Why the V4QImode vector operations are expanded into many SImode at "oplower" pass?

[Richard Henderson]

On Wed, May 18, 2005 at 11:10:42PM +0800, Ling-hua Tseng wrote:
> So I guess that there are some miss-configured in my ports, but I can't 
> find it.

Put a breakpoint at tree-complex.c line 962.  Examine the conditions
leading up to 

      if ((GET_MODE_CLASS (compute_mode) == MODE_VECTOR_INT
           || GET_MODE_CLASS (compute_mode) == MODE_VECTOR_FLOAT)
          && op != NULL
          && op->handlers[compute_mode].insn_code != CODE_FOR_nothing)
        return;

to find out why the return isn't taken.  There aren't really very
many options.

The one that jumps first to my mind is that the "addv4qi3" instruction
pattern doesn't actually exist because you have a typo in the name.


r~