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Description of problem:
The sse2 instruction pminub and pmaxub uses unsigned as basic type. In some 
former versions of gcc, the signature of pminub128 uses signed (i.e. char) as 
basic type.

It is possible to cast between the two vector type to avoid the:

error: incompatible type for argument 1 of `__builtin_ia32_pminub128'

but I need to know from which version of gcc this is fixed (in order to perform 
correct cast as function of gcc version).



Version-Release number of selected component (if applicable):
gcc 4.0.0 and gcc 3.x.y

How reproducible:
Always

Steps to Reproduce:
1. (using gcc version 3.x.y) gcc -c -msse3 -O3 -Wall gcc_pminub128_bug.c
2.
3.
  

Actual Results:  gcc_pminub128_bug.c: In function `packed_min':
gcc_pminub128_bug.c:4: error: incompatible type for argument 1 of 
`__builtin_ia32_pminub128'
gcc_pminub128_bug.c:4: error: incompatible type for argument 2 of 
`__builtin_ia32_pminub128'
gcc_pminub128_bug.c:4: error: incompatible types in return


Expected Results:  No errors

Additional info:

In essence, what I need is information for which version of gcc which uses 
signed vs. unsigned basic types for the vector argument to pminub128 and 
pmaxub128.