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tyInt tyUint fit target int bit width (#20829)

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Bung 2022-12-01 20:34:00 +08:00 • committed by GitHub
commit 658b28dc57
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17 changed files with 306 additions and 267 deletions
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compiler/types.nim
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@ -753,8 +753,13 @@ proc firstOrd*(conf: ConfigRef; t: PType): Int128 =
assert(t.n.kind == nkRange)
result = getOrdValue(t.n[0])
of tyInt:
if conf != nil and conf.target.intSize == 4:
result = toInt128(-2147483648)
if conf != nil:
case conf.target.intSize
of 8: result = toInt128(0x8000000000000000'i64)
of 4: result = toInt128(-2147483648)
of 2: result = toInt128(-32768)
of 1: result = toInt128(-128)
else: discard
else:
result = toInt128(0x8000000000000000'i64)
of tyInt8: result = toInt128(-128)
@ -797,6 +802,29 @@ proc firstFloat*(t: PType): BiggestFloat =
internalError(newPartialConfigRef(), "invalid kind for firstFloat(" & $t.kind & ')')
NaN
proc targetSizeSignedToKind*(conf: ConfigRef): TTypeKind =
case conf.target.intSize
of 8: result = tyInt64
of 4: result = tyInt32
of 2: result = tyInt16
else: discard
proc targetSizeUnsignedToKind*(conf: ConfigRef): TTypeKind =
case conf.target.intSize
of 8: result = tyUInt64
of 4: result = tyUInt32
of 2: result = tyUInt16
else: discard
proc normalizeKind*(conf: ConfigRef, k: TTypeKind): TTypeKind =
case k
of tyInt:
result = conf.targetSizeSignedToKind()
of tyUInt:
result = conf.targetSizeUnsignedToKind()
else:
result = k
proc lastOrd*(conf: ConfigRef; t: PType): Int128 =
case t.kind
of tyBool: result = toInt128(1'u)
@ -808,7 +836,13 @@ proc lastOrd*(conf: ConfigRef; t: PType): Int128 =
assert(t.n.kind == nkRange)
result = getOrdValue(t.n[1])
of tyInt:
if conf != nil and conf.target.intSize == 4: result = toInt128(0x7FFFFFFF)
if conf != nil:
case conf.target.intSize
of 8: result = toInt128(0x7FFFFFFFFFFFFFFF'u64)
of 4: result = toInt128(0x7FFFFFFF)
of 2: result = toInt128(0x00007FFF)
of 1: result = toInt128(0x0000007F)
else: discard
else: result = toInt128(0x7FFFFFFFFFFFFFFF'u64)
of tyInt8: result = toInt128(0x0000007F)
of tyInt16: result = toInt128(0x00007FFF)