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fix last remaining warning when building nim (intVal should be Int128) + minor cleanups (#13841)

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Timothee Cour 2020-04-01 23:53:52 -07:00 • committed by GitHub
commit 68539a2926
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4 changed files with 29 additions and 47 deletions
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30
compiler/int128.nim
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@ -29,27 +29,27 @@ template high*(t: typedesc[Int128]): Int128 = Max
proc `$`*(a: Int128): string
proc toInt128*[T: SomeInteger](arg: T): Int128 =
when T is SomeUnsignedInt:
proc toInt128*[T: SomeInteger | bool](arg: T): Int128 =
when T is bool: result.sdata(0) = int32(arg)
elif T is SomeUnsignedInt:
when sizeof(arg) <= 4:
result.udata[0] = uint32(arg)
else:
result.udata[0] = uint32(arg and T(0xffffffff))
result.udata[1] = uint32(arg shr 32)
elif sizeof(arg) <= 4:
result.sdata(0) = int32(arg)
if arg < 0: # sign extend
result.sdata(1) = -1
result.sdata(2) = -1
result.sdata(3) = -1
else:
when sizeof(arg) <= 4:
result.sdata(0) = int32(arg)
if arg < 0: # sign extend
result.sdata(1) = -1
result.sdata(2) = -1
result.sdata(3) = -1
else:
let tmp = int64(arg)
result.udata[0] = uint32(tmp and 0xffffffff)
result.sdata(1) = int32(tmp shr 32)
if arg < 0: # sign extend
result.sdata(2) = -1
result.sdata(3) = -1
let tmp = int64(arg)
result.udata[0] = uint32(tmp and 0xffffffff)
result.sdata(1) = int32(tmp shr 32)
if arg < 0: # sign extend
result.sdata(2) = -1
result.sdata(3) = -1
template isNegative(arg: Int128): bool =
arg.sdata(3) < 0