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compact some pattern matches

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Folkert 2022-09-03 16:04:42 +02:00
parent c5edd98bef
commit 56463faa80
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1 changed files with 9 additions and 20 deletions
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29
crates/compiler/gen_dev/src/generic64/x86_64.rs
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@ -1259,31 +1259,20 @@ impl Assembler<X86_64GeneralReg, X86_64FloatReg> for X86_64Assembler {
#[inline(always)]
fn movsx_reg64_base32(buf: &mut Vec<'_, u8>, dst: X86_64GeneralReg, offset: i32, size: u8) {
debug_assert!(size <= 8);
if size == 8 {
Self::mov_reg64_base32(buf, dst, offset);
} else if size == 4 {
todo!("sign extending 4 byte values");
} else if size == 2 {
todo!("sign extending 2 byte values");
} else if size == 1 {
todo!("sign extending 1 byte values");
} else {
internal_error!("Invalid size for sign extension: {}", size);
match size {
8 => Self::mov_reg64_base32(buf, dst, offset),
4 | 2 | 1 => todo!("sign extending {size} byte values"),
_ => internal_error!("Invalid size for sign extension: {size}"),
}
}
#[inline(always)]
fn movzx_reg64_base32(buf: &mut Vec<'_, u8>, dst: X86_64GeneralReg, offset: i32, size: u8) {
debug_assert!(size <= 8);
if size == 8 {
Self::mov_reg64_base32(buf, dst, offset);
} else if size == 4 {
todo!("zero extending 4 byte values");
} else if size == 2 {
todo!("zero extending 2 byte values");
} else if size == 1 {
movzx_reg64_base8_offset32(buf, dst, X86_64GeneralReg::RBP, offset);
} else {
internal_error!("Invalid size for zero extension: {}", size);
match size {
8 => Self::mov_reg64_base32(buf, dst, offset),
4 | 2 => todo!("zero extending {size} byte values"),
1 => movzx_reg64_base8_offset32(buf, dst, X86_64GeneralReg::RBP, offset),
_ => internal_error!("Invalid size for zero extension: {size}"),
}
}