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Properly legalize with empty jump tables.

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This commit is contained in:
Nicolas B. Pierron
2019-07-29 14:11:40 +02:00
committed by Nicolas B. Pierron
parent 6e57e3f8f3
commit f0d7438728
2 changed files with 23 additions and 3 deletions
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9
cranelift/codegen/src/legalizer/mod.rs
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@@ -295,9 +295,12 @@ fn expand_br_table_conds(
// This is a poor man's jump table using just a sequence of conditional branches.
let table_size = func.jump_tables[table].len();
let mut cond_failed_ebb = std::vec::Vec::with_capacity(table_size - 1);
for _ in 0..table_size - 1 {
cond_failed_ebb.push(func.dfg.make_ebb());
let mut cond_failed_ebb = vec![];
if table_size >= 1 {
cond_failed_ebb = std::vec::Vec::with_capacity(table_size - 1);
for _ in 0..table_size - 1 {
cond_failed_ebb.push(func.dfg.make_ebb());
}
}
let mut pos = FuncCursor::new(func).at_inst(inst);