[llvm-dev] 128 bit float constant

Tim Northover via llvm-dev llvm-dev at lists.llvm.org
Wed Apr 10 04:44:10 PDT 2019

Hi Peter,

On Wed, 10 Apr 2019 at 08:01, Peter McKinna via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
>   Just wondering if it's possible to construct a 128 bit quad precision floating point
> constant without converting the value back to a string.

It looks like the constructor that takes an APInt treats it as a
bag-of-bits representation according to IEEE float. It eventually ends
up at https://llvm.org/docs/doxygen/APFloat_8cpp_source.html#l03098 as
far as I can tell.



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