forked from AbleOS/ableos
fixing wide return value
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74eca58a91
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afd3c2b506
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@ -1369,24 +1369,32 @@ impl Codegen {
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tk => Some(Value::ty(tk.compress())),
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},
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E::Return { pos, val, .. } => {
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let ty = if let Some(val) = val {
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let size = self.ci.ret.map_or(17, |ty| self.tys.size_of(ty));
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let loc = match size {
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_ if self.ci.inline_ret_loc != Loc::default() => {
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Some(self.ci.inline_ret_loc.as_ref())
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}
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0 => None,
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1..=16 => Some(Loc::reg(1)),
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1..=8 => Some(Loc::reg(1)),
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9..=16 => None,
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_ => Some(Loc::reg(self.ci.ret_reg.as_ref()).into_derefed()),
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};
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self.expr_ctx(val, Ctx { ty: self.ci.ret, loc })?.ty
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let loc_is_none = loc.is_none();
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let value = if let Some(val) = val {
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self.expr_ctx(val, Ctx { ty: self.ci.ret, loc })?
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} else {
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ty::VOID.into()
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Value::void()
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};
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match self.ci.ret {
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None => self.ci.ret = Some(ty),
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Some(ret) => _ = self.assert_ty(pos, ty, ret, "return type"),
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None => self.ci.ret = Some(value.ty),
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Some(ret) => _ = self.assert_ty(pos, value.ty, ret, "return type"),
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}
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if let 9..=16 = size
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&& loc_is_none
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{
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self.store_sized(value.loc, Loc::reg(1), size);
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}
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self.ci.ret_relocs.push(Reloc::new(self.ci.code.len(), 1, 4));
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