vector extension bug?

[Richard Henderson]

On 11/29/2010 03:25 PM, Ian Lance Taylor wrote:
> Basically, the 64-bit calling convention support assumes that the SSE2
> instructions are always available, and silently fails when -mno-sse2 is
> used.  I don't really have an opinion as to whether the compiler needs
> to support this case correctly, but I think that clearly it must not
> silently fail.

I believe it should non-silently fail to compile this.  I really can't
imagine a viable reason to introduce a soft-fp calling convention for
the 64-bit compiler.

If David really wants to continue with this project, he should be 
working with the 32-bit compiler, since (1) 32-bit cpus may legitimately
not have SSE registers, and (2) it already has a calling convention
that can handle this.


r~