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Adds optimized emit for int64 constants #3620

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merged 2 commits into from
Sep 25, 2017
Merged

Adds optimized emit for int64 constants #3620

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d4b0a9f
Adds optimized emit for int64 constants.
ChrSteinert Sep 18, 2017
d3ee613
Adds comment linking to the changing PR.
ChrSteinert Sep 21, 2017
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9 changes: 8 additions & 1 deletion src/fsharp/IlxGen.fs
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Original file line number Diff line number Diff line change
Expand Up @@ -2072,7 +2072,14 @@ and GenConstant cenv cgbuf eenv (c,m,ty) sequel =
| Const.SByte i -> CG.EmitInstr cgbuf (pop 0) (Push [ilTy]) (mkLdcInt32 (int32 i))
| Const.Int16 i -> CG.EmitInstr cgbuf (pop 0) (Push [ilTy]) (mkLdcInt32 (int32 i))
| Const.Int32 i -> CG.EmitInstr cgbuf (pop 0) (Push [ilTy]) (mkLdcInt32 i)
| Const.Int64 i -> CG.EmitInstr cgbuf (pop 0) (Push [ilTy]) (iLdcInt64 i)
| Const.Int64 i ->
// see https://github.com/Microsoft/visualfsharp/pull/3620
if i >= int64 System.Int32.MinValue && i <= int64 System.Int32.MaxValue then
CG.EmitInstrs cgbuf (pop 0) (Push [ilTy]) [ mkLdcInt32 (int32 i); AI_conv DT_I8 ]
elif i >= int64 System.UInt32.MinValue && i <= int64 System.UInt32.MaxValue then
CG.EmitInstrs cgbuf (pop 0) (Push [ilTy]) [ mkLdcInt32 (int32 i); AI_conv DT_U8 ]
else
CG.EmitInstr cgbuf (pop 0) (Push [ilTy]) (iLdcInt64 i)
| Const.IntPtr i -> CG.EmitInstrs cgbuf (pop 0) (Push [ilTy]) [iLdcInt64 i; AI_conv DT_I ]
| Const.Byte i -> CG.EmitInstr cgbuf (pop 0) (Push [ilTy]) (mkLdcInt32 (int32 i))
| Const.UInt16 i -> CG.EmitInstr cgbuf (pop 0) (Push [ilTy]) (mkLdcInt32 (int32 i))
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