Re: using scratchpads to enhance RTL-level if-conversion: the new patch now passes bootstrap with the default BUILD_CONFIG [i.e. no stage2-to-stage3 comparison errors even with debugging info off in stage2 and on in stage3] AND passes "make check" testing with no new regressions

[Bernd Schmidt]

Oh, one other thing. To be able to include your code we need to have a 
copyright assignment to the FSF from you. I see one previous commit from 
you, but only a trivial one and with a corporate email address. Have you 
gone through the copyright assignment process?

Bernd