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Use the target types bitsize instead of the source type's

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This commit is contained in:
Oliver Schneider 2018-05-22 15:19:55 +02:00
parent bf39c7f87c
commit 4ca169ce84
1 changed files with 6 additions and 6 deletions
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12
src/librustc_mir/interpret/cast.rs
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@ -92,29 +92,29 @@ impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M> {
match dest_ty.sty {
// float -> uint
TyUint(t) => {
let width = t.bit_width().unwrap_or(self.memory.pointer_size().bytes() as usize * 8);
let width = t.bit_width().unwrap_or(self.memory.pointer_size().bits() as usize);
match fty {
FloatTy::F32 => Ok(Scalar::Bits {
bits: Single::from_bits(bits).to_u128(width).value,
defined: 32,
defined: width as u8,
}),
FloatTy::F64 => Ok(Scalar::Bits {
bits: Double::from_bits(bits).to_u128(width).value,
defined: 64,
defined: width as u8,
}),
}
},
// float -> int
TyInt(t) => {
let width = t.bit_width().unwrap_or(self.memory.pointer_size().bytes() as usize * 8);
let width = t.bit_width().unwrap_or(self.memory.pointer_size().bits() as usize);
match fty {
FloatTy::F32 => Ok(Scalar::Bits {
bits: Single::from_bits(bits).to_i128(width).value as u128,
defined: 32,
defined: width as u8,
}),
FloatTy::F64 => Ok(Scalar::Bits {
bits: Double::from_bits(bits).to_i128(width).value as u128,
defined: 64,
defined: width as u8,
}),
}
},