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~
