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106509
2018 Sep 11
2
[FPEnv] FNEG instruction
+1 for an explicit FNEG instruction, since as previously discussed, it has
stricter requirements for what value may be returned by the operation. And
strengthening the requirement on FSUB is not feasible when the values are
variables rather than literals.
That is:
FSUB(-0.0, NaN) = either NaN *or* -NaN
FSUB(-0.0, -NaN) = either NaN *or* -NaN
FNEG(NaN) = -NaN
FNEG(-NaN) = NaN
On Tue, Sep 11,