llvm-project/clang/test/CodeGenCXX/mangle-local-anonymous-unions.cpp
Evgeny Astigeevich 665027dbc4 Fix the issue of mangling of local anonymous unions (Itanium C++ ABI):
A discriminator is used for the first occurrence of a name.
inline int f1 () {
  static union {
    int a;
    long int b;
  };

  static union {
    int c;
    double d;
  };

  return a+c;
}
The name of the second union is mangled as _ZZ2f1vE1c_0 instead of _ZZ2f1vE1c.

Differential Revision: http://reviews.llvm.org/D6295

llvm-svn: 224131
2014-12-12 16:17:46 +00:00

43 lines
526 B
C++

// RUN: %clang_cc1 %s -emit-llvm -triple %itanium_abi_triple -o - | FileCheck %s
// CHECK-DAG: @_ZZ2f0vE1a
// CHECK-DAG: @_ZZ2f0vE1c
// CHECK-DAG: @_ZZ2f0vE1e_0
inline int f0() {
static union {
int a;
long int b;
};
static union {
int c;
double d;
};
if (0) {
static union {
int e;
int f;
};
}
static union {
int e;
int f;
};
return a+c;
}
inline void nop() {
static union {
union {
};
};
}
int f1 (int a, int c) {
nop();
return a+c+f0();
}