Problem with range transform with gcc-4.8 optimized

[Fabien Nendaz <fabien@…>]

With gcc4.8, if the option -O is used, the operation " | transformed(arg1)" on a transformed range leads to unexpected results.

E.g. if "initialVec" is a vector containing any values, the following line gives a null resultVec:
auto resultVec = initialVec | transformed( arg1 * 2 ) | transformed( arg1 );

This problem is also present with clang (optimized) and visual studio 2013 (in release), but not in debug modes, and not with gcc-4.6.

Note that an operation in the second transformed remove this problem: the following code is working as expected:
auto resultVec = initialVec | transformed( arg1 * 2 ) | transformed( arg1 * 1 );

This problem has been reproduced with boost 1.49, 1.55 and 1.56.

[Fabien Nendaz <fabien@…>]

Minimal program to reproduce