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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2017-02-23 22:41:47 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2017-02-23 22:41:47 +0000 |
| commit | fad0d791961d3f29e5340bba709be214c53e9d13 (patch) | |
| tree | 325072b0feee96d38e3510c32cdcba576d909b22 /test/CodeGenCXX/reference-init.cpp | |
| parent | 0df4330a24251e7d19550819018be741e4b4b3e0 (diff) | |
PR32044: Fix some cases where we would confuse a transparent init-list expression with an aggregate init.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@296033 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/reference-init.cpp')
| -rw-r--r-- | test/CodeGenCXX/reference-init.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/test/CodeGenCXX/reference-init.cpp b/test/CodeGenCXX/reference-init.cpp index 3a3eaeee78..ba7b282028 100644 --- a/test/CodeGenCXX/reference-init.cpp +++ b/test/CodeGenCXX/reference-init.cpp @@ -1,4 +1,6 @@ -// RUN: %clang_cc1 -emit-llvm-only -triple %itanium_abi_triple -verify %s +// RUN: %clang_cc1 -triple %itanium_abi_triple -verify %s +// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - -std=c++98 | FileCheck %s --check-prefix=CHECK-CXX98 +// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - -std=c++11 | FileCheck %s --check-prefix=CHECK-CXX11 // expected-no-diagnostics struct XPTParamDescriptor {}; @@ -23,3 +25,12 @@ Foo& ignoreSetMutex = *(new Foo); // Binding to a bit-field that requires a temporary. struct { int bitfield : 3; } s = { 3 }; const int &s2 = s.bitfield; + +// In C++98, this forms a reference to itself. In C++11 onwards, this performs +// copy-construction. +struct SelfReference { SelfReference &r; }; +extern SelfReference self_reference_1; +SelfReference self_reference_2 = {self_reference_1}; +// CHECK-CXX98: @self_reference_2 = global %[[SELF_REF:.*]] { %[[SELF_REF]]* @self_reference_1 } +// CHECK-CXX11: @self_reference_2 = global %[[SELF_REF:.*]] zeroinitializer +// CHECK-CXX11: call {{.*}}memcpy{{.*}} @self_reference_2 {{.*}} @self_reference_1 |