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2007 Mar 22
0
[LLVMdev] a question about constant fold for fdiv
...y handle 0/0, but the > position of the IEEE appears to be that it should yield a NaN of the > appropriate sign. See > http://standards.ieee.org/reading/ieee/interp/754-1985.html OK, it does explicitly handle it. My reading comprehension seems to be lacking right now :( http://754r.ucbtest.org/standards/754xml.html#invalid-exception The above lists all operations that yield a NaN. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20070322/eedc80e2/attachment.html>
2007 Mar 22
2
[LLVMdev] a question about constant fold for fdiv
Jeff Cohen wrote: > Jeff Cohen wrote: >> Reid Spencer wrote: >>> On Thu, 2007-03-22 at 15:50 -0700, leo han wrote: >>> >>>> Hello, I have a question about the constant folding for fdiv instructions. >>>> For the instruction "fdiv double 0.0, 0.0", the folded result is inf. I >>>> think this should be nan. Can anyone tell