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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2011-09-18 00:06:34 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2011-09-18 00:06:34 +0000 |
| commit | 16ee8191ca6953e173c983e3175a8d7504b5baae (patch) | |
| tree | 201dafc7d4ff0022c29d86bbdafe6656ff492189 /test/CodeGenCXX/member-init-anon-union.cpp | |
| parent | de5998f1d7dcecb777257ec932142d65de636eb8 (diff) | |
Fix PR10531. Attach an initializer to anonymous unions, since the default constructor might not be trivial (if there is an in-class initializer for some member) and might be deleted.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139991 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/member-init-anon-union.cpp')
| -rw-r--r-- | test/CodeGenCXX/member-init-anon-union.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/CodeGenCXX/member-init-anon-union.cpp b/test/CodeGenCXX/member-init-anon-union.cpp new file mode 100644 index 0000000000..d45dfa0d76 --- /dev/null +++ b/test/CodeGenCXX/member-init-anon-union.cpp @@ -0,0 +1,35 @@ +// RUN: %clang_cc1 %s -std=c++0x -emit-llvm -o - | FileCheck %s + +// PR10531. + +static union { + int a = 42; + char *b; +}; + +int f() { return a; } + +// CHECK: define internal void @__cxx_global_var_init +// CHECK-NOT: } +// CHECK: call {{.*}}@"[[CONSTRUCT_GLOBAL:.*]]C1Ev" + + +int g() { + union { + int a; + int b = 81; + }; + // CHECK: define {{.*}}_Z1gv + // CHECK-NOT: } + // CHECK: call {{.*}}@"[[CONSTRUCT_LOCAL:.*]]C1Ev" + return b; +} + + +// CHECK: define {{.*}}@"[[CONSTRUCT_LOCAL]]C2Ev" +// CHECK-NOT: } +// CHECK: store i32 81 + +// CHECK: define {{.*}}@"[[CONSTRUCT_GLOBAL]]C2Ev" +// CHECK-NOT: } +// CHECK: store i32 42 |