Delete selects

hercules_opt/src/sroa.rs

@@ -412,6 +412,7 @@ pub fn sroa(editor: &mut FunctionEditor, reverse_postorder: &Vec<NodeID>, types:
                                 },
                             );
                         });
+                    to_delete.push(node);
                 } else {
                     worklist.push_back(WorkItem::AllocatedTernary {
                         cond,

hercules_samples/products.hir

-fn test(x : prod(i32, f32), y: prod(i32, f32), b: bool) -> prod(i32, f32)
-  res = select(b, x, y)
-  r = return(start, res)
+fn test(x : prod(i32, f32), b: bool) -> prod(i32, f32)
+  zero = constant(u64, 0)
+  one = constant(i32, 1)
+  two = constant(u64, 2)
+  three = constant(f32, 3.0)
+
+  f_ctrl = fork(start, 10)
+  idx = thread_id(f_ctrl, 0)
+  
+  mod2 = rem(idx, two)
+  is_even = eq(mod2, zero)
+  field0 = read(res, field(0))
+  field1 = read(res, field(1))
+  add = add(field0, one)
+  mul = mul(field1, three)
+  upd0 = write(res, add, field(0))
+  upd1 = write(res, mul, field(1))
+  select = select(is_even, upd0, upd1)
+  
+  j_ctrl = join(f_ctrl)
+  res = reduce(j_ctrl, x, select)
+
+  r = return(j_ctrl, res)