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Add assembly generation test to x86_64 subtraction instruction

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satotake 2021-11-19 17:00:59 +00:00 • committed by GitHub
parent 414bad5b28
commit 7f27f9b854
1 changed files with 28 additions and 0 deletions
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28
compiler/gen_dev/src/generic64/x86_64.rs
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@ -1581,6 +1581,34 @@ mod tests {
}
}
#[test]
fn test_sub_reg64_reg64() {
let arena = bumpalo::Bump::new();
let mut buf = bumpalo::vec![in &arena];
for ((dst, src), expected) in &[
(
(X86_64GeneralReg::RAX, X86_64GeneralReg::RAX),
[0x48, 0x29, 0xC0],
),
(
(X86_64GeneralReg::RAX, X86_64GeneralReg::R15),
[0x4C, 0x29, 0xF8],
),
(
(X86_64GeneralReg::R15, X86_64GeneralReg::RAX),
[0x49, 0x29, 0xC7],
),
(
(X86_64GeneralReg::R15, X86_64GeneralReg::R15),
[0x4D, 0x29, 0xFF],
),
] {
buf.clear();
sub_reg64_reg64(&mut buf, *dst, *src);
assert_eq!(expected, &buf[..]);
}
}
#[test]
fn test_addsd_freg64_freg64() {
let arena = bumpalo::Bump::new();