__try {
might_crash();
} __except(1) {
}
_exception_code(); // expected-error {{'_exception_code' only allowed in __except block or filter expression}}
_exception_info(); // expected-error {{'_exception_info' only allowed in __except filter expression}}
}
// Diagnose obvious builtin misusage in a template.
template <void FN()>
void bad_builtin_scope_template() {
__try {
FN();
} __except(1) {
}
_exception_code(); // expected-error {{'_exception_code' only allowed in __except block or filter expression}}
_exception_info(); // expected-error {{'_exception_info' only allowed in __except filter expression}}
}
void instantiate_bad_scope_tmpl() {
bad_builtin_scope_template<might_crash>();
}
// FIXME: Diagnose this case. For now we produce undef in codegen.
template <typename T, T FN()>
T func_template() {
return FN();
}
void inject_builtins() {
func_template<void *, __exception_info>();
func_template<unsigned long, __exception_code>();
}
void use_seh_after_cxx() {
try { // expected-note {{conflicting 'try' here}}
might_crash();
} catch (int) {
}
__try { // expected-error {{cannot use C++ 'try' in the same function as SEH '__try'}}
might_crash();
} __except(1) {
}
}
void use_cxx_after_seh() {
__try { // expected-note {{conflicting '__try' here}}
might_crash();
} __except(1) {
}
try { // expected-error {{cannot use C++ 'try' in the same function as SEH '__try'}}
might_crash();
} catch (int) {
}
}
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