Copy one run-A element per gallop round in merge_lo

kangdora · kangdora · commit b4fda72fa412 · 2026-08-01T16:01:18.000+09:00
diff --git a/crates/vm/src/sorting.rs b/crates/vm/src/sorting.rs
@@ -150,6 +150,10 @@ impl<T: Clone> MergeState<T> {
                         break 'merging Ok(LoBreakout::Succeed);
                     }
                 }
+                values[dest] = self.buf[cursor_a].clone();
+                dest += 1;
+                cursor_a += 1;
+                len_a -= 1;
                 if len_a == 1 {
                     break 'merging Ok(LoBreakout::CopyB);
                 }

Original file line number	Diff line number	Diff line change
`@@ -150,6 +150,10 @@ impl<T: Clone> MergeState<T> {`
`150`	`150`	`break 'merging Ok(LoBreakout::Succeed);`
`151`	`151`	`}`
`152`	`152`	`}`
	`153`	`+ values[dest] = self.buf[cursor_a].clone();`
	`154`	`+ dest += 1;`
	`155`	`+ cursor_a += 1;`
	`156`	`+ len_a -= 1;`
`153`	`157`	`if len_a == 1 {`
`154`	`158`	`break 'merging Ok(LoBreakout::CopyB);`
`155`	`159`	`}`