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machinst x64: add more FP support

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This commit is contained in:
Benjamin Bouvier
2020-07-09 18:40:42 +02:00
parent 5c5a30f76c
commit ead8a835c4
10 changed files with 636 additions and 144 deletions
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49
cranelift/codegen/src/isa/x64/abi.rs
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@@ -957,25 +957,39 @@ fn adjust_stack<C: LowerCtx<I = Inst>>(ctx: &mut C, amount: u64, is_sub: bool) {
}
fn load_stack(mem: impl Into<SyntheticAmode>, into_reg: Writable<Reg>, ty: Type) -> Inst {
let ext_mode = match ty {
types::B1 | types::B8 | types::I8 => Some(ExtMode::BQ),
types::B16 | types::I16 => Some(ExtMode::WQ),
types::B32 | types::I32 => Some(ExtMode::LQ),
types::B64 | types::I64 => None,
types::F32 => todo!("f32 load_stack"),
types::F64 => todo!("f64 load_stack"),
_ => unimplemented!("load_stack({})", ty),
let (is_int, ext_mode) = match ty {
types::B1 | types::B8 | types::I8 => (true, Some(ExtMode::BQ)),
types::B16 | types::I16 => (true, Some(ExtMode::WQ)),
types::B32 | types::I32 => (true, Some(ExtMode::LQ)),
types::B64 | types::I64 => (true, None),
types::F32 | types::F64 => (false, None),
_ => panic!("load_stack({})", ty),
};
let mem = mem.into();
match ext_mode {
Some(ext_mode) => Inst::movsx_rm_r(
ext_mode,
if is_int {
match ext_mode {
Some(ext_mode) => Inst::movsx_rm_r(
ext_mode,
RegMem::mem(mem),
into_reg,
/* infallible load */ None,
),
None => Inst::mov64_m_r(mem, into_reg, None /* infallible */),
}
} else {
let sse_op = match ty {
types::F32 => SseOpcode::Movss,
types::F64 => SseOpcode::Movsd,
_ => unreachable!(),
};
Inst::xmm_mov(
sse_op,
RegMem::mem(mem),
into_reg,
/* infallible load */ None,
),
None => Inst::mov64_m_r(mem, into_reg, None /* infallible */),
None, /* infallible */
)
}
}
@@ -993,7 +1007,12 @@ fn store_stack(mem: impl Into<SyntheticAmode>, from_reg: Reg, ty: Type) -> Inst
if is_int {
Inst::mov_r_m(size, from_reg, mem, /* infallible store */ None)
} else {
unimplemented!("f32/f64 store_stack");
let sse_op = match size {
4 => SseOpcode::Movss,
8 => SseOpcode::Movsd,
_ => unreachable!(),
};
Inst::xmm_mov_r_m(sse_op, from_reg, mem, /* infallible store */ None)
}
}