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x64: Implement ineg and bnot

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This commit is contained in:
bjorn3
2020-08-22 10:41:29 +02:00
committed by Benjamin Bouvier
parent f1fdd5764a
commit 74642b166f
5 changed files with 166 additions and 25 deletions
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43
cranelift/codegen/src/isa/x64/inst/mod.rs
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@@ -56,6 +56,18 @@ pub enum Inst {
dst: Writable<Reg>,
},
/// Bitwise negation
Not {
size: u8, // 1, 2, 4 or 8
src: Writable<Reg>,
},
/// Integer negation
Neg {
size: u8, // 1, 2, 4 or 8
src: Writable<Reg>,
},
/// Integer quotient and remainder: (div idiv) $rax $rdx (reg addr)
Div {
size: u8, // 1, 2, 4 or 8
@@ -512,6 +524,18 @@ impl Inst {
Self::UnaryRmR { size, op, src, dst }
}
pub(crate) fn not(size: u8, src: Writable<Reg>) -> Inst {
debug_assert_eq!(src.to_reg().get_class(), RegClass::I64);
debug_assert!(size == 8 || size == 4 || size == 2 || size == 1);
Inst::Not { size, src }
}
pub(crate) fn neg(size: u8, src: Writable<Reg>) -> Inst {
debug_assert_eq!(src.to_reg().get_class(), RegClass::I64);
debug_assert!(size == 8 || size == 4 || size == 2 || size == 1);
Inst::Neg { size, src }
}
pub(crate) fn div(size: u8, signed: bool, divisor: RegMem, loc: SourceLoc) -> Inst {
divisor.assert_regclass_is(RegClass::I64);
debug_assert!(size == 8 || size == 4 || size == 2 || size == 1);
@@ -1180,6 +1204,18 @@ impl ShowWithRRU for Inst {
show_ireg_sized(dst.to_reg(), mb_rru, *size),
),
Inst::Not { size, src } => format!(
"{} {}",
ljustify2("not".to_string(), suffixBWLQ(*size)),
show_ireg_sized(src.to_reg(), mb_rru, *size)
),
Inst::Neg { size, src } => format!(
"{} {}",
ljustify2("neg".to_string(), suffixBWLQ(*size)),
show_ireg_sized(src.to_reg(), mb_rru, *size)
),
Inst::Div {
size,
signed,
@@ -1645,6 +1681,12 @@ fn x64_get_regs(inst: &Inst, collector: &mut RegUsageCollector) {
collector.add_mod(*dst);
}
}
Inst::Not { src, .. } => {
collector.add_mod(*src);
}
Inst::Neg { src, .. } => {
collector.add_mod(*src);
}
Inst::Div { divisor, .. } => {
collector.add_mod(Writable::from_reg(regs::rax()));
collector.add_mod(Writable::from_reg(regs::rdx()));
@@ -1961,6 +2003,7 @@ fn x64_map_regs<RUM: RegUsageMapper>(inst: &mut Inst, mapper: &RUM) {
map_mod(mapper, dst);
}
}
Inst::Not { src, .. } | Inst::Neg { src, .. } => map_mod(mapper, src),
Inst::Div { divisor, .. } => divisor.map_uses(mapper),
Inst::MulHi { rhs, .. } => rhs.map_uses(mapper),
Inst::CheckedDivOrRemSeq { divisor, tmp, .. } => {