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Make uniqueName deterministic for shared constants #602

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Make uniqueName deterministic for shared constants #602

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12 changes: 8 additions & 4 deletions KLR/Compile.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -30,11 +30,15 @@ open Pass (CompileResult)

private partial def uniqueName (dst : String) (base : String) : IO String := do
let fName := s!"{dst}/{base}.npy"
if ← FilePath.pathExists (FilePath.mk fName) then
let suffix ← IO.rand 0 (2^64 - 1)
uniqueName dst s!"{base}_{suffix}"
else
if !(← FilePath.pathExists (FilePath.mk fName)) then
return base
let entries ← System.FilePath.readDir (FilePath.mk dst)
let count := entries.filter (fun e =>
e.fileName.startsWith s!"{base}_" && e.fileName.endsWith ".npy") |>.size
let gen := mkStdGen count
let (suffix, _) := RandomGen.next gen
let suffix := suffix % (2^64)
uniqueName dst s!"{base}_{suffix}"

private def sharedConstant
(outfolder : String)
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