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author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-07-03 15:07:17 +0000 |
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committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-07-03 15:07:17 +0000 |
commit | a0aaa3552d53b20a99566ac7116063fbb31b9964 (patch) | |
tree | 72b86341e136accdba1c339230cee0f1ba5013d9 /common/Values.v | |
parent | 18bbf6d3cfb15219c87ebc79a5dd58bf75f2b4c4 (diff) | |
download | compcert-a0aaa3552d53b20a99566ac7116063fbb31b9964.tar.gz compcert-a0aaa3552d53b20a99566ac7116063fbb31b9964.zip |
Treat casts int64 -> float32 as primitive operations instead of two
casts int64 -> float64 -> float32. The latter causes double rounding
errors.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2290 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'common/Values.v')
-rw-r--r-- | common/Values.v | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/common/Values.v b/common/Values.v index 7caf5515..b937071c 100644 --- a/common/Values.v +++ b/common/Values.v @@ -438,6 +438,18 @@ Definition floatoflongu (v: val) : option val := | _ => None end. +Definition singleoflong (v: val) : option val := + match v with + | Vlong n => Some (Vfloat (Float.singleoflong n)) + | _ => None + end. + +Definition singleoflongu (v: val) : option val := + match v with + | Vlong n => Some (Vfloat (Float.singleoflongu n)) + | _ => None + end. + Definition addl (v1 v2: val): val := match v1, v2 with | Vlong n1, Vlong n2 => Vlong(Int64.add n1 n2) |