#3719 Casts from float to BitInt broken

[Philipp Klaus Krause]

The following hits an assertion in SDCC (both 4.4.0 and current trunk):

float f;
unsigned _BitInt(8) i;

void h(void)
{
    i = f;
}

[Philipp Klaus Krause]

As of [r15561], this should now work for _BitInt of width up to 32 bits for non-pdk ports. For pdk ports, the tests fail, for width wider than 32 bits compilation fails.

[Philipp Klaus Krause]

The pdk test failures turned out to be an issue in codegen that could also affect some other casts to_BitInt. That is fixed in [r15565].

[Philipp Klaus Krause]

The third, and I hope, last, part of this bug is fixed in [r15566].

[Philipp Klaus Krause]

The third, and I hope, last, part of this bug is fixed in [r15566].