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