[llvm-dev] [PPC, APFloat] Add full PPCDoubleDouble to APFloat

Tim Shen via llvm-dev llvm-dev at lists.llvm.org
Fri Sep 30 14:43:12 PDT 2016

I have found some internal test failures due to the wrong constant folding
on ppc_fp128.

As documented in APFloat::PPCDoubleDouble, APFloat doesn't support PowerPC
double-double correctly <

To support this, we need to add a second tuple of (sign, exponent,
significand) to APFloat. I wonder where should I start to change, so that
it's less hacky? I certainly expect refactoring to come. :)

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