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authorGuillaume Melquiond2020-10-01 20:34:40 +0200
committerGuillaume Melquiond2020-11-13 15:14:34 +0100
commit136454f306c8d4de83b8f37201307205a7c57786 (patch)
tree8a6c93f3eda996091d79fbcb3bcfc326fccdd5fb /Makefile.common
parentb6fadbf6f08860609961f6dbad8a036346925265 (diff)
Inline the functions from coq_float64.h.
Since the code is compiled in -fPIC mode, the compiler cannot inline the functions, due to the ABI mandating the ability to interpose visible symbols. Hiding the symbols of coq_float64.h would work, except that they float64.ml needs to reference them. (See #13124 for more details.) This commit improves performances by 7% on the following code. From Coq Require Import Int63 BinPos PrimFloat. Definition foo n := let two := of_int63 2 in Pos.iter (fun x => sub (mul x two) two) two n. Time Eval vm_compute in foo 100000000. If we consider only the floating-point operations (by ignoring the cost of the loop), the speedup is actually 30%.
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