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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s -fsanitize=unreachable | FileCheck %s
extern void __attribute__((noreturn)) abort();
// CHECK-LABEL: define void @_Z14calls_noreturnv
void calls_noreturn() {
abort();
// Check that there are no attributes on the call site.
// CHECK-NOT: call void @_Z5abortv{{.*}}#
// CHECK: __ubsan_handle_builtin_unreachable
// CHECK: unreachable
}
struct A {
// CHECK: declare void @_Z5abortv{{.*}} [[ABORT_ATTR:#[0-9]+]]
// CHECK-LABEL: define linkonce_odr void @_ZN1A5call1Ev
void call1() {
// CHECK-NOT: call void @_ZN1A16does_not_return2Ev{{.*}}#
does_not_return2();
// CHECK: __ubsan_handle_builtin_unreachable
// CHECK: unreachable
}
// Test static members.
static void __attribute__((noreturn)) does_not_return1() {
// CHECK-NOT: call void @_Z5abortv{{.*}}#
abort();
}
// CHECK-LABEL: define linkonce_odr void @_ZN1A5call2Ev
void call2() {
// CHECK-NOT: call void @_ZN1A16does_not_return1Ev{{.*}}#
does_not_return1();
// CHECK: __ubsan_handle_builtin_unreachable
// CHECK: unreachable
}
// Test calls through pointers to non-static member functions.
typedef void __attribute__((noreturn)) (A::*MemFn)();
// CHECK-LABEL: define linkonce_odr void @_ZN1A5call3Ev
void call3() {
MemFn MF = &A::does_not_return2;
(this->*MF)();
// CHECK-NOT: call void %{{.*}}#
// CHECK: __ubsan_handle_builtin_unreachable
// CHECK: unreachable
}
// Test regular members.
// CHECK-LABEL: define linkonce_odr void @_ZN1A16does_not_return2Ev({{.*}})
// CHECK-SAME: [[DOES_NOT_RETURN_ATTR:#[0-9]+]]
void __attribute__((noreturn)) does_not_return2() {
// CHECK-NOT: call void @_Z5abortv(){{.*}}#
abort();
// CHECK: call void @__ubsan_handle_builtin_unreachable
// CHECK: unreachable
// CHECK: call void @__ubsan_handle_builtin_unreachable
// CHECK: unreachable
}
};
// CHECK: define linkonce_odr void @_ZN1A16does_not_return1Ev() [[DOES_NOT_RETURN_ATTR]]
void force_irgen() {
A a;
a.call1();
a.call2();
a.call3();
}
// CHECK-NOT: [[ABORT_ATTR]] = {{[^}]+}}noreturn
// CHECK-NOT: [[DOES_NOT_RETURN_ATTR]] = {{[^}]+}}noreturn
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