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more assertions in switch_to_block #5489

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Merged
youknowone merged 1 commit into from
Jan 21, 2025
Merged

more assertions in switch_to_block #5489

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5 changes: 3 additions & 2 deletions compiler/codegen/src/compile.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3036,16 +3036,17 @@ impl Compiler {
fn switch_to_block(&mut self, block: ir::BlockIdx) {
let code = self.current_code_info();
let prev = code.current_block;
assert_ne!(prev, block, "recursive switching {prev:?} -> {block:?}");
assert_eq!(
code.blocks[block].next,
ir::BlockIdx::NULL,
"switching to completed block"
"switching {prev:?} -> {block:?} to completed block"
);
let prev_block = &mut code.blocks[prev.0 as usize];
assert_eq!(
prev_block.next.0,
u32::MAX,
"switching from block that's already got a next"
"switching {prev:?} -> {block:?} from block that's already got a next"
);
prev_block.next = block;
code.current_block = block;
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