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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 | 382bc51fddbfb010b2e068bbdf94ab99811b2768 (patch) | |
| tree | a3e11869468d7db13f7c46708c3a9d85f26b8bb9 /clang/test/CodeGenCXX/reference-init.cpp | |
| parent | 620db1f3dd08ebbba71b0e16f83c11323e04bc05 (diff) | |
| download | llvm-382bc51fddbfb010b2e068bbdf94ab99811b2768.zip llvm-382bc51fddbfb010b2e068bbdf94ab99811b2768.tar.gz llvm-382bc51fddbfb010b2e068bbdf94ab99811b2768.tar.bz2 | |
PR32044: Fix some cases where we would confuse a transparent init-list expression with an aggregate init.
llvm-svn: 296033
Diffstat (limited to 'clang/test/CodeGenCXX/reference-init.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/reference-init.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/clang/test/CodeGenCXX/reference-init.cpp b/clang/test/CodeGenCXX/reference-init.cpp index 3a3eaee..ba7b282 100644 --- a/clang/test/CodeGenCXX/reference-init.cpp +++ b/clang/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 |