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Support 128-bit integers i128 u128

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gingerBill
2019-05-28 20:27:45 +01:00
parent 2b080dbbc2
commit 3d2279fba0
10 changed files with 582 additions and 51 deletions
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32
src/check_expr.cpp
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@@ -1332,9 +1332,29 @@ bool check_representable_as_constant(CheckerContext *c, ExactValue in_value, Typ
BigInt imin = {};
BigInt imax = {};
big_int_from_u64(&umax, unsigned_integer_maxs[bit_size]);
big_int_from_i64(&imin, signed_integer_mins[bit_size]);
big_int_from_i64(&imax, signed_integer_maxs[bit_size]);
if (bit_size < 16) {
big_int_from_u64(&umax, unsigned_integer_maxs[bit_size]);
big_int_from_i64(&imin, signed_integer_mins[bit_size]);
big_int_from_i64(&imax, signed_integer_maxs[bit_size]);
} else {
big_int_from_u64(&umax, 1);
big_int_from_i64(&imin, 1);
big_int_from_i64(&imax, 1);
BigInt bi128 = {};
BigInt bi127 = {};
big_int_from_i64(&bi128, 128);
big_int_from_i64(&bi127, 127);
big_int_shl_eq(&umax, &bi128);
big_int_sub_eq(&umax, &BIG_INT_ONE);
big_int_shl_eq(&imin, &bi127);
big_int_neg(&imin, &imin);
big_int_shl_eq(&imax, &bi127);
big_int_sub_eq(&imax, &BIG_INT_ONE);
}
switch (type->Basic.kind) {
case Basic_rune:
@@ -1342,14 +1362,17 @@ bool check_representable_as_constant(CheckerContext *c, ExactValue in_value, Typ
case Basic_i16:
case Basic_i32:
case Basic_i64:
case Basic_i128:
case Basic_int:
case Basic_i16le:
case Basic_i32le:
case Basic_i64le:
case Basic_i128le:
case Basic_i16be:
case Basic_i32be:
case Basic_i64be:
case Basic_i128be:
{
// return imin <= i && i <= imax;
int a = big_int_cmp(&imin, &i);
@@ -1361,15 +1384,18 @@ bool check_representable_as_constant(CheckerContext *c, ExactValue in_value, Typ
case Basic_u16:
case Basic_u32:
case Basic_u64:
case Basic_u128:
case Basic_uint:
case Basic_uintptr:
case Basic_u16le:
case Basic_u32le:
case Basic_u64le:
case Basic_u128le:
case Basic_u16be:
case Basic_u32be:
case Basic_u64be:
case Basic_u128be:
{
// return 0ull <= i && i <= umax;
int b = big_int_cmp(&i, &umax);