[cfe-dev] Bug handling (void) casts

[Oliver Hunt]

In my continuing attempts to compile my old basic interpeter i have  
got on to the next failure:

void f();

void g(){
    1 ? f() : (void)0;
}

I'm just sending this to the list on the off chance it's already known  
about, the trace is as follows:
Assertion failed: (getType() != Type::VoidTy && "Cannot assign a name  
to void values!"), function setName, file Value.cpp, line 151.
0   clang                               0x001fb4b5  
_ZN40_GLOBAL__N_Signals.cpp_00000000_06AE939215PrintStackTraceEv + 45
1   clang                               0x001fb85b  
_ZN40_GLOBAL__N_Signals.cpp_00000000_06AE939213SignalHandlerEi + 323
2   libSystem.B.dylib                   0x9680a97b _sigtramp + 43
3   ???                                 0xffffffff 0x0 + 4294967295
4   libSystem.B.dylib                   0x96883782 raise + 26
5   libSystem.B.dylib                   0x96892d3f abort + 73
6   libSystem.B.dylib                   0x96884923 __assert_rtn + 101
7   clang                               0x001b0ddb  
_ZN4llvm5Value7setNameEPKcj + 149
8   clang                               0x001b1200  
_ZN4llvm5Value7setNameERKSs + 58
9   clang                               0x0003cd1a  
_ZN4llvm7PHINodeC2EPKNS_4TypeERKSsPNS_11InstructionE + 106
10  clang                               0x0003cd46  
_ZN4llvm7PHINodeC1EPKNS_4TypeERKSsPNS_11InstructionE + 38
11  clang                               0x00043bf0  
_ZN4llvm11LLVMBuilder9CreatePHIEPKNS_4TypeEPKc + 88
12  clang                               0x0004182f  
_ZN5clang7CodeGen15CodeGenFunction14EmitScalarExprEPKNS_4ExprE + 1187
13  clang                               0x00045cfe  
_ZN5clang11StmtVisitorIN45_GLOBAL__N_CGExprScalar 
.cpp_00000000_104F220417ScalarExprEmitterEPN4llvm5ValueEE5VisitEPNS_4StmtE 
  + 3036
14  clang                               0x00041417  
_ZN5clang7CodeGen15CodeGenFunction14EmitScalarExprEPKNS_4ExprE + 139
15  clang                               0x00046e88  
_ZN5clang7CodeGen15CodeGenFunction8EmitStmtEPKNS_4StmtE + 244
16  clang                               0x00048514  
_ZN5clang7CodeGen15CodeGenFunction16EmitCompoundStmtERKNS_12CompoundStmtEbPN4llvm5ValueEb 
  + 152
17  clang                               0x00046f5c  
_ZN5clang7CodeGen15CodeGenFunction8EmitStmtEPKNS_4StmtE + 456
18  clang                               0x00049a22  
_ZN5clang7CodeGen15CodeGenFunction12GenerateCodeEPKNS_12FunctionDeclE  
+ 898
19  clang                               0x0004a801  
_ZN5clang7CodeGen13CodeGenModule12EmitFunctionEPKNS_12FunctionDeclE + 71
20  clang                               0x000548e4  
_ZN5clang7CodeGen15CodeGenFunctionEPNS0_13CodeGenModuleEPNS_12FunctionDeclE 
  + 24
21  clang                               0x00006134  
_ZN45_GLOBAL__N_ASTConsumers 
.cpp_00000000_9D6638BA11LLVMEmitter18HandleTopLevelDeclEPN5clang4DeclE  
+ 76
22  clang                               0x00067828  
_ZN5clang8ParseASTERNS_12PreprocessorEjPNS_11ASTConsumerEb + 258
23  clang                               0x00026a12  
_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE + 1828
24  clang                               0x000288be main + 966
25  clang                               0x0000249e start + 54

--Oliver