[Bug rtl-optimization/15927] THUMB -O2: strength-reduced iteration variable ends up off by 1

[danfuzz at milk dot com]

------- Additional Comments From danfuzz at milk dot com  2004-06-21 18:07 -------
Created an attachment (id=6595)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6595&action=view)
annotated RTL dumps for m2.c

I believe I've managed to narrow down when the error gets introduced to after
local register allocation and perhaps during global register allocation.
Excerpts of -dl and -dg output with commentary are attached.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15927