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Improve assertion text for missing live ranges.

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Jakob Stoklund Olesen
2017-02-18 10:22:00 -08:00
parent 85fa68023c
commit a20afbefe0
1 changed files with 4 additions and 1 deletions
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5
lib/cretonne/src/regalloc/live_value_tracker.rs
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@@ -229,7 +229,10 @@ impl LiveValueTracker {
// Add the values defined by `inst`. // Add the values defined by `inst`.
let first_def = self.live.values.len(); let first_def = self.live.values.len();
for value in dfg.inst_results(inst) { for value in dfg.inst_results(inst) {
let lr = liveness.get(value).expect("Instruction result has no live range"); let lr = match liveness.get(value) {
Some(lr) => lr,
None => panic!("{} result {} has no live range", dfg[inst].opcode(), value),
};
assert_eq!(lr.def(), inst.into()); assert_eq!(lr.def(), inst.into());
match lr.def_local_end().into() { match lr.def_local_end().into() {
ExpandedProgramPoint::Inst(endpoint) => { ExpandedProgramPoint::Inst(endpoint) => {