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Use layout repr to determine register width

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Ayaz Hafiz 2023-05-11 14:15:15 -05:00
parent 172eae735d
commit 744e8ca68d
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1 changed files with 8 additions and 7 deletions
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15
crates/compiler/gen_dev/src/generic64/mod.rs
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@ -39,12 +39,12 @@ pub enum RegisterWidth {
}
impl RegisterWidth {
fn try_from_layout(layout: InLayout) -> Option<Self> {
fn try_from_layout(layout: LayoutRepr) -> Option<Self> {
match layout {
Layout::BOOL | Layout::I8 | Layout::U8 => Some(RegisterWidth::W8),
Layout::I16 | Layout::U16 => Some(RegisterWidth::W16),
Layout::U32 | Layout::I32 => Some(RegisterWidth::W32),
Layout::I64 | Layout::U64 => Some(RegisterWidth::W64),
LayoutRepr::BOOL | LayoutRepr::I8 | LayoutRepr::U8 => Some(RegisterWidth::W8),
LayoutRepr::I16 | LayoutRepr::U16 => Some(RegisterWidth::W16),
LayoutRepr::U32 | LayoutRepr::I32 => Some(RegisterWidth::W32),
LayoutRepr::I64 | LayoutRepr::U64 => Some(RegisterWidth::W64),
_ => None,
}
}
@ -886,9 +886,10 @@ impl<
fn move_return_value(&mut self, dst: &Symbol, ret_layout: &InLayout<'a>) {
// move return value to dst.
match self.interner().get(*ret_layout).repr {
let ret_repr = self.interner().get(*ret_layout).repr;
match ret_repr {
single_register_integers!() => {
let width = RegisterWidth::try_from_layout(*ret_layout).unwrap();
let width = RegisterWidth::try_from_layout(ret_repr).unwrap();
let dst_reg = self.storage_manager.claim_general_reg(&mut self.buf, dst);
ASM::mov_reg_reg(&mut self.buf, width, dst_reg, CC::GENERAL_RETURN_REGS[0]);