r234767 - [CodeGen] Fix crash with duplicated mangled name.

[Argyrios Kyrtzidis]

+ Yunzhong

> On Apr 15, 2015, at 1:50 AM, Renato Golin <renato.golin at linaro.org> wrote:
> 
> I have reverted it for now, since new bugs have been introduced
> silently and this is the second time this week, we don't want to
> escalate.
> 
> Let me know if you need help testing it next time.
> 
> cheers,
> --renato
> 
> On 15 April 2015 at 09:38, Renato Golin <renato.golin at linaro.org> wrote:
>> Hi,
>> 
>> This patch broke all ARM bots:
>> 
>> http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15-full/builds/4713
>> 
>> static llvm::CastInst*
>> llvm::CastInst::Create(llvm::Instruction::CastOps, llvm::Value*,
>> llvm::Type*, const llvm::Twine&, llvm::Instruction*): Assertion
>> `castIsValid(op, S, Ty) && "Invalid cast!"' failed.
>> 
>> Can you please have a look?
>> 
>> cheers,
>> --renato