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move big float from general to float register

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Folkert 2023-09-16 17:30:58 +02:00
parent 7f8ff25cd3
commit 8ceb705212
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3 changed files with 46 additions and 14 deletions
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32
crates/compiler/gen_dev/src/generic64/mod.rs
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@ -298,13 +298,13 @@ pub trait Assembler<GeneralReg: RegTrait, FloatReg: RegTrait>: Sized + Copy {
relocs: &mut Vec<'_, Relocation>,
dst: FloatReg,
imm: f32,
);
) -> Result<(), ()>;
fn mov_freg64_imm64(
buf: &mut Vec<'_, u8>,
relocs: &mut Vec<'_, Relocation>,
dst: FloatReg,
imm: f64,
);
) -> Result<(), ()>;
fn mov_reg64_imm64(buf: &mut Vec<'_, u8>, dst: GeneralReg, imm: i64);
fn mov_freg64_freg64(buf: &mut Vec<'_, u8>, dst: FloatReg, src: FloatReg);
@ -4322,14 +4322,34 @@ impl<
ASM::mov_reg64_imm64(&mut self.buf, reg, *x as i64);
}
(Literal::Float(x), LayoutRepr::Builtin(Builtin::Float(FloatWidth::F64))) => {
let reg = self.storage_manager.claim_float_reg(&mut self.buf, sym);
let freg = self.storage_manager.claim_float_reg(&mut self.buf, sym);
let val = *x;
ASM::mov_freg64_imm64(&mut self.buf, &mut self.relocs, reg, val);
if ASM::mov_freg64_imm64(&mut self.buf, &mut self.relocs, freg, val).is_err() {
// do the naive thing
let tmp = Symbol::DEV_TMP;
let reg = self.storage_manager.claim_general_reg(&mut self.buf, &tmp);
let val = i64::from_ne_bytes(val.to_ne_bytes());
ASM::mov_reg64_imm64(&mut self.buf, reg, val);
ASM::to_float_freg64_reg64(&mut self.buf, freg, reg);
self.storage_manager.free_symbol(&tmp);
}
}
(Literal::Float(x), LayoutRepr::Builtin(Builtin::Float(FloatWidth::F32))) => {
let reg = self.storage_manager.claim_float_reg(&mut self.buf, sym);
let freg = self.storage_manager.claim_float_reg(&mut self.buf, sym);
let val = *x as f32;
ASM::mov_freg32_imm32(&mut self.buf, &mut self.relocs, reg, val);
if ASM::mov_freg32_imm32(&mut self.buf, &mut self.relocs, freg, val).is_err() {
// do the naive thing
let tmp = Symbol::DEV_TMP;
let reg = self.storage_manager.claim_general_reg(&mut self.buf, &tmp);
let val = i32::from_ne_bytes(val.to_ne_bytes());
ASM::mov_reg64_imm64(&mut self.buf, reg, val as i64);
ASM::to_float_freg32_reg64(&mut self.buf, freg, reg);
self.storage_manager.free_symbol(&tmp);
}
}
(Literal::Decimal(bytes), LayoutRepr::Builtin(Builtin::Decimal)) => {
self.storage_manager.with_tmp_general_reg(