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Make an assert message more verbose.

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This commit is contained in:
Dan Gohman
2018-05-29 14:11:07 -07:00
parent 7720a571fc
commit d8eaa19dda
1 changed files with 5 additions and 1 deletions
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6
lib/codegen/src/regalloc/reload.rs
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@@ -283,7 +283,11 @@ impl<'a> Context<'a> {
.expect("Extra results on non-call instruction"); .expect("Extra results on non-call instruction");
for (i, lv) in retvals.iter().enumerate() { for (i, lv) in retvals.iter().enumerate() {
let abi = self.cur.func.dfg.signatures[sig].returns[i]; let abi = self.cur.func.dfg.signatures[sig].returns[i];
debug_assert!(abi.location.is_reg()); debug_assert!(
abi.location.is_reg(),
"expected reg; got {:?}",
abi.location
);
if lv.affinity.is_stack() { if lv.affinity.is_stack() {
let reg = self.cur.func.dfg.replace_result(lv.value, abi.value_type); let reg = self.cur.func.dfg.replace_result(lv.value, abi.value_type);
self.liveness self.liveness