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Make issue-122805.rs big endian compatible

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Instead of not generating the function at all on big endian (which
makes the CHECK lines fail), instead use to_le() on big endian,
so that we essentially perform a bswap for both endiannesses.
This commit is contained in:
Nikita Popov 2024-06-11 10:13:07 +02:00
parent aec67e238d
commit 26fa5c2c30
1 changed files with 12 additions and 9 deletions
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21
tests/codegen/issues/issue-122805.rs
View file

@ -39,17 +39,20 @@
// OPT3WINX64-NEXT: store <8 x i16>
// CHECK-NEXT: ret void
#[no_mangle]
#[cfg(target_endian = "little")]
pub fn convert(value: [u16; 8]) -> [u8; 16] {
#[cfg(target_endian = "little")]
let bswap = u16::to_be;
#[cfg(target_endian = "big")]
let bswap = u16::to_le;
let addr16 = [
value[0].to_be(),
value[1].to_be(),
value[2].to_be(),
value[3].to_be(),
value[4].to_be(),
value[5].to_be(),
value[6].to_be(),
value[7].to_be(),
bswap(value[0]),
bswap(value[1]),
bswap(value[2]),
bswap(value[3]),
bswap(value[4]),
bswap(value[5]),
bswap(value[6]),
bswap(value[7]),
];
unsafe { core::mem::transmute::<_, [u8; 16]>(addr16) }
}