diff options
Diffstat (limited to 'test/CodeGenCXX/references.cpp')
-rw-r--r-- | test/CodeGenCXX/references.cpp | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/test/CodeGenCXX/references.cpp b/test/CodeGenCXX/references.cpp index 3ae1e474f8..ed162492b3 100644 --- a/test/CodeGenCXX/references.cpp +++ b/test/CodeGenCXX/references.cpp @@ -1,4 +1,4 @@ -// RUN: %clang_cc1 -verify -emit-llvm -o - %s | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-apple-darwin -verify -emit-llvm -o - %s | FileCheck %s void t1() { extern int& a; int b = a; @@ -168,3 +168,56 @@ namespace N1 { const int* const args_array[] = { &arg }; } } + +// Bind to subobjects while extending the life of the complete object. +namespace N2 { + class X { + public: + X(const X&); + X &operator=(const X&); + ~X(); + }; + + struct P { + X first; + }; + + P getP(); + + // CHECK: define void @_ZN2N21fEi + // CHECK: call void @_ZN2N24getPEv + // CHECK: getelementptr inbounds + // CHECK: store i32 17 + // CHECK: call void @_ZN2N21PD1Ev + void f(int i) { + const X& xr = getP().first; + i = 17; + } + + struct SpaceWaster { + int i, j; + }; + + struct ReallyHasX { + X x; + }; + + struct HasX : ReallyHasX { }; + + struct HasXContainer { + HasX has; + }; + + struct Y : SpaceWaster, HasXContainer { }; + struct Z : SpaceWaster, Y { }; + + Z getZ(); + + // CHECK: define void @_ZN2N21gEi + // CHECK: call void @_ZN2N24getZEv + // FIXME: Not treated as an lvalue! + void g(int i) { + const X &xr = getZ().has.x; + i = 19; + } +} |