[LLVMdev] FP problems in different backends?

[Eli Friedman]

On Wed, Jan 14, 2009 at 8:43 AM, Roman Levenstein
<romix.llvm at googlemail.com> wrote:
> The compilation of the attached BC file fails on multiple backends, namely:
>  ia64, mips, mipsel, alpha

Hmm, looks like real bugs. None of those backends are very widely
used, so it's not too surprising there are issues.   ia64 and alpha
are experimental, so issues are expected.  I'm not sure of the status
of the mips backend; it might be worth filing a bug for that.

> May be I'm testing in the wong way?

Well, in general, the output of llvm-gcc isn't portable, but besides
platform-specific intrinsics, llc shouldn't abort.  Your testing
methodology isn't off as long as you don't care whether the result
actually runs, and there isn't anything wrong with the input files as
far as I can tell.

-Eli