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| author | peter klausler <pklausler@nvidia.com> | 2021-06-15 15:19:18 -0700 |
|---|---|---|
| committer | peter klausler <pklausler@nvidia.com> | 2021-06-16 14:29:39 -0700 |
| commit | c375ec86132984bc3915323fbe3f8c71f4d5503f (patch) | |
| tree | 208d2e3c4941d47ade6a102491ecd4fb67fc8465 /lldb/source/Commands/CommandObjectGUI.cpp | |
| parent | 8b062b61606270950645d73b68036c9ab2c7c4bc (diff) | |
| download | llvm-c375ec86132984bc3915323fbe3f8c71f4d5503f.zip llvm-c375ec86132984bc3915323fbe3f8c71f4d5503f.tar.gz llvm-c375ec86132984bc3915323fbe3f8c71f4d5503f.tar.bz2 | |
[flang] Use a "double-double" accumulator in SUM
Use a "double-double" accumulator, a/k/a Kahan summation,
in the SUM intrinsic in the runtime for real & complex.
This seems to be the best-recommended technique for reducing
error, as opposed to the initial implementation of SUM's
distinct accumulators for positive and negative items.
Differential Revision: https://reviews.llvm.org/D104338
Diffstat (limited to 'lldb/source/Commands/CommandObjectGUI.cpp')
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