segmentation fault while compiling template class with inner class and enum

[Quuxplusone]

Bugzilla Link	PR12317
Status	RESOLVED FIXED
Importance	P normal
Reported by	Martin Richtarsky (clang@martinien.de)
Reported on	2012-03-20 14:52:12 -0700
Last modified on	2012-03-21 22:37:25 -0700
Version	trunk
Hardware	PC Linux
CC	dgregor@apple.com, efriedma@quicinc.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
Fixed by commit(s)
Attachments	clang_crash.cpp (214 bytes, text/plain) clang_crash-FOi1BT.ii (341 bytes, application/octet-stream) clang_crash-FOi1BT.sh (2015 bytes, application/octet-stream)
Blocks
Blocked by
See also

Created attachment 8243
source file

Hi clang developers,

while compiling the following code I get a segfault.

clang_crash.cpp:

template <class A>
class Outer
{
public:
  class Inner
  {
  public:
    //Inner();
    enum {
      VAL1 = 1
    };
    //static const int VAL1=1;

    char b[100-VAL1];
  };

  Inner inner;
};

Outer<int> outer;

/usr> clang++ clang_crash.cpp
clang: error: unable to execute command: Segmentation fault

Some observations:
- removing the enum and uncommenting the "static const int VAL1" makes it work
- uncommenting the Inner() constructor causes about 20 identical errors to be
printed out:

  clang_crash.cpp:8:5: error: constructor cannot be redeclared
      Inner();

Afterwards, clang still segfaults.
- when the outer class isn't a template it also works

I have attached the source, preprocessed source and the run script.

clang version 3.1 (trunk 153100)
Target: x86_64-unknown-linux-gnu
Thread model: posix

Could you have a look please?

Best regards,
Martin

[Quuxplusone]

Attached clang_crash.cpp (214 bytes, text/plain): source file

[Quuxplusone]

Attached clang_crash-FOi1BT.ii (341 bytes, application/octet-stream): preprocessed source

[Quuxplusone]

Attached clang_crash-FOi1BT.sh (2015 bytes, application/octet-stream): run script

[Quuxplusone]

Fixed in r153236.