http://llvm.org/bugs/show_bug.cgi?id=15317
Bug ID: 15317
Summary: LiveInterval::killedAt() is broken for early-clobber
kills and should be replaced by LiveRangeQuery
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Common Code Generator Code
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
LiveInterval::killedAt() has this implementation:
bool killedAt(SlotIndex index) const {
const_iterator r = find(index.getRegSlot(true));
return r != end() && r->end == index;
}
This will always return false for an early-clobber kill. We should replace its
(thankfully few) uses with LiveRangeQuery.
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