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nak: Mark Large SSARef paths as cold

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This hints to the optimizer that these paths are less commonly executed.

Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34794>
This commit is contained in:
Mel Henning 2025-05-02 15:17:56 -04:00 • committed by Marge Bot
parent 2f44970b68
commit d91ba8f36d
1 changed files with 17 additions and 3 deletions
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20
src/nouveau/compiler/nak/ir.rs
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@ -499,6 +499,7 @@ impl SSARef {
pub fn new(comps: &[SSAValue]) -> SSARef {
SSARef {
v: if comps.len() > Self::SMALL_SIZE {
Self::cold();
SSARefInner::Large(Box::new(SSAValueArray::new(comps)))
} else {
SSARefInner::Small(SSAValueArray::new(comps))
@ -521,7 +522,10 @@ impl SSARef {
pub fn comps(&self) -> u8 {
match &self.v {
SSARefInner::Small(x) => x.comps(),
SSARefInner::Large(x) => x.comps(),
SSARefInner::Large(x) => {
Self::cold();
x.comps()
}
}
}
@ -564,6 +568,10 @@ impl SSARef {
false
}
}
#[cold]
#[inline]
fn cold() {}
}
impl Deref for SSARef {
@ -572,7 +580,10 @@ impl Deref for SSARef {
fn deref(&self) -> &[SSAValue] {
match &self.v {
SSARefInner::Small(x) => x.deref(),
SSARefInner::Large(x) => x.deref(),
SSARefInner::Large(x) => {
Self::cold();
x.deref()
}
}
}
}
@ -581,7 +592,10 @@ impl DerefMut for SSARef {
fn deref_mut(&mut self) -> &mut [SSAValue] {
match &mut self.v {
SSARefInner::Small(x) => x.deref_mut(),
SSARefInner::Large(x) => x.deref_mut(),
SSARefInner::Large(x) => {
Self::cold();
x.deref_mut()
}
}
}
}