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1 // RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - -std=c++11 |FileCheck %s
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2
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3 class x {
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4 public: int operator=(int);
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5 };
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6 void a() {
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7 x a;
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8 a = 1u;
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9 }
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10
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11 void f(int i, int j) {
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12 // CHECK: load i32
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13 // CHECK: load i32
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14 // CHECK: add nsw i32
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15 // CHECK: store i32
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16 // CHECK: store i32 17, i32
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17 // CHECK: ret
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18 (i += j) = 17;
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19 }
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20
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21 // Taken from g++.old-deja/g++.jason/net.C
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22 namespace test1 {
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23 template <class T> void fn (T t) { }
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24 template <class T> struct A {
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25 void (*p)(T);
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26 A() { p = fn; }
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27 };
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28
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29 A<int> a;
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30 }
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31
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32 // Ensure that we use memcpy when we would have selected a trivial assignment
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33 // operator, even for a non-trivially-copyable type.
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34 struct A {
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35 A &operator=(const A&);
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36 };
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37 struct B {
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38 B(const B&);
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39 B &operator=(const B&) = default;
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40 int n;
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41 };
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42 struct C {
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43 A a;
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44 B b[16];
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45 };
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46 void b(C &a, C &b) {
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47 // CHECK: define {{.*}} @_ZN1CaSERKS_(
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48 // CHECK: call {{.*}} @_ZN1AaSERKS_(
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49 // CHECK-NOT: call {{.*}} @_ZN1BaSERKS_(
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50 // CHECK: call {{.*}} @{{.*}}memcpy
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51 // CHECK-NOT: call {{.*}} @_ZN1BaSERKS_(
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52 // CHECK: }
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53 a = b;
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54 }
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