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| author | David Monniaux <David.Monniaux@univ-grenoble-alpes.fr> | 2022-03-07 16:21:13 +0100 |
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| committer | David Monniaux <David.Monniaux@univ-grenoble-alpes.fr> | 2022-03-07 16:21:13 +0100 |
| commit | 25e82e849de35eaef24412b468d3a36c72f4fcb6 (patch) | |
| tree | e6abc778dfa37ac5df55c8b0926ed681b9c04f04 /kvx/ExtZ.v | |
| parent | ab776cd94e000d07c4d14521a8d0c635d3b8412c (diff) | |
| parent | 2d9138547d93c32c0ec5ae54b4afc022f5c434ff (diff) | |
| download | compcert-kvx-25e82e849de35eaef24412b468d3a36c72f4fcb6.tar.gz compcert-kvx-25e82e849de35eaef24412b468d3a36c72f4fcb6.zip | |
Merge remote-tracking branch 'origin/kvx_fp_division' into kvx-work
Diffstat (limited to 'kvx/ExtZ.v')
| -rw-r--r-- | kvx/ExtZ.v | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kvx/ExtZ.v b/kvx/ExtZ.v new file mode 100644 index 00000000..095fd0cc --- /dev/null +++ b/kvx/ExtZ.v @@ -0,0 +1,12 @@ +Require Import Coq.ZArith.Zdiv. + +Open Scope Z. + +Definition Zdiv_ne (a b : Z) := + let q := Z.div a b in + let q1 := Z.succ q in + match Z.compare (a-b*q) (b*q1-a) with + | Lt => q + | Gt => q1 + | Eq => (if Z.even q then q else q1) + end. |