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nak: Use pcopy.push() in RA

Browse source 
This version guarantees that the source and destination vector stay in
sync.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24998>
This commit is contained in:
Faith Ekstrand 2023-06-06 16:02:08 -05:00 • committed by Marge Bot
parent c0e6d80063
commit c9a6073754
1 changed files with 13 additions and 8 deletions
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21
src/nouveau/compiler/nak_assign_regs.rs
View file

@ -389,13 +389,17 @@ impl RegFileAllocation {
*/
if let Some(evicted) = self.get_ssa(reg + c) {
self.free_ssa(evicted);
pcopy.srcs.push(RegRef::new(self.file, reg + c, 1).into());
pcopy.dsts.push(RegRef::new(self.file, old_reg, 1).into());
pcopy.push(
RegRef::new(self.file, old_reg, 1).into(),
RegRef::new(self.file, reg + c, 1).into(),
);
self.assign_reg(evicted, old_reg);
}
pcopy.srcs.push(RegRef::new(self.file, old_reg, 1).into());
pcopy.dsts.push(RegRef::new(self.file, reg + c, 1).into());
pcopy.push(
RegRef::new(self.file, reg + c, 1).into(),
RegRef::new(self.file, old_reg, 1).into(),
);
self.assign_reg(ssa[usize::from(c)], reg + c);
}
@ -493,8 +497,10 @@ impl RegFileAllocation {
if let Some(evicted) = self.get_ssa(reg + c) {
self.free_ssa(evicted);
let new_reg = self.try_find_unused_reg_range(0, 1).unwrap();
pcopy.srcs.push(RegRef::new(self.file, reg + c, 1).into());
pcopy.dsts.push(RegRef::new(self.file, new_reg, 1).into());
pcopy.push(
RegRef::new(self.file, new_reg, 1).into(),
RegRef::new(self.file, reg + c, 1).into(),
);
self.assign_reg(evicted, new_reg);
}
}
@ -851,8 +857,7 @@ impl AssignRegsBlock {
continue;
}
}
pcopy.srcs.push(src.into());
pcopy.dsts.push(dst.into());
pcopy.push(dst.into(), src.into());
}
if b.branch().is_some() {