slightly more cleanup

sparse_strips/vello_bench/src/tile.rs

diff --git a/sparse_strips/vello_bench/src/tile.rs b/sparse_strips/vello_bench/src/tile.rs
index cf7cbe6..280fcd3 100644
--- a/sparse_strips/vello_bench/src/tile.rs
+++ b/sparse_strips/vello_bench/src/tile.rs
@@ -2,28 +2,38 @@
 // SPDX-License-Identifier: Apache-2.0 OR MIT
 
 use crate::data::get_data_items;
-use criterion::Criterion;
+use criterion::{BenchmarkId, Criterion};
+use vello_common::flatten::Line;
 use vello_common::tile::Tiles;
 use vello_cpu::Level;
 
-pub fn tile(c: &mut Criterion) {
-    let mut g = c.benchmark_group("tile");
+fn run_tile_benchmark<F>(c: &mut Criterion, group_name: &str, op: F)
+where
+    F: Fn(&mut Tiles, &[Line], u16, u16) + Copy,
+{
+    let mut g = c.benchmark_group(group_name);
     g.sample_size(50);
 
-    macro_rules! tile_single {
-        ($item:expr) => {
-            let lines = $item.lines();
-
-            g.bench_function($item.name.clone(), |b| {
-                b.iter(|| {
-                    let mut tiler = Tiles::new(Level::new());
-                    tiler.make_tiles_analytic_aa(&lines, $item.width, $item.height);
-                })
-            });
-        };
-    }
-
     for item in get_data_items() {
-        tile_single!(item);
+        let lines = item.lines();
+        g.bench_with_input(BenchmarkId::from_parameter(&item.name), &item, |b, item| {
+            b.iter(|| {
+                let mut tiler = Tiles::new(Level::new());
+                op(&mut tiler, &lines, item.width, item.height);
+            });
+        });
+    }
+    g.finish();
+}
+
+pub fn tile(c: &mut Criterion) {
+    #[expect(clippy::type_complexity, reason = "tiler variants")]
+    let methods: &[(&str, fn(&mut Tiles, &[Line], u16, u16))] = &[
+        ("tile_aaa", |t, l, w, h| t.make_tiles_analytic_aa(l, w, h)),
+        ("tile_msaa", |t, l, w, h| t.make_tiles_msaa(l, w, h)),
+    ];
+
+    for (name, op) in methods {
+        run_tile_benchmark(c, name, *op);
     }
 }

sparse_strips/vello_common/src/tile.rs

diff --git a/sparse_strips/vello_common/src/tile.rs b/sparse_strips/vello_common/src/tile.rs
index b35745b..b93a45b 100644
--- a/sparse_strips/vello_common/src/tile.rs
+++ b/sparse_strips/vello_common/src/tile.rs
@@ -11,15 +11,15 @@
 use peniko::kurbo::common::FloatFuncs as _;
 
 /// T-op bit
-const T: u32 = 1 << 0;
+const T: u32 = 0b00001;
 /// B-ottom bit
-const B: u32 = 1 << 1;
+const B: u32 = 0b00010;
 /// L-eft bit
-const L: u32 = 1 << 2;
+const L: u32 = 0b00100;
 /// R-ight bit
-const R: u32 = 1 << 3;
+const R: u32 = 0b01000;
 /// W-inding bit
-const W: u32 = 1 << 4;
+const W: u32 = 0b10000;
 
 /// Shift amount corresponding to the bottom bit.
 const BOT_SHIFT: u32 = B.trailing_zeros();