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Re: PR/29798, def forward propagated even though it does not dominate use



Re: Andrew Pinski's comments, although it would be nice to have a
non-floating point testcase, I don't think its an issue in this
case;
In fact, the test passed even with 3.0 in the test. I changed it to 2.0 for "paranoia" and, as Geert suggested, it should be exact on any FPU designed by a mentally sane person.
The one change I would recommend, however, is to replace the
#include <stdlib.h> with "extern void abort(void);" which makes
the test self contained, and easier to debug in gdb.

Ok for mainline, with that change.
Thanks,

Paolo


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