Re: Dredging up bugs...

"H. Peter Anvin" wrote:
> 
> Urk.  I just found not just one, but two bugs, related to the same file.
> 
> The bugs are:
> 
> #1. The optimizer doesn't converge; it will run an arbitrary number of
> passes (if you let it, it'll run 1000 passes.)

I can get it to assemble using "-O3", by defining "HEXDATE" and
"DATE_STR" on the command line - not from the makefile. I suspect a
problem with the way Nasm is picking up (or not) those defines from the
Makefile(?). Nasm barfs up that "phase error" message as a "bonus" if
*anything* goes wrong (a "mini-bug"). I don't think the optimizer
actually fails to converge.

> #2. The sequencing of passes when this happens is such that a list file
> is never produced.

H.P.Recktenwald had a "patch" to emit a list file no matter what... As I
recall, it involved not setting "terminate_after_phase"... emitted a bad
output file, too. Just removing "remove(listname)" at line 295 of nasm.c
seems *not* to do it, as I recall. Was a long time ago I looked at it.

Best,
Frank


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