spv-in flow: fix loop

src/front/spv/flow.rs

@@ -1,4 +1,4 @@
-#![allow(dead_code)]
+ #![allow(dead_code)]
 
 use super::error::Error;
 ///! see https://en.wikipedia.org/wiki/Control-flow_graph
@@ -394,19 +394,7 @@ impl FlowGraph {
                 };
                 Ok(result)
             }
-            Some(ControlFlowNodeType::Continue) => {
-                let back_block = match node.terminator {
-                    Terminator::Branch { target_id } => {
-                        self.naga_traverse(self.block_to_node[&target_id], None)?
-                    }
-                    _ => return Err(Error::InvalidTerminator),
-                };
-
-                let mut result = node.block.clone();
-                result.extend(back_block);
-                result.push(crate::Statement::Continue);
-                Ok(result)
-            }
+            Some(ControlFlowNodeType::Continue) => Ok(node.block.clone()),
             Some(ControlFlowNodeType::Back) => Ok(node.block.clone()),
             Some(ControlFlowNodeType::Kill) => {
                 let mut result = node.block.clone();

tests/out/shadow.info.ron.snap

@@ -1,6 +1,7 @@
 ---
 source: tests/snapshots.rs
 expression: output
+
 ---
 (
     functions: [
@@ -878,7 +879,7 @@ expression: output
                     control_flags: (
                         bits: 1,
                     ),
-                    ref_count: 12,
+                    ref_count: 11,
                     assignable_global: None,
                 ),
                 (
@@ -1214,7 +1215,7 @@ expression: output
                     control_flags: (
                         bits: 1,
                     ),
-                    ref_count: 2,
+                    ref_count: 1,
                     assignable_global: None,
                 ),
                 (

tests/out/shadow.ron.snap

@@ -1107,11 +1107,6 @@ expression: output
                                 pointer: 43,
                                 value: 91,
                             ),
-                            Store(
-                                pointer: 44,
-                                value: 92,
-                            ),
-                            Continue,
                         ],
                         continuing: [
                             Store(