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Move windows i128 argument by-ref handling to lib_call

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This commit is contained in:
bjorn3 2023-02-17 10:24:06 +00:00
parent 7bd3b771b0
commit ede7cde065
3 changed files with 40 additions and 63 deletions
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22
src/abi/mod.rs
View File

@ -117,6 +117,28 @@ impl<'tcx> FunctionCx<'_, '_, 'tcx> {
returns: Vec<AbiParam>,
args: &[Value],
) -> &[Value] {
if self.tcx.sess.target.is_like_windows
&& params.iter().any(|param| param.value_type == types::I128)
{
let (params, args): (Vec<_>, Vec<_>) =
params
.into_iter()
.zip(args)
.map(|(param, &arg)| {
if param.value_type == types::I128 {
let arg_ptr = Pointer::stack_slot(self.bcx.create_sized_stack_slot(
StackSlotData { kind: StackSlotKind::ExplicitSlot, size: 16 },
));
arg_ptr.store(self, arg, MemFlags::trusted());
(AbiParam::new(self.pointer_type), arg_ptr.get_addr(self))
} else {
(param, arg)
}
})
.unzip();
return self.lib_call(name, params, returns, &args);
}
let sig = Signature { params, returns, call_conv: self.target_config.default_call_conv };
let func_id = self.module.declare_function(name, Linkage::Import, &sig).unwrap();
let func_ref = self.module.declare_func_in_func(func_id, &mut self.bcx.func);

29
src/cast.rs
View File

@ -64,29 +64,12 @@ pub(crate) fn clif_int_or_float_cast(
},
);
if fx.tcx.sess.target.is_like_windows {
// FIXME move this logic into lib_call
let arg_place = CPlace::new_stack_slot(
fx,
fx.layout_of(if from_signed { fx.tcx.types.i128 } else { fx.tcx.types.u128 }),
);
let arg_ptr = arg_place.to_ptr();
arg_ptr.store(fx, from, MemFlags::trusted());
let args = [arg_ptr.get_addr(fx)];
return fx.lib_call(
&name,
vec![AbiParam::new(fx.pointer_type)],
vec![AbiParam::new(to_ty)],
&args,
)[0];
} else {
return fx.lib_call(
&name,
vec![AbiParam::new(types::I128)],
vec![AbiParam::new(to_ty)],
&[from],
)[0];
}
return fx.lib_call(
&name,
vec![AbiParam::new(types::I128)],
vec![AbiParam::new(to_ty)],
&[from],
)[0];
}
// int-like -> float

52
src/codegen_i128.rs
View File

@ -32,21 +32,14 @@ pub(crate) fn maybe_codegen<'tcx>(
let val_ty = if is_signed { fx.tcx.types.i128 } else { fx.tcx.types.u128 };
if fx.tcx.sess.target.is_like_windows {
let ret_place = CPlace::new_stack_slot(fx, lhs.layout());
let (lhs_ptr, lhs_extra) = lhs.force_stack(fx);
let (rhs_ptr, rhs_extra) = rhs.force_stack(fx);
assert!(lhs_extra.is_none());
assert!(rhs_extra.is_none());
let args = [
ret_place.to_ptr().get_addr(fx),
lhs_ptr.get_addr(fx),
rhs_ptr.get_addr(fx),
];
let args =
[ret_place.to_ptr().get_addr(fx), lhs.load_scalar(fx), rhs.load_scalar(fx)];
fx.lib_call(
"__multi3",
vec![
AbiParam::special(fx.pointer_type, ArgumentPurpose::StructReturn),
AbiParam::new(fx.pointer_type),
AbiParam::new(fx.pointer_type),
AbiParam::new(types::I128),
AbiParam::new(types::I128),
],
vec![],
&args,
@ -87,29 +80,12 @@ pub(crate) fn maybe_codegen<'tcx>(
assert!(checked);
let out_ty = fx.tcx.mk_tup([lhs.layout().ty, fx.tcx.types.bool].iter());
let out_place = CPlace::new_stack_slot(fx, fx.layout_of(out_ty));
let (param_types, args) = if fx.tcx.sess.target.is_like_windows {
let (lhs_ptr, lhs_extra) = lhs.force_stack(fx);
let (rhs_ptr, rhs_extra) = rhs.force_stack(fx);
assert!(lhs_extra.is_none());
assert!(rhs_extra.is_none());
(
vec![
AbiParam::special(fx.pointer_type, ArgumentPurpose::StructReturn),
AbiParam::new(fx.pointer_type),
AbiParam::new(fx.pointer_type),
],
[out_place.to_ptr().get_addr(fx), lhs_ptr.get_addr(fx), rhs_ptr.get_addr(fx)],
)
} else {
(
vec![
AbiParam::special(fx.pointer_type, ArgumentPurpose::StructReturn),
AbiParam::new(types::I128),
AbiParam::new(types::I128),
],
[out_place.to_ptr().get_addr(fx), lhs.load_scalar(fx), rhs.load_scalar(fx)],
)
};
let param_types = vec![
AbiParam::special(fx.pointer_type, ArgumentPurpose::StructReturn),
AbiParam::new(types::I128),
AbiParam::new(types::I128),
];
let args = [out_place.to_ptr().get_addr(fx), lhs.load_scalar(fx), rhs.load_scalar(fx)];
let name = match (bin_op, is_signed) {
(BinOp::Add, false) => "__rust_u128_addo",
(BinOp::Add, true) => "__rust_i128_addo",
@ -132,14 +108,10 @@ pub(crate) fn maybe_codegen<'tcx>(
_ => unreachable!(),
};
if fx.tcx.sess.target.is_like_windows {
let (lhs_ptr, lhs_extra) = lhs.force_stack(fx);
let (rhs_ptr, rhs_extra) = rhs.force_stack(fx);
assert!(lhs_extra.is_none());
assert!(rhs_extra.is_none());
let args = [lhs_ptr.get_addr(fx), rhs_ptr.get_addr(fx)];
let args = [lhs.load_scalar(fx), rhs.load_scalar(fx)];
let ret = fx.lib_call(
name,
vec![AbiParam::new(fx.pointer_type), AbiParam::new(fx.pointer_type)],
vec![AbiParam::new(types::I128), AbiParam::new(types::I128)],
vec![AbiParam::new(types::I64X2)],
&args,
)[0];