83 lines
1.4 KiB
C++
83 lines
1.4 KiB
C++
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// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -O3 -o - | FileCheck %s
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struct Empty { };
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struct A {
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explicit A(unsigned a = 0xffffffff) : a(a) { }
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unsigned a;
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};
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struct B : A, Empty {
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B() : A(), Empty() { }
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};
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struct C : A, Empty {
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C() : A(), Empty() { }
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C(const C& other) : A(0x12345678), Empty(other) { }
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};
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struct D : A, Empty {
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D& operator=(const D& other) {
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a = 0x87654321;
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Empty::operator=(other);
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return *this;
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}
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};
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#define CHECK(x) if (!(x)) return __LINE__
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// PR7012
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// CHECK-LABEL: define i32 @_Z1fv()
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int f() {
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B b1;
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// Check that A::a is not overwritten by the Empty default constructor.
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CHECK(b1.a == 0xffffffff);
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C c1;
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C c2(c1);
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// Check that A::a has the value set in the C::C copy constructor.
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CHECK(c2.a == 0x12345678);
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D d1, d2;
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d2 = d1;
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// Check that A::as has the value set in the D copy assignment operator.
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CHECK(d2.a == 0x87654321);
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// Success!
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// CHECK: ret i32 0
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return 0;
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}
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namespace PR8796 {
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struct FreeCell {
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};
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union ThingOrCell {
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FreeCell t;
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FreeCell cell;
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};
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struct Things {
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ThingOrCell things;
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};
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Things x;
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}
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#ifdef HARNESS
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extern "C" void printf(const char *, ...);
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int main() {
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int result = f();
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if (result == 0)
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printf("success!\n");
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else
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printf("test on line %d failed!\n", result);
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return result;
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}
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#endif
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