On 2014/04/04 14:14:17, oetuaho-nv wrote:
On 2014/04/04 09:43:05, jbramley wrote:
> I can't find any use of vmsr that sets the rounding mode to anything
> else. A few tests hit it, but the rounding mode is correct in every
> case. Under what conditions can FPSCR be wrong here?
Yes, it's not being set by other code generated by v8, but is there
anything preventing other code that runs in the same execution context
setting the FPSCR to another value?
Sort of, yes. AAPCS (the procedure-call standard) says that the
rounding-mode bits may be modified by "specific support functions that
affect the global state of the application". That is, we would have to
do it explicitly somewhere.
https://codereview.chromium.org/222403002/
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